Amorpha roemerana Scheele (Texas amorpha) -- Distribution: Bandera, Bexar, Comal, Gillespie, Hays, Kendall, Kerr, Medina, Travis & Uvalde Cos. Comments: Category 3C References: Mahler, 1982a; Mahler, 1988; Vines, 1960*; Wilbur, 1975

Astragalus crassicarpus Nutt. var. berlandieri Barneby (Berlandier ground-plum) -- Distribution: Kerr & Gillespie to Washington & Victoria Cos. in southcentral Texas (Barneby, 1964) References: Barneby, 1964

Astragalus mollissimus Torr. var. coryi Tidest. (Cory's woolly locoweed) -- Distribution: Crockett, Reagan, Sterling & Upton Cos. References: Barneby, 1964

Astragalus mollissimus Torr. var. marcidus (Rydb.) B. L. Turner (withered woolly loco) -- Distribution: Dallam, Jeff Davis & Presidio Cos. Comments: Category 2 References: Barneby, 1964

Astragalus nuttallianus A. DC. var. pleianthus (Shinners) Barneby -- Distribution: much of western two-thirds of Texas References: Barneby, 1964

Astragalus reflexus T. & G. (Texas milk-vetch) -- Distribution: eastern half of Texas References: Barneby, 1964

Astragalus wrightii Gray (Wright's milk-vetch) -- Distribution: Edwards Plateau & Lampasas Cutplain References: Barneby, 1964

Caesalpinia brachycarpa (Gray) Fisher -- Distribution: Crockett, Edwards, and Kinney cos. References: Isely, 1975; Mahler, 1981e

Dalea bartonii Barneby (Cox's dalea) -- Distribution: Brewster Co. Comments: Category 2 References: Barneby, 1977*; Howell, 1986b

Dalea obovata (T. & G.) Shinners (stinking prairieclover) -- Distribution: mostly coastal plain of south and southeast Texas References: Barneby, 1977*

Dalea reverchonii (Wats.) Shinners (Comanche peak prairieclover) -- Distribution: Hood, Parker & and Wise Cos. Comments: Category 2 References: Barneby, 1977*; Mahler, 1984

Dalea sabinalis (Wats.) Shinners (Sabinal prairieclover) -- Distribution: Bandera, Uvalde & and Val Verde Cos. Comments: Category 2 References: Barneby, 1977*; Mahler, 1985b

Dalea tenuis (Coult.) Shinners (Stanfield prairieclover) -- Distribution: widespread in eastern two-thirds of state References: Barneby, 1977*; Shinners, 1949b

Desmanthus reticulatus Benth. (netleaf bundleflower) -- Distribution: Bexar, Comal, Gonzales, Kerr, Live Oak, San Patricio, Travis, Uvalde & Wilson Cos. References: Luckow, 1993*; Turner, 1959

Galactia canescens Benth. (hoary milkpea) -- Distribution: Aransas, Bastrop, Brooks, Calhoun, Cameron, Gonzales, Guadalupe, Hidalgo, Karnes, Kenedy, Kerr, Medi na, Nueces, Starr & Willacy Cos. References: Turner, 1959

Galactia heterophylla Gray -- Distribution: South Texas Plains, Llano Uplift References: Enquist, 1987a*; Turner, 1959

Galactia texana (Scheele) Gray (Texas milkpea) -- Distribution: Bandera, Bexar, Comal, Kinney, Real, Travis, Uvalde, Val Verde & Zavala Cos. Comments: also in Mexico? References: Turner, 1959

Hoffmannseggia tenella Tharp & L. O. Wms. (slender rushpea) -- Distribution: Kleberg & Nueces Cos. Comments: Endangered References: Isely, 1975; Mahler, 1982c*; Poole & Riskind, 1987*

Lupinus subcarnosus Hook. (Texas bluebonnet) -- Distribution: southeast Texas Comments: reported from LA (MacRoberts, 1984) References: Niehaus, Ripper & Savage, 1984*; Turner, 1959

Lupinus texensis Hook. (Texas bluebonnet) -- Distribution: eastern half of Texas Comments: reported from LA (MacRoberts, 1984) References: Enquist, 1987a*; Niehaus, Ripper & Savage, 1984*

