Texas Vascular Plant Image Library Images of the Asteraceae

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unidentified genus (zoom) - Capitulum from above; Research Center area, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Capitulum from side; Research Center area, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Capitulum from side, florets; Research Center area, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Leaves; Research Center area, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Infructescence; Research Center area, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Infructescence, close; Research Center area, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Achenes, pappus; Research Center area, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Achenes, pappus - close; Research Center area, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Plant in flower; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Capitula; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Infructescence; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Leaf; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Capitulum, front; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Plant in flower; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Inflorescences; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Inflorescences, leaves; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Capitulum, side view; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Capitulum with flower; Volcán Poás National Park, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Capitula; Volcán Poás National Park, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Plants in flower; Volcán Poás National Park, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Leaves; Volcán Poás National Park, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Inflorescences; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Plant in flower; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Plant in fruit; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Infructescences; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

unidentified genus (zoom) - Inflorescences, past anthesis; road to Volcán Rincón de la Vieja, Santa Rosa National Park, Area de Conservación Guanacaste, Costa Rica - photo: TAMU-HW

Achillea millefolium - Cultivated. (whole plant) - photo: TAMU - JM

Achillea millefolium - Cultivated. (heads) - photo: TAMU - JM

Achillea millefolium from Kohler's Medicinal Plants

Ambrosia artemisiifolia (leaf - dissected)

Ambrosia artemisiifolia (zoom) - staminate capitula - weed in soybean field along Beech Road, Stark County, Ohio - photo: TAMU-HW

Ambrosia psilostachya - Native, from College Station, TX. (whole plant) - photo: TAMU-HW

Ambrosia psilostachya - Native, from College Station, TX. (inflorescence) - photo: TAMU - JM

Ambrosia psilostachya - Native, from College Station, TX. (head) - photo: TAMU - JM

Ambrosia psilostachya - inflorescences, pistillate (base) and staminate (top) - photo: TAMU-HW

Ambrosia sp. (zoom) - Staminate capitula; Pickering Ranch, Flynn, Leon County, Texas - photo: TAMU-HW

Ambrosia sp. (zoom) - Pistillate capitula; Pickering Ranch, Flynn, Leon County, Texas - photo: TAMU-HW

Ambrosia sp. (zoom) - Pistillate capitula, close; Pickering Ranch, Flynn, Leon County, Texas - photo: TAMU-HW

Ambrosia trifida - Native, from Navasota Flora. (whole plant) - photo: TAMU - JM

Ambrosia trifida - staminate and pistillate capitula - photo: TAMU-HW

Ambrosia trifida - staminate capitulum - photo: TAMU-HW

Anacyclus pyrethrum from Kohler's Medicinal Plants

Antennaria fallax - plant in flower - photo: TAMU-HW

Antennaria fallax - inflorescences - photo: TAMU-HW

Antennaria fallax - inflorescence - close - photo: TAMU-HW

Antennaria fallax (zoom) - Plant in flower; at north edge of the 'Mesa' at Lick Creek Park, College Station (Brazos County), Texas (site overview) - photo: TAMU-HW

Antennaria fallax (zoom) - Inflorescences; at north edge of the 'Mesa' at Lick Creek Park, College Station (Brazos County), Texas (site overview) - photo: TAMU-HW

Antennaria fallax (zoom) - Rosette leaves; at north edge of the 'Mesa' at Lick Creek Park, College Station (Brazos County), Texas (site overview) - photo: TAMU-HW

Antennaria fallax (zoom) - Plants in flower; at north edge of the 'Mesa' at Lick Creek Park, College Station (Brazos County), Texas (site overview) - photo: TAMU-HW

Antennaria plantaginifolia - Native, from Georgia. (whole plant) - photo: TAMU - JM

Anthemis arvensis from Kohler's Medicinal Plants

Anthemis cotula from Kohler's Medicinal Plants

Anthemis nobilis from Kohler's Medicinal Plants

Arctium minus (zoom) - capitulum - close - Beech Road, Stark County, Ohio - photo: TAMU-HW

Arctium minus (zoom) - leaf, inflorescences - Beech Road, Stark County, Ohio - photo: TAMU-HW

Arctium minus (zoom) - capitula past anthesis; Alliance, Beech Road, Stark County, Ohio - photo: TAMU-HW

Arnica cordifolia - flowers of the heart-leaf leopardbane -- Laramie Mountains, Albany Co., Wyoming, USA. - photo: James Reveal

Arnica latifolia - Native, from Tipsoo Lake, Chinook Pass, WA. (whole plant) - photo: TAMU - JM

Arnica latifolia - Native, from Tipsoo Lake, Chinook Pass, WA. (head) - photo: TAMU - JM

Arnica latifolia - Native, from Sunrise, Mt. Rainier, WA. (whole plants) - photo: TAMU - JM

Arnica montana from Kohler's Medicinal Plants

Arnoglossum plantagineum (zoom) - Capitula; Weaver Ranch, Grimes County, Texas - photo: TAMU-HW

Arnoglossum plantagineum (zoom) - Capitula, close; Weaver Ranch, Grimes County, Texas - photo: TAMU-HW

