Composed of two or more similar parts united to form one whole; for instance, a leaf.
Heart-shaped with the tip forward.
Flowers few, showy, pinkish purple.
A hard, bulb-like base of a stem.
The inner circle of flower parts: made up of petals which are often colored and showy.
Tubular structure formed by united petals.
A type of flower cluster with a flat top.
Brances spiny; fruit apple-like.
Flowers with free filaments.
Flowers in terminal clusters.
Flowers inconspicuous and hidden by overlapping scales.
Flower clusters lateral; fruit not winged.
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.
Shaped like an equalateral triangle or the Greek letter delta.
Leaves leathery, broad, and with a conspicuous vein running just inside the margin.
forking regularly by twos.
Spikelets subtended by conspicuous white or partly white bracts.
Flowers without small appendages between the sepals.
Cut into numerous very fine segements or divisions.
Coming off in two ranks.
Diverging at a wide angle.
Stem round, hollow; spikelets borne in axillary as well as terminal clusters.
Inflourescence not plum-like nor feathery; panicle obviously branched.
All flowers with stamens and carpels.
Leaves large and dilated with inflated petioles.
Plant body made p of smooth, proliferating stems.
Leaf-sheaths present only at the base of stem; flowers in one group.
Sheaths at base of stem with edges united to form tube.
Pertains to shape.
Rooted to substratum; erect and extending upward out of water.
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.
Leave from base of scrape bearing button like whitish heads of minute flowers; roots with cross-constrctions.
Appearing as if gnawed.
flowers white in dense button-like heads; leaves bristly-margined.
Flowers white or purplish.
A cluster or bundle.
The part of the stamen which supports the anther.
Like a thread; long, slender, and round.
Style swollen at base but the swollen base not persistent on achene.
Alternately bent or twisted in different directions.
Flowers clusters conspicuous because of large, leaf like, pink sepals.
Flowers white in stalked globose clusters; fruits aggregated in spherical.
Leaf-sheaths scattered along stem; flowers in several groups.
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.
Swollen on one side.
Fruit globose, about as long as broad; leaves mostly less than 5 cm.
Leaflets many and small, usually 12-22; tree prominently thorny.
Spikelets with several florets.
Leaves leathery; evergreen; flowers showy, white, large.
Leaf with a ligule at base (junction of leaf and sheath).
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.
Leaves smaller; flowers individually small, in terminal spike-like clusters.