Pediomelum cyphocalyx (Gray) Rydb. (turnip-root scurfpea) -- Distribution: Bandera, Bexar, Blanco, Burnet, Comal, Coryell, Gillespie, Hamilton, Hays, Kendall, Kerr, Lampasas, Parker & Wise Cos. References: Enquist, 1987a*; Grimes, 1990; Rickett, 1970*; Turner, 1959

Pediomelum hypogaeum (T. & G.) Rydb. var. scaposum (Gray) Grimes -- Distribution: Blanco, Comanche, Gillespie, Hood, Johnson, Kendall, Kerr, Lampasas, Mills, Tarrant, Travis & Willia mson Cos. Comments: reported from AR (Orzell & Bridges, 1987) References: Grimes, 1990; Orzell & Bridges, 1987

Pediomelum latestipulatum (Shinners) Mahler var. appressum (Ockendon) Gandhi & L. E. Brown -- Distribution: Bexar, Blanco, Burnet, Caldwell, Gonzales, Hays, Kerr, Travis & Williamson Cos.; also Pecos Co.? References: Grimes, 1990

Tephrosia lindheimeri Gray (Lindheimer's tephrosia) -- Distribution: Central Mineral Basin, South Texas Plains References: Agilvsgi, 1984*; Enquist, 1987a*; Niehaus, Ripper & Savage, 1984*

Trifolium bejariense Moric. (Bexar clover) -- Distribution: post oak belt References: Turner, 1959

Vicia ludoviciana Nutt. var. laxiflora Shinners -- Distribution: Edwards Plateau to northeast Texas

Quercus buckleyi Dorr & Nixon (Texas oak, Spanish red oak) -- Distribution: Edwards Plateau References: Dorr & Nixon, 1985

Quercus graciliformis C. H. Mull. (Chisos oak) -- Distribution: Chisos Mts., Brewster Co. Comments: Category 3C References: Powell, 1988*

Corydalis curvisiliqua Engelm. var. curvisiliqua (curvepod corydalis) -- Distribution: central & west Texas References: Warnock, 1977a*

Corydalis micrantha (Engelm.) Gray var. texensis (G. Ownbey) Shinners (Texas corydalis) -- Distribution: south coastal Texas

Bartonia texana Correll (Texas screwstem) -- Distribution: Hardin, Jasper, Nacogdoches, Newton, Polk, San Augustine, San Jacinto & Tyler Cos. Comments: Category 3C References: Correll, 1966c*; Correll & Correll, 1975*; Nixon, 1979; Nixon & Ward, 1981*

Centaurium glanduliferum (Correll) B. L. Turner -- Distribution: Brewster, Pecos & Terrell Cos. References: Turner, 1993a

Phacelia integrifolia Torr. var. texana (J. Voss) Atwood (gyp phacelia) -- Distribution: Trans Pecos References: Warnock, 1970*

Phacelia laxa Small (coast phacelia) -- Distribution: southeast Texas

Herbertia lahue (Mol.) Goldblatt (celestials) -- Distribution: south Texas References: Ajilvsgi, 1979*, as Alophia drummondii; Goldblatt, 1976

Juncus texanus Engelm. (Texas rush) -- Distribution: central & north Texas

Brazoria arenaria Lundell (sand brazoria) -- Distribution: Aransas, Brooks, Hidalgo, Jim Hogg, Jim Wells, Kenedy, Kleberg, Refugio References: Lundell, 1969*; Rickett, 1970*; Shinners, 1953a

Brazoria pulcherrima Lundell (Centerville brazos-mint) -- Distribution: Anderson, Freestone, Houston, Leon & Robertson Cos. Comments: Category 3C References: Lundell, 1968; Lundell, 1969*; Mahler, 1979a; Mahler, 1980d

Brazoria truncata (Benth.) Engelm. & Gray (bluntsepal brazoria) -- Distribution: Anderson, Atascosa, Austin, Bastrop, Bexar, Burnet, Caldwell, Colorado, Dewitt, Fayette, Goliad, Gon zales, Guadalupe, Karnes, Lee, Llano, Refugio, Robertson, San Patricio, Victoria & Wilson Cos. References: Lundell, 1969*; Shinners, 1953a

Hedeoma molle Torr. -- Distribution: Brewster, Jeff Davis & Presidio Cos. Comments: Category 3C

Hedeoma pilosum Irving (Old Blue pennyroyal) -- Distribution: Brewster Co. Comments: Category 2 References: Irving, 1970; Miller, 1984b