Artemisia absinthium from Kohler's Medicinal Plants

Artemisia cina from Kohler's Medicinal Plants

Artemisia sp. - Images from the Texas A&M Campus Flora Project

Artemisia vulgaris from Kohler's Medicinal Plants

Aster lateriflorus - inflorescence - photo: TAMU-HW

Aster lateriflorus - inflorescence (side/phyllaries) - photo: TAMU-HW

Aster lateriflorus - leaf - photo: TAMU-HW

Baccharis halimifolia - Native, from College Station, TX. (leaves) - photo: TAMU - JM

Baccharis halimifolia (zoom) - Pistillate plant in fruit; Peach Creek Preserve, Brazos County, Texas - photo: TAMU-HW

Baccharis halimifolia (zoom) - Staminate plant in late flower; Peach Creek Preserve, Brazos County, Texas - photo: TAMU-HW

Baccharis halimifolia (zoom) - Staminate capitula, post anthesis; Peach Creek Preserve, Brazos County, Texas - photo: TAMU-HW

Baccharis halimifolia (zoom) - Pistillate capitula, with fruit, pappus; Peach Creek Preserve, Brazos County, Texas - photo: TAMU-HW

Baccharis halimifolia (zoom) - Pistillate capitula in fruit, close; Peach Creek Preserve, Brazos County, Texas - photo: TAMU-HW

Baccharis texana - Native, from Grimes Co., TX. (female plant in fruit) - photo: TAMU - JM

Baileya multiradiata - Native, from Zion National Park, UT. (whole plant) - photo: TAMU - JM

Baileya multiradiata - Native, from Zion National Park, UT. (head) - photo: TAMU - JM

Bidens bipinnata (zoom) - Capitulum with aphids; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Bidens bipinnata (zoom) - Infructescence, late; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Bidens bipinnata (zoom) - Infructescence, early; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Bidens bipinnata (zoom) - Leaf; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Bidens laevis - Native, from Engeling WMA, TX. (whole plants) - photo: TAMU - JM

Bidens laevis - Native, from Engeling WMA, TX. (whole plant) - photo: TAMU - JM

Bidens laevis - Native, from Engeling WMA, TX. (head) - photo: TAMU - JM

Bidens laevis (zoom) - Capitula at anthesis; Pickering Ranch, Flynn, Leon County, Texas - photo: TAMU-HW

Bidens laevis (zoom) - Capitulum at anthesis, side view; Pickering Ranch, Flynn, Leon County, Texas - photo: TAMU-HW

Bidens laevis (zoom) - Capitulum, from rear with phyllaries; Pickering Ranch, Flynn, Leon County, Texas - photo: TAMU-HW

Bidens laevis (zoom) - Leaves at node; Pickering Ranch, Flynn, Leon County, Texas - photo: TAMU-HW

Bidens sp. - Native, from College Station, TX. (mature achenes) - photo: TAMU - JM

Bigelowia nuttallii (inflorescence - corymb of heads)

Bigelowia nuttallii - Native, from Wellborn, TX. ((Gutierrezia?); whole plant) - photo: TAMU - JM

Bigelowia nuttallii - Native, from Wellborn, TX. ((Gutierrezia?); inflorescence) - photo: TAMU - JM

Boltonia diffusa - Native, from College Station,TX. (head parts - BOTN 485)

Boltonia diffusa - inflorescence - photo: TAMU-HW

Boltonia diffusa - inflorescence post anthesis - photo: TAMU-HW

Boltonia diffusa - infructescence - photo: TAMU-HW

Boltonia diffusa (zoom) - inflorescence at anthesis - face view - College Station, Texas - photo: TAMU-HW

Bradburia hirtella - Native, from College Station,TX. (longitudinal section of head - BOTN 485)

Bradburia hirtella - Native, from College Station,TX. (head parts - BOTN 485)

Bradburia hirtella - Native, from Wellborn, TX. (head) - photo: TAMU - JM

Bradburia hirtella - inflorescence - face - photo: TAMU-HW

Bradburia hirtella - phyllaries - photo: TAMU-HW

Bradburia hirtella - leaf - photo: TAMU-HW

Bradburia hirtella (zoom) - capitulum - face view with disc and ray florets - photo: TAMU-HW

Cacalia atriplicifolia - capitula (discoid, no phyllaries) with bifid styles and brown androecia (note aphid for scale) - O - photo: TAMU-HW

Cacalia plantaginea - Native, from College Station, TX. (whole plant) - photo: TAMU - JM

Cacalia plantaginea - Native, from College Station, TX. (heads) - photo: TAMU - JM

Cacalia plantaginea - Native, from Navasota Flora. (whole plant) - photo: TAMU - JM

Cacalia plantaginea - Native, from Navasota Flora. (heads) - photo: TAMU - JM

Calendula officinalis (zoom) - Inflorescence; cultivated in herb garden - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Calendula officinalis (zoom) - Inflorescence from side, phyllaries; cultivated in herb garden - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Calendula officinalis from Kohler's Medicinal Plants

Calyptocarpus vialis - plants in flower - photo: TAMU-HW

Calyptocarpus vialis - inflorescence - front - photo: TAMU-HW

Calyptocarpus vialis - inflorescence - side - photo: TAMU-HW

Centaurea cineraria - flowers of dusty miller -- Shenandoah National Park, Madison Co., Virginia, USA. - photo: James Reveal

