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Fascicle

Small bundle or cluster.

Fertile

Capable of producing a fruit or caryopsis.

Fibrous

Looking like a mass of fiber; thread-like but may appear branched.

Filiform

Thread-like; long and narrow.

First glume

The lowermost glume, odd-veined, an empty bract.

Flabellate

Broadly wedge or fan-shaped.

Flexuous

Bent gradually in one direction and then another.

Floral axis

The structure that the palea and flower are attached to the rachilla.

Floret

The lemma, floral axis, and palea with the included flower (pistil, stamen, and lodicules) or caryopsis (floret with all parts).

Flower

The reproductive axis of angiosperms consisting of sepals, petals, stamens, and carpels, although one or more of these may be absent.

Flowering

Producing the male and female reproductive structures.

Fruit

Ripened ovary.

Fusiform

Spindle-shaped; widest near the middle and tapering in toward both ends.