Monarda viridissima Correll -- Distribution: Bastrop, Caldwell, Guadalupe & Wilson Cos.; also Colorado and/or Lavaca Co. References: Turner, 1994b

Rhododon ciliatus (Benth.) Epling. (Texas hedeoma) -- Distribution: Anderson, Aransas, Austin, Burleson, Leon, Limestone, Milam, Montgomery, Refugio, Robertson, Smith, Van Zandt & Waller Cos. Comments: Category 3C References: Irving, 1980

Salvia engelmannii Gray (Engelmann's sage) -- Distribution: Blanco, Comal, Coryell, Denton, Erath, Gillespie, Hamilton, Hays, Hood, Johnson, Kendall, Kerr, Kimb le, Tarrant, Travis, Uvalde & Val Verde Cos. References: Enquist, 1987a*

Salvia penstemonoides Kunth & Bouche (big red sage) -- Distribution: Bandera, Bexar, Gillespie, Guadalupe, Kendall, Kerr, Real & Wilson Cos; introduced into Travis Co. Comments: Category 2 References: Enquist, 1987b

Scutellaria laevis Shinners (smoothstem skullcap) -- Distribution: Culberson & Hudspeth Cos. Comments: Category 2 References: Burgess & Northington, 1981; Higgins, 1989; Shinners, 1962; Turner, 1994a

Allium canadense L. var. ecristatum M. E. Jones -- Distribution: central coastal plains

Allium coryi M. E. Jones (Cory's onion) -- Distribution: Brewster, Jeff Davis, Pecos, Presidio & Terrell Cos. References: Ownbey, 1950; Rickett, 1970*

Allium elmendorfii M. Ownbey (Elmendorf's onion) -- Distribution: Atascosa, Bee, Bexar, Kenedy, Llano, Nueces, San Patricio, Refugio & Wilson Cos. References: Ownbey, 1950

Allium perdulce S. V. Fraser var. sperryi M. Ownbey -- Distribution: Brewster, Culberson, Hudspeth, Jeff Davis, Presidio & Reeves Cos. Comments: Category 3C; also Oklahoma? References: Ownbey, 1950

Allium runyonii M. Ownbey (Runyon's onion) -- Distribution: Brooks, Duval, Jim Hogg, Kenedy, Nueces, San Patricio, Webb, Willacy & Zapata Cos. References: Ownbey, 1950

Nolina arenicola Correll (sand sacahuista) -- Distribution: Culberson, El Paso (?) & Hudspeth Cos. Comments: Category 2 References: Burgess & Northington, 1981; Correll, 1968; Poole, 1989b; Powell, 1988*

Nolina lindheimeriana (Scheele) Wats. (Lindheimer's nolina) -- Distribution: Edwards Plateau References: Lynch, 1981*

Smilax renifolia Small (kidneyleaf greenbriar) -- Distribution: Edwards Plateau

Yucca campestris McKelvey (plains yucca) -- Distribution: High Plains, northern Trans Pecos Comments: Y. elata X Y. constricta hybrid? (Martin & Hutchins, 1981) References: Vines, 1960*

Yucca necopina Shinners (Glen Rose yucca) -- Distribution: Somervell County

Yucca pallida McKelvey (pale yucca) -- Distribution: Lampasas Cutplain

Yucca reverchonii Trel. (San Angelo yucca) -- Distribution: northwestern Edwards Plateau

Yucca rupicola Scheele (twistleaf yucca) -- Distribution: Edwards Plateau References: Enquist, 1987a*; Lynch, 1981*; Rickett, 1970*; Vines, 1960*

Yucca tenuistyla Trel. (whiterim yucca) -- Distribution: Edwards Plateau, South Texas Plains

Mentzelia saxicola Thomps. & Zavortink -- Distribution: El Paso, Hudspeth & Presidio Cos.