Centaurea macrocephala - Cultivated, from Univ. Wash. Med. plant Gar.. (whole plant) - photo: TAMU - JM

Centaurea nigrescens [id?] (zoom) - Inflorescence from side, phyllaries with pectinate tips; roadside, Stark County, Ohio - photo: TAMU-HW

Centaurea nigrescens [id?] (zoom) - Inflorescence above; roadside, Stark County, Ohio - photo: TAMU-HW

Centauria americana (zoom) - Capitulum at anthesis, side view; FM1948, Washington County, Texas - photo: TAMU-HW

Centauria americana (zoom) - Capitulum prior to anthesis, phyllaries; FM1948, Washington County, Texas - photo: TAMU-HW

Centauria americana (zoom) - Capitulum at anthesis, from above; FM1948, Washington County, Texas - photo: TAMU-HW

Centauria americana (zoom) - Capitulum at anthesis, from below; FM1948, Washington County, Texas - photo: TAMU-HW

Centauria americana - flowers of an American star-thistle -- near Musquiz, Coahuila, Mexico. - photo: James Reveal

Chaetopappa asteroides - Native, from College Station, TX. (whole plant) - photo: TAMU - JM

Chaetopappa asteroides - Native, from Wellborn, TX. (head parts - BOTN 485)

Chaetopappa asteroides - Native, from Wellborn, TX. (Head - BOTN 485)

Chaetopappa asteroides - Native, from Wellborn, TX. (Arenaria also) - photo: TAMU - JM

Chaetopappa asteroides (zoom) - Capitulum at anthesis, from front; Texas Cooperative Wildlife Collection Nature Trail, Brazos County - photo: TAMU-HW

Chaetopappa asteroides (zoom) - Capitulum at anthesis, from side with scale; Texas Cooperative Wildlife Collection Nature Trail, Brazos County - photo: TAMU-HW

Chaetopappa asteroides (zoom) - Plant with scale; Texas Cooperative Wildlife Collection Nature Trail, Brazos County - photo: TAMU-HW

Chamaemelum nobile - Cultivated. (whole plant) - photo: TAMU - JM

Chrysactinia mexicana - Cultivated, from National Wildflower Research Center, Austin, TX. (whole plants) - photo: TAMU - JM

Chrysactinia mexicana - Cultivated, from National Wildflower Research Center, Austin, TX. (mature heads) - photo: TAMU - JM

Chrysactinia mexicana - Cultivated, from National Wildflower Research Center, Austin, TX. (whole plants) - photo: TAMU - JM

Chrysactinia mexicana (zoom) - Plants in flower and fruit; cultivated, Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Chrysactinia mexicana (zoom) - Inflorescence, front view; cultivated, Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Chrysactinia mexicana (zoom) - Inflorescence, from side with phyllaries, pappus; cultivated, Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Chrysactinia mexicana (zoom) - Infructescence and achenes, from above; cultivated, Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Chrysactinia mexicana (zoom) - Achenes and pappus; cultivated, Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Chrysactinia mexicana (zoom) - Achenes and pappus, close; cultivated, Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Chrysanthemum cinerariifolium from Kohler's Medicinal Plants

Chrysanthemum inodorum from Kohler's Medicinal Plants

Chrysanthemum leucanthemum - Infructescence - photo: TAMU-HW

Chrysanthemum leucanthemum - inflorescence - photo: TAMU-HW

Chrysanthemum leucanthemum - Inflorescence - maturing disk florets - past anthesis - photo: TAMU-HW

Chrysanthemum marschallii from Kohler's Medicinal Plants

Chrysanthemum parthenium from Kohler's Medicinal Plants

Chrysanthemum roseum from Kohler's Medicinal Plants

Chrysothamnus nauseosus - Native, from Mesa Verde, CO. (whole plant) - photo: TAMU - JM

Chrysothamnus nauseosus - Native, from Mesa Verde, CO. (heads) - photo: TAMU - JM

Chrysothamnus nauseosus var. uintahensis - Uintah Basin rabbitbrush -- E of Fruitland, Duchesne Co., Utah, USA. - photo: James Reveal

Cichorium intybus - capitulum at anthesis - photo: TAMU-HW

Cirsium arvense (zoom) - Inflorescence from side, phyllaries;weed at Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Cirsium arvense (zoom) - mature capitula with fruit - weed in soybean field along Beech Road, Stark County, Ohio - photo: TAMU-HW

Cirsium arvense (zoom) - infructescence - weed in soybean field along Beech Road, Stark County, Ohio - photo: TAMU-HW

Cirsium arvense (zoom) - inflorescence - weed in soybean field along Beech Road, Stark County, Ohio - photo: TAMU-HW

Cirsium coloradense - Native, from Florissant Fossil Beds Nat'l. Monu., CO. (heads - side view) - photo: TAMU - JM

Cirsium coloradense - Native, from Florissant Fossil Beds Nat'l. Monu., CO. (heads - top view) - photo: TAMU - JM

Cirsium coloradense - Native, from Florissant Fossil Beds Nat'l. Monu., CO. (whole plant - reduced form) - photo: TAMU - JM

