Composed of two or more similar parts united to form one whole; for instance, a leaf.

Compound

Composed of two or more similar parts united to form one whole; for instance, a leaf.

Heart-shaped with the tip forward.

Cordate

Heart-shaped with the tip forward.

Flowers few, showy, pinkish purple.

Coreopsis

Flowers few, showy, pinkish purple.

A hard, bulb-like base of a stem.

Corm

A hard, bulb-like base of a stem.

The inner circle of flower parts: made up of petals which are often colored and showy.

Corolla

The inner circle of flower parts: made up of petals which are often colored and showy.

Tubular structure formed by united petals.

Corolla-Tube

Tubular structure formed by united petals.

A type of flower cluster with a flat top.

Corymb

A type of flower cluster with a flat top.

Brances spiny; fruit apple-like.

Crataegus

Brances spiny; fruit apple-like.

Flowers with free filaments.

Crinum

Flowers with free filaments.

Wedge-shaped.

Cuneate

Wedge-shaped.

Flowers in terminal clusters.

Cynoctonum

Flowers in terminal clusters.

Flowers inconspicuous and hidden by overlapping scales.

Cyperus

Flowers inconspicuous and hidden by overlapping scales.

Flower clusters lateral; fruit not winged.

Cyrilla

Flower clusters lateral; fruit not winged.

Stems woody at least at base, arching; flowers purple-pink, in auxiliary clusters.

Decodon

Stems woody at least at base, arching; flowers purple-pink, in auxiliary clusters.

Extending or running down on another structure, as a leaf on a stem or a tubercle on an achene.

Decurrent

Extending or running down on another structure, as a leaf on a stem or a tubercle on an achene.

Shaped like an equalateral triangle or the Greek letter delta.

Deltoid

Shaped like an equalateral triangle or the Greek letter delta.

Leaves leathery, broad, and with a conspicuous vein running just inside the margin.

Desmothamnus

Leaves leathery, broad, and with a conspicuous vein running just inside the margin.

forking regularly by twos.

Dichotomous

forking regularly by twos.

Spikelets subtended by conspicuous white or partly white bracts.

Dichromena

Spikelets subtended by conspicuous white or partly white bracts.

Flowers without small appendages between the sepals.

Didiplis

Flowers without small appendages between the sepals.

Cut into numerous very fine segements or divisions.

Dissected

Cut into numerous very fine segements or divisions.

Coming off in two ranks.

Distichous

Coming off in two ranks.

Diverging at a wide angle.

Divaricate

Diverging at a wide angle.

Stem round, hollow; spikelets borne in axillary as well as terminal clusters.

Dulichium

Stem round, hollow; spikelets borne in axillary as well as terminal clusters.

Inflourescence not plum-like nor feathery; panicle obviously branched.

Echinochloa

Inflourescence not plum-like nor feathery; panicle obviously branched.

All flowers with stamens and carpels.

Echinodorus

All flowers with stamens and carpels.

Leaves large and dilated with inflated petioles.

Eichhornia

Leaves large and dilated with inflated petioles.

Plant body made p of smooth, proliferating stems.

Eleocharis

Plant body made p of smooth, proliferating stems.

Leaf-sheaths present only at the base of stem; flowers in one group.

Eleocharis

Leaf-sheaths present only at the base of stem; flowers in one group.

Sheaths at base of stem with edges united to form tube.

Eleocharis

Sheaths at base of stem with edges united to form tube.

Pertains to shape.

Elliptic

Pertains to shape.

Rooted to substratum; erect and extending upward out of water.

Emergent

Rooted to substratum; erect and extending upward out of water.

Pertaining to leaves; comming off in two ranks, making the base appear flattened.

Equitant

Pertaining to leaves; comming off in two ranks, making the base appear flattened.

Spikelets long-spiny (long-awned), with or withuot hairs at base; panicle not nodding.

Erianthus

Spikelets long-spiny (long-awned), with or withuot hairs at base; panicle not nodding.

Leave from base of scrape bearing button like whitish heads of minute flowers; roots with cross-constrctions.

Eriocaulon

Leave from base of scrape bearing button like whitish heads of minute flowers; roots with cross-constrctions.

Appearing as if gnawed.

Erose

Appearing as if gnawed.

flowers white in dense button-like heads; leaves bristly-margined.

Eryngium

flowers white in dense button-like heads; leaves bristly-margined.

Flowers white or purplish.

Eupatorium

Flowers white or purplish.

A cluster or bundle.

Fascicle

A cluster or bundle.

The part of the stamen which supports the anther.

Filament

The part of the stamen which supports the anther.

Like a thread; long, slender, and round.

Filiform

Like a thread; long, slender, and round.

Style swollen at base but the swollen base not persistent on achene.

Fimbristylis

Style swollen at base but the swollen base not persistent on achene.

Alternately bent or twisted in different directions.

Flexuous

Alternately bent or twisted in different directions.

Flowers clusters conspicuous because of large, leaf like, pink sepals.

Flowers

Flowers clusters conspicuous because of large, leaf like, pink sepals.

Flowers white in stalked globose clusters; fruits aggregated in spherical.

Flowers

Flowers white in stalked globose clusters; fruits aggregated in spherical.

Leaf-sheaths scattered along stem; flowers in several groups.

Fuirena

Leaf-sheaths scattered along stem; flowers in several groups.

Stem topped by 1 to several spikelets; leaf-sheath distributed along the stem.

Fuirena

Stem topped by 1 to several spikelets; leaf-sheath distributed along the stem.

Each scale of spikelet bearing a bristle or awn near the apex.

Fuirena

Each scale of spikelet bearing a bristle or awn near the apex.

Spindle shaped.

Fusiform

Spindle shaped.

Swollen on one side.

Gibbous

Swollen on one side.

Fruit globose, about as long as broad; leaves mostly less than 5 cm.

Glabraria

Fruit globose, about as long as broad; leaves mostly less than 5 cm.

Leaflets many and small, usually 12-22; tree prominently thorny.

Gleditsia

Leaflets many and small, usually 12-22; tree prominently thorny.

Shperical.

Globose

Shperical.

Spikelets with several florets.

Glyceria

Spikelets with several florets.

Leaves leathery; evergreen; flowers showy, white, large.

Gordonia

Leaves leathery; evergreen; flowers showy, white, large.

Leaf with a ligule at base (junction of leaf and sheath).

Graminae

Leaf with a ligule at base (junction of leaf and sheath).

Leaves covered with tiny black dots visible with lens; flowers small, white.

Gratiola

Leaves covered with tiny black dots visible with lens; flowers small, white.

Leaves small, mostly under 3cm long; usually with black dots visible with a lens covering them.

Gratiola

Leaves small, mostly under 3cm long; usually with black dots visible with a lens covering them.

Root red.

Gyrotheca

Root red.

Leaves smaller; flowers individually small, in terminal spike-like clusters.

Habenaria

Leaves smaller; flowers individually small, in terminal spike-like clusters.