Buddleja racemosa Torr. (wand butterfly-bush) -- Distribution: Edwards Plateau References: Lynch, 1981*; Schulz, 1922*; Vines, 1960*

Spigelia texana (T. & G.) A. DC. (Texas pink-root) -- Distribution: Edwards Plateau, South Texas Plains Comments: Category 3C; perhaps not distinct from S. lindheimeri Gray, which ranges into Mexico

Callirhoe scabriuscula Robins. (Texas poppymallow) -- Distribution: Coke, Mitchell, and Runnels Cos. Comments: Endangered References: Dorr, 1990; Poole & Riskind, 1987*; Poole, 1990

Hibiscus dasycalyx Blake & Shiller (Neches River rosemallow) -- Distribution: Cherokee, Harrison, Houston & Trinity Cos. Comments: Category 2 References: Blake, 1958*; Correll & Correll, 1975*; Kennedy & Poole, 1990; Nixon & Cunningham, 1985*

Sphaeralcea lindheimeri Gray (woolly globemallow) -- Distribution: South Texas References: Rickett, 1970*

Abronia ameliae Lundell (Amelia's sand-verbena) -- Distribution: Brooks, Hidalgo, Jim Hogg, Kenedy, Kleberg, Live Oak & Starr Cos. References: Galloway, 1975; Reed, 1969; Rickett, 1970*

Abronia macrocarpa Galloway (large-fruited sand-verbena) -- Distribution: Freestone, Leon, & Robertson Cos. Comments: listed endangered species References: Corlies, 1991*; Galloway, 1972; Galloway, 1975; Kennedy et al., 1990; Poole & Riskind, 1987*; USFWS, 1990*

Acleisanthes wrightii (Gray) B. & H. (Wright's trumpets) -- Distribution: Pecos, Reeves (H), Terrell & Val Verde Counties References: Reed, 1969; Smith, 1975; Smith, 1976

Mirabilis gigantea (Standl.) Shinners (giant four-o'clock) -- Distribution: Dallas, Denton, Ellis, Johnson, Lavaca, McLennan,Parker, Sutton, Tarrant, Washington & Wise Cos. References: Reed, 1969; Turner, 1993b

Gaura villosa Torr. subsp. parksii (Munz) Raven & Gregory (Parks' gaura) -- Distribution: Atascosa, Bexar, Dimmit, Duval, Frio, Guadalupe, Jim Hogg, Medina, Starr, Wilson, Zapata & Zavala Co s. References: Raven & Gregory, 1972*

Spiranthes parksii Correll (Navasota ladies'-tresses) -- Distribution: Brazos, Burleson, Freestone, Grimes, Jasper, Leon, Madison, Robertson & Washington Cos. Comments: Endangered References: Catling & McIntosh, 1979; Mahler, 1980g; Poole & Riskind, 1987*; Wilson & Ajilvsgi, 1983

Oxalis drummondii Gray (Drummond's wood-sorrel) -- Distribution: Edwards Plateau & South Texas Plains References: Denton, 1973; Enquist, 1987a*; Tull & Miller, 1981*

Argemone aurantiaca G. Ownbey -- Distribution: south-central Texas

Bouteloua kayi Warnock (Kay's grama) -- Distribution: Brewster Co. References: Powell, 1994; Warnock, 1955*

Bromus texensis (Shear.) Hitchc. (Texas brome) -- Distribution: Rio Grande Plains, Edwards Plateau; Aransas, Bexar, Duval, Goliad, Karnes, Nueces, San Patricio & Tr avis Cos. Comments: Category 3C References: Gould, 1975*; Silveus, 1933*

Chloris texensis Nash (Texas windmill-grass) -- Distribution: Brazoria, Brazos (H), Chambers, Galveston, Harris, Hidalgo (?), Nueces & Refugio Counties Comments: Category 2 References: Gould & Box, 1965*; Silveus, 1933*

Digitaria texana Hitchc. (Texas crabgrass) -- Distribution: Rio Grande Plains, Coastal Plains References: Gould & Box, 1965*; Gould, 1975; Lonard, 1993

Muhlenbergia involuta Swallen (canyon muhly; hybrid muhly) -- Distribution: Edwards Plateau References: Gould, 1975*; Silveus, 1933*

Muhlenbergia lindheimeri Hitchc. (Lindheimer muhly) -- Distribution: Edwards Plateau References: Gould, 1975*; Silveus, 1933*

Muhlenbergia villosa Swallen (hairy muhly) -- Distribution: Trans Pecos, High Plains, Edwards Plateau Comments: gypseous sites References: Morden & Hatch, 1987; Powell, 1994*