Cirsium engelmannii - Native, from College Station, TX. (head) - photo: TAMU - JM

Cirsium horridulum - Native, from College Station, TX. (white head) - photo: TAMU - JM

Cirsium horridulum - Native, from College Station, TX. (pink head) - photo: TAMU - JM

Cirsium horridulum - Native, from Brazos Co., TX. (pink head) - photo: TAMU - JM

Cirsium horridulum - Native, from College Station, TX. (white form) - photo: TAMU - JM

Cirsium horridulum - Native, from FLYNN, TX. (whole plant with botanist for scale) - photo: TAMU - JM

Cirsium horridulum - plant (taller than Toni Wilson) - Madison County, Texas (10 Apr 98) - photo: TAMU-HW

Cirsium horridulum - inflorescence - photo: TAMU-HW

Cirsium horridulum - Trophy plant - Flynn Bog (Leon County) - photo: TAMU-HW

Cirsium horridulum (zoom) - Plant in flower; Fort Boggy State Park, Leon County, Texas - photo: TAMU-HW

Cirsium horridulum (zoom) - Inflorescence from above; Fort Boggy State Park, Leon County, Texas - photo: TAMU-HW

Cirsium horridulum (zoom) - Developing inflorescence from the side; Fort Boggy State Park, Leon County, Texas - photo: TAMU-HW

Cirsium horridulum (zoom) - Developing inflorescence from the side; Fort Boggy State Park, Leon County, Texas - photo: TAMU-HW

Cirsium horridulum (zoom) - Inflorescences; Fort Boggy State Park, Leon County, Texas - photo: TAMU-HW

Cirsium horridulum (zoom) - Plant in flower woth scale (Toni Wilson); Fort Boggy State Park, Leon County, Texas - photo: TAMU-HW

Cirsium sp. - Native, from Gauss, TX. (head - butterfly--Pipevine Swallowtail) - photo: TAMU - JM

Cirsium sp. - Native, from Capulin Volcano, NM. (whole plant) - photo: TAMU - JM

Cirsium sp. - Native, from Monte Vista NWR, CO. (whole plant) - photo: TAMU - JM

Cirsium sp. - Native, from Monte Vista NWR, CO. (heads - butterfly--Cabbage White) - photo: TAMU - JM

Cirsium sp. - Native, from Monte Vista NWR, CO. (head - butterfly--Cabbage White) - photo: TAMU - JM

Cirsium sp. - Native, from Garden of the Gods, CO. (whole plant) - photo: TAMU - JM

Cirsium sp. - Native, from Garden of the Gods, CO. (heads) - photo: TAMU - JM

Cirsium sp. - Native, from Garden of the Gods, CO. (head close-up) - photo: TAMU - JM

Cirsium sp. - Native, from Garden of the Gods, CO. (whole plant) - photo: TAMU - JM

Cirsium sp. - Native, from Florissant Fossil Beds Nat'l. Monu., CO. (whole plant) - photo: TAMU - JM

Cirsium sp. - Native, from Florissant Fossil Beds Nat'l. Monu., CO. (head) - photo: TAMU - JM

Cirsium sp. - Native, from Florissant Fossil Beds Nat'l. Monu., CO. (head with skipper) - photo: TAMU - JM

Cirsium sp. - Native, from Florissant Fossil Beds Nat'l. Monu., CO. (head with skipper) - photo: TAMU - JM

Cirsium texanum - Native, from Navasota Flora. (butterfly--Pipevine Swallowtail) - photo: TAMU - JM

Cnicus benedictus from Kohler's Medicinal Plants

Conoclinium greggii (zoom) - Plants in flower; cultivated (as Eupatorium greggii ), Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Conoclinium greggii (zoom) - Plant in flower; cultivated (as Eupatorium greggii ), Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Conoclinium greggii (zoom) - Leaves; cultivated (as Eupatorium greggii ), Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Conoclinium greggii (zoom) - Capitula; cultivated (as Eupatorium greggii ), Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Conoclinium greggii (zoom) - Capitula from side; cultivated (as Eupatorium greggii ), Lady Bird Johnson Wildflower Center, Austin, Texas - photo: TAMU-HW

Conyza squarrosa from Kohler's Medicinal Plants

Coreopsis basalis - Native, from FLYNN, TX. (field) - photo: TAMU - JM

Coreopsis basalis - Native, from College Station,TX. (head parts - BOTN 485)

Coreopsis basalis (zoom) - Capitulum, front view; Camp Allen, Grimes County, Texas - photo: TAMU-HW

Coreopsis basalis (zoom) - Capitulum, from below with phyllaries; Camp Allen, Grimes County, Texas - photo: TAMU-HW

Coreopsis basalis (zoom) - Leaves; Camp Allen, Grimes County, Texas - photo: TAMU-HW

Coreopsis basalis - capitulum past anthesis with dimorphic phyllaries - photo: TAMU-HW

Coreopsis grandiflora - Native, from College Station, TX. (whole plant) - photo: TAMU - JM

Coreopsis grandiflora - Native, from College Station, TX. (head) - photo: TAMU - JM

Coreopsis grandiflora - inflorescence - photo: TAMU-HW

Coreopsis grandiflora - disc florets - photo: TAMU-HW

Coreopsis grandiflora - phyllaries - photo: TAMU-HW

Coreopsis lanceolata (zoom) - Inflorescence at early anthesis from the front, close; Rt. 21 West of Carlos, Grimes County, Texas - photo: TAMU-HW

Coreopsis lanceolata (zoom) - Disc florets at early anthesis from the front, close; Rt. 21 West of Carlos, Grimes County, Texas - photo: TAMU-HW

Coreopsis lanceolata (zoom) - Bimorphic phyllaries; Rt. 21 West of Carlos, Grimes County, Texas - photo: TAMU-HW

Coreopsis lanceolata (zoom) - Plant; Rt. 21 West of Carlos, Grimes County, Texas - photo: TAMU-HW

Coreopsis lanceolata (zoom) - Leaves; Rt. 21 West of Carlos, Grimes County, Texas - photo: TAMU-HW

Coreopsis lanceolata (zoom) - Inflorescence bud; Rt. 21 West of Carlos, Grimes County, Texas - photo: TAMU-HW

Coreopsis lanceolata (zoom) - Early infructescence; Rt. 21 West of Carlos, Grimes County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Capitulum from front; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Plant in flower; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Basal leaves; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Leaf; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Capitulum from front, close; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Capitulum and disk florets from side, close; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Capitulum from rear, phyllaries; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Bimorphic phyllaries - close; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Capitulum past anthesis from side; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Capitulum past anthesis from below; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis nuecensis (zoom) - Plants in flower; Texas Cooperative Wildlife Collection nature trail, Brazos County, Texas - photo: TAMU-HW

Coreopsis sp. - Native, from College Station, TX. (whole plant) - photo: TAMU - JM

Coreopsis tinctoria - Native, from College Station,TX. (longitudinal section of head - BOTN 485)

Coreopsis tinctoria - Native, from College Station,TX. (head parts - BOTN 485)

Coreopsis tripteris (zoom) - inflorescence from above, restored prairie area - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Coreopsis tripteris (zoom) - inflorescence from below (phyllaries), restored prairie area - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Coreopsis tripteris (zoom) - cauline leaves, restored prairie area - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Coreopsis tripteris (zoom) - plants with big bluestem in restored prairie area - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Cosmos bipinnatus (zoom) - inflorescence, cultivated; Briarwood Drive, Alliance, Stark County, Ohio - photo: TAMU-HW

Cosmos bipinnatus (zoom) - inflorescence -disc florets, cultivated; Briarwood Drive, Alliance, Stark County, Ohio - photo: TAMU-HW

Cosmos crithmifolius - flowers of a cosmos -- W of El Salto, Sierra Madre Occidental, Durango, Mexico. - photo: James Reveal

Cotula australis (zoom) - Infructescence from the side; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Infructescence from above; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Plant in flower with scale; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Leaves; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Inflorescence from above; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Inflorescence from above with scale; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Inflorescence from above, early anthesis; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Inflorescence from the side, style branches; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Inflorescence from the side, phyllaries; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Plant in flower with scale, close; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Infructescence from the side; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cotula australis (zoom) - Infructescence from above; weed of the Texas A&M campus (quad area), Brazos County, Texas - photo: TAMU-HW

Cynara cardunculus - Cultivated, from Univ. Wash. Med. plant Gar.. (head) - photo: TAMU - JM

Cynara cardunculus - Cultivated, from Univ. Wash. Med. plant Gar.. (heads) - photo: TAMU - JM

Cynara scolymus (zoom) - Plant in fruit; cultivated at Peaceable Kingdom Farm, Washington County, Texas - photo: TAMU-HW

Cynara scolymus (zoom) - Leaf; cultivated at Peaceable Kingdom Farm, Washington County, Texas - photo: TAMU-HW

Cynara scolymus (zoom) - Inflorescences; cultivated at Peaceable Kingdom Farm, Washington County, Texas - photo: TAMU-HW

Cynara scolymus (zoom) - Inflorescence from side, phyllaries; cultivated at Peaceable Kingdom Farm, Washington County, Texas - photo: TAMU-HW

Cynara scolymus (zoom) - Inflorescence from above, phyllaries; cultivated at Peaceable Kingdom Farm, Washington County, Texas - photo: TAMU-HW

Cynara scolymus (zoom) - Inflorescence from above; cultivated at Peaceable Kingdom Farm, Washington County, Texas - photo: TAMU-HW

Dendranthemum - Cultivated. ((formerly in Chrysanthemum); heads) - photo: TAMU - JM

Dracopis amplexicaulis (zoom) - Leaf; Weaver Ranch, Grimes County, Texas - photo: TAMU-HW

Dracopis amplexicaulis (zoom) - Capitulum, pre-anthesis; Weaver Ranch, Grimes County, Texas - photo: TAMU-HW

Dyssodia acerosa - Native, from Big Bend National Park. (whole plant) - photo: TAMU - JM

Echinacea angustifolia - Native, from College Station, TX. (whole plant) - photo: TAMU - JM

Echinacea angustifolia - Native, from College Station, TX. (head) - photo: TAMU - JM

Echinacea angustifolia (zoom) - Inflorescence; near dam of large pond at Bovay Boy Scout Ranch, Grimes County, Texas - photo: TAMU-HW