Panicum nodatum Hitch. & Chase (Sarita dichanthelium) -- Distribution: South Texas Comments: also Mexico?; see Silveus, 1933 References: Gould & Box, 1965*; Lonard, 1993*; Silveus, 1933*

Setaria firmula (Hitchc. & Chase) Pilger (knotgrass) -- Distribution: Rio Grande Plains References: Gould, 1975*; Lonard, 1993; Silveus, 1933*

Sporobolus tharpii Hitchc. (Padre Island dropseed) -- Distribution: Rio Grande Plains, Coastal Plains References: Gould, 1975*; Lonard, 1993*; Silveus, 1933*

Tridens buckleyanus (L. H. Dewey) Nash (Buckley tridens) -- Distribution: Bandera, Bexar, Hays, Kendall, Kinney, Medina, San Saba & Travis Cos. References: Gould, 1975; Silveus, 1933*

Tridens congestus (L. H. Dewey) Nash (pink tridens) -- Distribution: Blackland and Coastal Prairies Comments: easily mistaken for T. albescens References: Gould, 1975*; Silveus, 1933*

Vaseyochloa multinervosa Hitchc. (Texasgrass) -- Distribution: Rio Grande Plains References: Hitchcock, 1950*; Lonard, 1993*; Silveus, 1933*

Willkommia texana Hitchc. (Texas willkommia) -- Distribution: South Texas Plains, Coastal Plains Comments: Category 3C References: Gould, 1975*; Silveus, 1933*

Zizania texana Hitchc. (Texas wild-rice) -- Distribution: San Marcos River, Hays Co. Comments: Endangered References: Gould, 1975*; Poole & Riskind, 1977*; Silveus, 1933*

Gilia ludens Shinners -- Distribution: Duval, Jim Hogg, Jim Wells, Live Oak, Webb Cos.

Phlox drummondii Hook. subsp. tharpii Wherry (Tharp's phlox) -- Distribution: South Texas Plains

Phlox nivalis Lodd. subsp. texensis Lundell (Texas trailing phlox) -- Distribution: Hardin, Polk & Tyler Cos. Comments: Endangered` References: Ajilvsgi, 1979*; Mahler, 1980c; Poole & Riskind, 1987*

Phlox pilosa L. subsp. latisepala Wherry (rough phlox) -- Distribution: Edwards Plateau

Phlox pilosa L. subsp. riparia Wherry (Texas phlox) -- Distribution: Edwards Plateau

Phlox roemeriana Scheele (golden-eye phlox) -- Distribution: Edwards Plateau, High Plains References: Enquist, 1987a*; Niehaus, Ripper & Savage, 1984*; Rickett, 1970*

Eriogonum nealleyi Coult. (Irion wildbuckwheat) -- Distribution: Coke, Howard, Irion, Pecos, Reagan, Runnels & Sterling Cos. Comments: Category 3C References: Reveal, 1968; Rowell, 1983a

Eriogonum suffruticosum Wats. (bushy wildbuckwheat) -- Distribution: Brewster, Pecos & Presidio Cos. References: Clark & Powell, 1983c; Powell, 1988*; Reveal, 1968

Eriogonum tenellum Torr. var. ramosissimum Benth. (Basin buckwheat) -- Distribution: Burnet, Gillespie, Llano, & Mason Cos. References: Walters & Wyatt, 1982

Polygonella parksii Cory (Parks' jointweed) -- Distribution: post oak belt; Atascosa, Bexar, Burleson, Guadalupe, Leon, Robertson & Wilson Cos. Comments: Category 3C References: Cory, 1937; Horton, 1963; Mahler, 1980a; Mahler, 1981a*

Polygonum striatulum Robins. -- Distribution: Brooks, Kleberg Cos. Comments: Category 3C References: Jones, S. D. 1994??