Echinacea angustifolia (zoom) - Basal leaves; near dam of large pond at Bovay Boy Scout Ranch, Grimes County, Texas - photo: TAMU-HW

Echinacea angustifolia (zoom) - Basal leaf; near dam of large pond at Bovay Boy Scout Ranch, Grimes County, Texas - photo: TAMU-HW

Echinacea atrorubens [id?] (zoom) - Plant in flower with scale (Monique Reed); near dam of large pond at Bovay Boy Scout Ranch, Grimes County, Texas - photo: TAMU-HW

Echinacea pallida - Plant in flower - Stark County, Ohio - photo: TAMU-HW

Echinacea pallida (zoom) - Plants in flower; along county road, sw corner of Gail Allen Ranch (Meadowside), Grimes County, Texas - photo: TAMU-HW

Echinacea pallida (zoom) - Inflorescence, side view; along county road, sw corner of Gail Allen Ranch (Meadowside), Grimes County, Texas - photo: TAMU-HW

Echinacea pallida (zoom) - Cauline leaves; along county road, sw corner of Gail Allen Ranch (Meadowside), Grimes County, Texas - photo: TAMU-HW

Echinacea pallida (zoom) - Peduncle, phyllaries; along county road, sw corner of Gail Allen Ranch (Meadowside), Grimes County, Texas - photo: TAMU-HW

Echinacea pallida (zoom) - Phyllaries, close; along county road, sw corner of Gail Allen Ranch (Meadowside), Grimes County, Texas - photo: TAMU-HW

Echinacea pallida (zoom) - Inflorescence, side view - close; along county road, sw corner of Gail Allen Ranch (Meadowside), Grimes County, Texas - photo: TAMU-HW

Echinacea purpurea - Cultivated. (white ray florets) - photo: TAMU - JM

Echinacea purpurea - Cultivated. (longitudinal section of head - BOTN 485)

Echinacea purpurea - Cultivated. (head parts - BOTN 485)

Echinacea purpurea (zoom) - inflorescences - Herb Garden - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Echinacea purpurea (zoom) - inflorescence past anthesis - Herb Garden - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Echinacea sp. - Cultivated. (head) - photo: TAMU - JM

Echinacea sp. - Native, from Navasota Flora. (head - close-up) - photo: TAMU - JM

Echinacea sp. - Native, from Navasota Flora. (mature) - photo: TAMU - JM

Echinacea sp. - Cultivated. (head) - photo: TAMU - JM

Echinacea sp. - Cultivated. (head close-up) - photo: TAMU - JM

Echinacea sp. - Cultivated. (head) - photo: TAMU - JM

Echinacea sp. - Native, from Wellborn, TX. (whole plants) - photo: TAMU - JM

Echinops persicus - Cultivated, from Univ. Wash. Med. plant Gar.. (head) - photo: TAMU - JM

Echinops persicus - Cultivated, from Univ. Wash. Med. plant Gar.. (whole plants) - photo: TAMU - JM

Eclipta prostrata (zoom) - Plant in flower; Madison County, Texas - photo: TAMU-HW

Eclipta prostrata (zoom) - Inflorescence from above (radiate - early anthesis); Madison County, Texas - photo: TAMU-HW

Eclipta prostrata (zoom) - Inflorescence, side view (phyllaries); Madison County, Texas - photo: TAMU-HW

Eclipta prostrata (zoom) - Inflorescence from above, ovaries developing (past anthesis); Madison County, Texas - photo: TAMU-HW

Eclipta prostrata (zoom) - Inflorescences; Madison County, Texas - photo: TAMU-HW

Eclipta prostrata (zoom) - Leaves; Madison County, Texas - photo: TAMU-HW

Eclipta prostrata (zoom) - Infructescence from above with fruit, chaff; Madison County, Texas - photo: TAMU-HW

Eclipta prostrata (zoom) - Infructescence from side with fruit, chaff; Madison County, Texas - photo: TAMU-HW

Eclipta prostrata (zoom) - Fruit in situ on receptacle subtended by bracts (chaff); Madison County, Texas - photo: TAMU-HW

Eclipta prostrata (zoom) - Fruit with scale; Madison County, Texas - photo: TAMU-HW

Elephantopus carolinianus (zoom) - Infructescence; Pickering Ranch, Flynn, Leon County, Texas - photo: TAMU-HW

Elephantopus carolinianus (zoom) - Capitula; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Elephantopus tomentosus [id not certain] - Native. (whole plant) - photo: TAMU - JM

Encelia stenophylla - flowers of slender-leaf brittlebush -- Sierra de Santa Clara, Baja Californa Sur, Mexico. - photo: James Reveal

Engelmannia pinnatifida - Native, from Navasota, TX. (whole plant) - photo: TAMU - JM

Engelmannia pinnatifida - Native, from Grimes County, TX. (whole plant) - photo: TAMU - JM

Engelmannia pinnatifida - Native, from Grimes County, TX. (head) - photo: TAMU - JM

Erigeron peregrinus - Native, from Federation Forest, WA. (whole plants) - photo: TAMU - JM

Erigeron peregrinus - Native, from Tipsoo Lake, Chinook Pass, WA. (whole plant) - photo: TAMU - JM