Polygonum texense M. C. Johnston -- Distribution: Andrews, Bexar, Borden, Crockett, Garza, Harris, Howard, Lubbock, Sutton, Taylor, Tom Green & Val Ve rde Cos. Comments: Category 3C References: Mahler, 1980b; Mahler, 1981a*

Rumex spiralis Small (winged dock) -- Distribution: Rio Grande Plains Comments: Category 3C References: Jones, 1977

Potamogeton clystocarpus Fern. (Little Aguja pondweed) -- Distribution: Jeff Davis Co. Comments: Endangered References: Correll & Correll, 1975*; Fernald, 1932; Haynes, 1974; Poole & Riskind, 1977*; Rowell, 1983

Anemone edwardsiana Tharp var. edwardsiana (canyon anemone) -- Distribution: Edwards Plateau Comments: Category 3C References: Enquist, 1987a*

Anemone edwardsiana Tharp var. petraea Correll (Edge Falls anemone) -- Distribution: Bandera & Kendall Cos. Comments: Category 2 References: Correll, 1968

Aquilegia chrysantha Gray var. hinckleyana (Munz) Lott (Hinckley's columbine) -- Distribution: Presidio Co. Comments: Category 2 References: Clark & Powell, 1973a; Lott, 1979; Lott, 1985; Warnock, 1977a*

Clematis texensis Buckl. (scarlet clematis) -- Distribution: Bandera, Blanco, Kendall, Kerr, Llano, Medina & Travis Cos. References: Ajilvsgi, 1979*; Enquist, 1987a*; Rickett, 1970*; Tull & Miller, 1991; Vines, 1960*

Thalictrum texanum (Gray) Small (Houston meadow-rue) -- Distribution: Brazos, Gonzales, Hardin, Harris & Waller Cos. Comments: Category 2 References: Mahler, 1983*

Condalia hookeri M. C. Johnst. var. edwardsiana (Cory) M. C. Johnst. (Edwards plateau capul negro) -- Distribution: Edwards Co. Comments: Category 2 References: Cory, 1947; Poole, 1989d

Crataegus anamesa Sarg. -- Distribution: south-central Texas Comments: Submerged in C. viridis L. by some auth.; see Hatch et al., 1990 References: Vines, 1960*

Crataegus berberifolia T. & G. var. edita (Sarg.) Palmer (Marshall hawthorn) -- Distribution: east Texas Comments: Category 3C References: Nixon & Cunningham, 1985*; Vines, 1960*

Crataegus brazoria Sarg. (Brazoria hawthorn) -- Distribution: east Texas, Blackland prairies Comments: Submerged in C. mollis Scheele by some auth.; see Hatch et al., 1990 References: Vines, 1960*

Crataegus cherokeensis Sarg. (Cherokee hawthorn) -- Distribution: east Texas Comments: Submerged in C. crusgalli L. by some auth.; see Hatch et al., 1990 References: Nixon & Cunningham, 1985*; Vines, 1960*

Crataegus poliophylla Sarg. (rosemary hawthorn) -- Distribution: south-central Texas Comments: Submerged in C. viridis L. by some auth.; see Hatch et al., 1990 References: Vines, 1960*

Crataegus stenosepala Sarg. (narrow-sepal hawthorn) -- Distribution: south-central Texas Comments: Category 3B; submerged in C. viridis L. by some auth.; see Hatch et al., 1990 References: Vines, 1960*

Crataegus sublobulata Sarg. (St. Augustine hawthorn) -- Distribution: east Texas Comments: Submerged in C. crusgalli L. by some auth.; see Hatch et al., 1990 References: Nixon & Cunningham, 1985*; Vines, 1960*

Crataegus sutherlandensis Sarg. (Sutherland hawthorn) -- Distribution: south Texas Comments: Category 3B; submerged in C. viridis L. by some auth.; see Hatch et al., 1990 References: Vines, 1960*

Crataegus texana Buckl. (Texas hawthorn) -- Distribution: coastal Texas References: Nixon & Cunningham, 1985*; Vines, 1960*

Crataegus viburnifolia Sarg. (viburnum hawthorn) -- Distribution: south-central Texas Comments: Submerged in C. mollis Scheele by some auth.; see Hatch et al., 1990 References: Vines, 1960*

Crataegus viridis L. var. desertorum (Sarg.) Keeney & Enquist -- Distribution: Bandera & Uvalde Cos. Comments: Submerged in C. viridis L. by some auth.; see Hatch et al., 1990 References: Keeney & Enquist, 1990*; Vines, 1960*

Crataegus warneri Sarg. (Warner's hawthorn) -- Distribution: Anderson, Cherokee, Franklin, Freestone, Houston, Smith, Upshur, Walker & Wood Cos. References: Mahler, 1985c; Nixon & Cunningham, 1985*; Vines, 1960*

Prunus havardii (W. Wight) W. Wight (Havard plum) -- Distribution: Brewster, Crockett & Presidio Cos. Comments: Category 3C References: Powell, 1988*; Vines, 1960*

Prunus minutiflora Engelm. (Texas almond) -- Distribution: Bexar, Burnet, Frio, Irion, Kimble, Kinney, Live Oak, Mason, McMullen, Medina, Travis, Uvalde, Val V erde, Williamson & Zavala Cos. Comments: Category 3C References: Enquist, 1987a*; Lynch, 1981*; Powell, 1988*; Vines, 1960*

Prunus murrayana E. J. Palmer (Murray's plum) -- Distribution: Brewster, Culberson & Jeff Davis Cos. Comments: Category 3C References: Powell, 1988*; Simpson, 1988; Vines, 1960*

Prunus texana Dietr. (Texas peachbush) -- Distribution: Aransas, Atascosa, Bastrop, Bexar, Brooks, Gonzales, Hidalgo, Kenedy, Kleberg, Llano, Mason, Starr, Victoria, & Wilson Cos. Comments: Category 3C References: Enquist, 1987a*; Everitt & Drawe, 1993*; Mason, 1913

Rubus nessianus Bailey (Ness dewberry) -- Distribution: east Texas Comments: Included by some auth. in R. lucidus Rydb.; see Hatch et al., 1990 References: Vines, 1960*

Rubus trivialis Michx. var. duplaris (Shinners) Mahler -- Distribution: east central texas Comments: Category 3C. Included by some auth. in R. riograndis Bailey; see Hatch et al., 1990 References: Mahler, 1979b

Hedyotis butterwickiae (Terrell) Nesom (Butterwick's bluets) -- Distribution: Brewster Co. Comments: Category 2 References: Nesom & Vorobik, 1988; Terrell, 1979*

Hedyotis correllii W. H. Lewis (Correll's bluets) -- Distribution: Zapata Co. Comments: Category 2 References: Lewis, 1972*; Terrell, 1985

Hedyotis croftiae (Britt. & Rusby) Shinners (Croft's bluets) -- Distribution: Duval, Jim Wells & McMullen Cos. Comments: check LL, TEX for additional records

Hedyotis greenmanii Fosberg (Greenman's bluets) -- Distribution: Bee, Dewitt, Jim Wells, Karnes, Nueces, Refugio, San Patricio & Travis Cos.

Zanthoxylum parvum Shinners (Shinners' tickle-tongue) -- Distribution: Brewster & Jeff Davis Cos. Comments: Category 1 References: Poole, 1989e; Porter, 1976; Powell, 1988*; Shinners, 1956*

Philadelphus ernestii Hu (canyon mock-orange) -- Distribution: Blanco, Comal, Hays, Kendall & Travis Cos. Comments: Category 2 References: Enquist, 1987a*; Hu, 1954-1956; Lynch, 1981; Mahler, 1981d

Philadelphus texensis Hu (Texas mock-orange) -- Distribution: Bandera, Comal, Edwards, Kendall, Medina, Real & Uvalde Cos. Comments: Category 3C References: Hu, 1954-1956; Mahler, 1982b

Agalinis edwardsiana Penn. (plateau gerardia) -- Distribution: Bastrop (?), Bexar, Comal, Edwards, Hays, Kerr & Travis Cos. References: Enquist, 1987a*

Agalinis navasotensis Dubrule & Canne Hilliker (Navasota false-foxglove) -- Distribution: Grimes Co. References: Canne-Hilliker & Dubrule, 1993*

Castilleja ciliata Penn. (fringed paintbrush) -- Distribution: Jeff Davis Co. (Mt. Livermore) Comments: Category 2; Nesom (1992) submerged this taxon within C. wootonii Standl. References: Clark & Powell, 1983b; Lockwood, 1991; Nesom, 1992; Pennell, 1941; Warnock, 1977a*

Castilleja elongata Penn. (tall paintbrush) -- Distribution: Brewster & Jeff Davis Cos. Comments: Category 1 References: Howell, 1986a; Lockwood, 1991; Nesom, 1992; Pennell, 1941; Warnock, 1970*

Castilleja purpurea (Nutt.) G. Don var. lindheimeri (Gray) Shinners (Lindheimer's paintbrush) -- Distribution: Bandera, Bell, Bexar, Blanco, Burnet, Comal, Coryell, Dallas, Gillespie, Goliad, Hays, Kerr, Lampasa s, McLennan, Medina, Travis, Uvalde, Williamson & Zavala Cos. References: Enquist, 1987a*

Penstemon brevibarbatus Crosswhite -- Distribution: Brewster, Crockett, Edwards, Jeff Davis, Kinney, Pecos, Terrell & Val Verde Cos. Comments: Included by some auth. in P. triflorus Heller; see Hatch et al., 1990. Also in Mexico?