Erigeron philadelphicus - Inflorescence at early anthesis - Troyer's Hollow - Holmes County, Ohio - photo: TAMU-HW

Erigeron pygmaeus - pygmy fleabane -- near Belfort, Sweetwater Range, Mono Co., California, USA. - photo: James Reveal

Erigeron sp. - Native, from College Station, TX. (heads) - photo: TAMU - JM

Erigeron sp. - Native, from Mt. Evans, CO. (whole plant) - photo: TAMU - JM

Erigeron sp. - Native, from Wellborn, TX. (whole plants) - photo: TAMU - JM

Erigeron sp. - inflorescence - photo: TAMU-HW

Erigeron sp. - fleabane -- Tony Grove Lake, Cache Co., Utah, USA. - photo: James Reveal

Erigeron sp. [id not certain] - Native, from Zion National Park, UT. (whole plant) - photo: TAMU - JM

Erigeron sp. [id not certain] - Native, from Cumbres & Toltec RR. (whole plants) - photo: TAMU - JM

Erigeron sp. [id not certain] - Native, from Cumbres & Toltec RR. (head) - photo: TAMU - JM

Eupatorium capillifolium (zoom) - Plants in flower; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Eupatorium capillifolium (zoom) - Capitula; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Eupatorium coelestinum - Native, from College Station, TX. (whole plant) - photo: TAMU - JM

Eupatorium coelestinum - Native, from College Station, TX. (close-up) - photo: TAMU - JM

Eupatorium coelestinum (zoom) - Plant in flower; Conoco plant, Bryan, Brazos County, Texas - photo: TAMU-HW

Eupatorium coelestinum (zoom) - Capitula at anthesis; Conoco plant, Bryan, Brazos County, Texas - photo: TAMU-HW

Eupatorium coelestinum (zoom) - Leaf; Conoco plant, Bryan, Brazos County, Texas - photo: TAMU-HW

Eupatorium compositifolium - Native, from Engeling WMA, TX. (whole plant) - photo: TAMU - JM

Eupatorium compositifolium - Native, from Engeling WMA, TX. (branch) - photo: TAMU - JM

Eupatorium compositifolium (zoom) - plant in flower; sundew creek, Lick Creek Park, Brazos County, Texas (site overview) - photo: TAMU-HW

Eupatorium fistulosum (zoom) - Plant in flowre; Jackson Bog, Stark County, Ohio - photo: TAMU-HW

Eupatorium fistulosum (zoom) - plant in flower, restored prairie area - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Eupatorium fistulosum (zoom) - inflorescence, restored prairie area - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Eupatorium fistulosum (zoom) - capitulum, restored prairie area - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Eupatorium fistulosum (zoom) - capitula from above, restored prairie area - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Eupatorium fistulosum (zoom) - node with cauline leaves; restored prairie area - Quail Hollow State Park, Stark County, Ohio - photo: TAMU-HW

Eupatorium fistulosum (zoom) - with associates; restored prairie at the Stark Wilderness Center, Stark County, Ohio - photo: TAMU-HW

Eupatorium fistulosum (zoom) - plant in flower; restored prairie at the Stark Wilderness Center, Stark County, Ohio - photo: TAMU-HW

Eupatorium fistulosum (zoom) - vegetative shoot/nodes; restored prairie at the Stark Wilderness Center, Stark County, Ohio - photo: TAMU-HW

Eupatorium fistulosum (zoom) - capitula at anthesis; restored prairie at the Stark Wilderness Center, Stark County, Ohio - photo: TAMU-HW

Eupatorium Gregii - Images from the Texas A&M Campus Flora Project

Eupatorium maculatum (zoom) - plants in flower; marsh in northwestern Holmes County, Ohio - photo: TAMU-HW

Eupatorium maculatum (zoom) - capitula; marsh in northwestern Holmes County, Ohio - photo: TAMU-HW

Eupatorium maculatum (zoom) - leaves at node; marsh in northwestern Holmes County, Ohio - photo: TAMU-HW

Eupatorium perfoliatum (zoom) - Plant in flower; Jackson Bog, Stark County, Ohio - photo: TAMU-HW

Eupatorium perfoliatum (zoom) - Capitula - discoid; Jackson Bog, Stark County, Ohio - photo: TAMU-HW

Eupatorium perfoliatum (zoom) - node; open marsh, Holmes County, Ohio - photo: TAMU-HW

Eupatorium perfoliatum (zoom) - plant in flower; open marsh, Holmes County, Ohio - photo: TAMU-HW

Eupatorium serotinum - Native, from College Station, TX. (whole plant) - photo: TAMU - JM

Eupatorium serotinum - Native, from College Station, TX. (heads) - photo: TAMU - JM

Eupatorium serotinum - Native, from College Station,TX. (head parts and longitudinal section of head - BOTN 485)

Eupatorium serotinum - Native, from College Station,TX. (head parts and longitudinal section of head - BOTN 485)

Eurybia hemispherica (zoom) - Capitula past anthesis; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Eurybia hemispherica (zoom) - Capitulum past anthesis, close; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Eurybia hemispherica (zoom) - Perennial with rhizomes; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Eurybia hemispherica (zoom) - Capitulum at anthesis, close; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Euthamia leptocephala (zoom) - plant in flower, along Sundew Creek, Lick Creek Park; Brazos County, Texas (site overview) - photo: TAMU-HW