Penstemon guadalupensis Heller (Guadalupe penstemon) -- Distribution: Brown, Comanche, Gillespie, Irion, Llano, Nolan, Scurry & Travis Cos. Comments: Included by some auth. in P. triflorus Heller; see Hatch et al., 1990 References: Enquist, 1987a*

Penstemon helleri Small (Heller's beardtongue) -- Distribution: Bandera, Bexar, Blanco, Brown, Burnet, Callahan, Kendall & Kerr Cos.

Penstemon triflorus Heller subsp. triflorus -- Distribution: edwards plateau Comments: subsp. integrifolius Penn. is known from Coahuila References: Enquist, 1987a*

Penstemon wrightii Hook. var. wrightii (Wright's penstemon) -- Distribution: Brewster, Jeff Davis, Presidio & Reeves Cos. Comments: also in Mexico?

Seymeria texana (Gray) Penn. (Texas seymeria) -- Distribution: Bandera, Bexar, Comal, Gillespie, Hays, Kendall, Kerr, Kimble & Travis Cos.

Lycium puberulum Gray var. berberidoides (Correll) Chang (silvery wolfberry) -- Distribution: Brewster and Presidio Cos. Comments: Category 3C References: Chiang-Cabrera, 1981; Powell, 1988*

Lycium texanum Correll (Texas wolfberry) -- Distribution: Brewster, Culberson, and Hudspeth counties Comments: Category 2 References: Chiang-Cabrera, 1981; Powell, 1988*

Physalis mollis Nutt. var. variovestita (Waterfall) Sullivan -- Distribution: coastal plain References: Sullivan, 1985

Physalis virginiana Mill. var. texana (Rydb.) Waterfall (Texas groundcherry) -- Distribution: coastal plain

Styrax platanifolius Engelm. (sycamore-leaf snowbells) -- Distribution: Bandera, Bexar, Blanco, Burnet, Caldwell, Comal, Edwards, Guadalupe, Gillespie, Hays, Kendall, Kerr , Kimble, Kinney, Llano, Real, Travis & Uvalde Cos. Comments: Category 3C (var. stellata) References: Cory, 1943; Enquist, 1987a*; Gonsoulin, 1974*; Vines, 1960*

Styrax texanus Cory (Texas snowbells) -- Distribution: Edwards, Real and Val Verde Cos.; introduced at a site in Kinney Co. Comments: Endangered References: Cory, 1943; Gonsoulin, 1974*; Mahler, 1981h; Poole & Riskind, 1987*; Vines, 1960*

Valerianella florifera Shinners -- Distribution: Fayette, Franklin, Lee, Robertson & San Jacinto Cos. References: Eggers, 1969*

Valerianella stenocarpa (Engelm.) Krok -- Distribution: Comal, Dallas, Kerr, Medina, San Saba, Tarrant & Travis Cos. References: Eggers, 1969*

Valerianella texana Dyal (Llano corn-salad) -- Distribution: Burnet, Gillespie & Llano Cos. Comments: Category 2 References: Dyal, 1938; Eggers, 1969*; Mahler, 1981b*

Citharexylum spathulatum Moldenke & Lundell (Mission fiddlewood) -- Distribution: Hidalgo, Starr & Zapata Cos. References: Lonard et al., 1991; Moldenke, 1942

Viola guadalupensis A. M. Powell & B. Wauer (Guadalupe Mountains violet) -- Distribution: Culberson Co. Comments: Category 2 References: Powell & Wauer, 1990*

Parthenocissus heptaphylla (Buckl.) Small (sevenleaf creeper) -- Distribution: Edwards Plateau; also Pecos Co. References: Powell, 1988*; Vines, 1960

Kallstroemia perennans B. L. Turner (perennial caltrop) -- Distribution: Brewster, Presidio & Val Verde Cos. Comments: Category 2 References: Turner, 1950; Williams, 1935*

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