Euthamia leptocephala (zoom) - inflorescences, Sundew Creek, Lick Creek Park; Brazos County, Texas (site overview) - photo: TAMU-HW

Evax prolifera (zoom) - Infructescence, with E. verna; outcrop area along Longpoint road, Washington County, Texas - photo: TAMU-HW

Evax prolifera (zoom) - Plant in flower; from outcrop area along Longpoint road, Washington County, Texas - photo: TAMU-HW

Evax prolifera (zoom) - Infructescence, with E. verna; outcrop area along Longpoint road, Washington County, Texas - photo: TAMU-HW

Evax prolifera (zoom) - Infructescence, close; outcrop area along Longpoint road, Washington County, Texas - photo: TAMU-HW

Evax prolifera (zoom) - Plant comparison with E. verna; both from outcrop area along Longpoint road, Washington County, Texas - photo: TAMU-HW

Evax verna - Native, from Navasota Flora. (heads) - photo: TAMU - JM

Evax verna - Native, from Navasota Flora. (whole plant) - photo: TAMU - JM

Evax verna (zoom) - Infructescence, close; outcrop area along Longpoint road, Washington County, Texas - photo: TAMU-HW

Evax verna (zoom) - Plant with scale; Pleasant Hill Cemetery, Grimes County, Texas (site overview) - photo: TAMU-HW

Evax verna (zoom) - Inflorescence; Pleasant Hill Cemetery, Grimes County, Texas (site overview) - photo: TAMU-HW

Fleischmannia incarnata (zoom) - Capitula; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Fleischmannia incarnata (zoom) - Leaves; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Fleischmannia incarnata (zoom) - Capitulum; Thornberry Ranch, Trinity River bottoms, eastern Madison County, Texas (site overview) - photo: TAMU-HW

Flourensia cernua - Native, from Big Bend National Park. (flowers) - photo: TAMU - JM

Gaillardia aestivalis - Native, from College Station, TX. (head) - photo: TAMU - JM

Gaillardia aestivalis - Native, from College Station, TX. (whole plant) - photo: TAMU - JM

Gaillardia aestivalis - Native, from College Station,TX. (longitudinal section of head - BOTN 485)

Gaillardia aestivalis - Native, from College Station,TX. (head parts - BOTN 485)

Gaillardia amblyodon - Native, from Hilltop Lakes, TX. (head) - photo: TAMU - JM

Gaillardia pulchella - Native, from College Station, TX. (head) - photo: TAMU - JM

Gaillardia pulchella - Native, from Navasota Flora. (head) - photo: TAMU - JM

Gaillardia pulchella - Native, from Hilltop Lakes, TX. (head) - photo: TAMU - JM

Gaillardia pulchella - Cultivated, from National Wildflower Research Center, Austin, TX. (field) - photo: TAMU - JM

Gaillardia pulchella - Native, from College Station,TX. (Disk florets and achene - BOTN 485)

Gaillardia pulchella - Native, from College Station,TX. (head parts - BOTN 485)

Gaillardia pulchella - Native, from College Station,TX. (longitudinal section of head - BOTN 485)

Gaillardia pulchella (zoom) - fruit head with achenes and pappus - College Station, Texas - photo: TAMU-HW

Gaillardia suavis - Native, from Serpentine outcrop, Gillespie Co., TX. (head) - photo: TAMU - JM

Gazania Rigens - Images from the Texas A&M Campus Flora Project

Grindelia robusta - Cultivated, from Univ. Wash. Med. plant Gar.. (whole plant) - photo: TAMU - JM

Grindelia sp. - Native, from Garden of the Gods, CO. (whole plant) - photo: TAMU - JM

Grindelia sp. - Native, from Garden of the Gods, CO. (head) - photo: TAMU - JM

Grindelia sp. - Native, from Florissant Fossil Beds Nat'l. Monu., CO. (whole plant) - photo: TAMU - JM

Gutierrezia sarothrae [id not certain] - Native, from Florissant Fossil Beds Nat'l. Monu., CO. (whole plant) - photo: TAMU - JM

Gutierrezia texana var. texana (zoom) - Leaf base, node;Peach Creek Preserve, Brazos County, Texas - photo: TAMU-HW

Gutierrezia texana var. texana (zoom) - Infructescences;Peach Creek Preserve, Brazos County, Texas - photo: TAMU-HW

Gutierrezia texana var. texana (zoom) - Infructescences, close;Peach Creek Preserve, Brazos County, Texas - photo: TAMU-HW

Gutierrezia texana var. texana (zoom) - Receptacle, achenes; Peach Creek Preserve, Brazos County, Texas - photo: TAMU-HW

Gynura aurantiaca - Cultivated. (whole plant) - photo: TAMU - JM

Gynura aurantiaca - Cultivated. (head) - photo: TAMU - JM

Helenium amarum - Native, from College Station,TX. (longitudinal section of head - BOTN 485)

Helenium autumnale (zoom) - Infructescence; Jackson Bog, Stark County, Ohio - photo: TAMU-HW

Helenium autumnale (