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Sharp-pointed Flatsedge is a grass-like, 5-20 cm high annual that forms tufts of stems. The few leaves occur near the base of the plant and are 1-2 mm wide. The inflorescence is subtended by 3-4 long, leaf-like bracts. Each flower consists only of a small, pointed, 2 mm long scale, which subtends a single stamen and ovary. Flowers are crowded opposite each other into flattened spikelets that are...

Many-headed Sedge forms clumps without rhizomes and has slender stems that are 5-50 cm high. The lowest leaves are reduced to scales; the upper are flat and 1-4 mm wide. Flowers occur in 4-15 globose spikes clustered together at the top of the stem. The lower spikes are subtended by long, leaf-like bracts that greatly surpass the inflorescence. Inconspicuous male flowers (recognized by the old s...

Carex garberi is a tufted grass-like perennial. Its leaves are 1.0-3.5 mm wide. Arising from the bases of the plants are stems 5-40 cm tall. These main stems are terminated by a cluster of flowers/fruits. The upper flowers are female and the lower are male. Female flowers / fruits also occur at the tips of secondary stems which attach to the main stems. Mature fruits are white and 2-3 mm long (B...

Craw's Sedge is a perennial grass-like plant with a single or several stems, 1-3 dm high, which arise together from creeping rhizomes. The flat leaves, 1-3 mm wide, are mainly clustered near the base of the plant. 15-50 female flowers are clustered in cylindrical spikes, 1-2 cm long, and borne singly on stalks arising from the upper leaves (bracts). Male flowers are clustered together in th...

Shining Flatsedge is a grass-like annual which forms tufts of slender stems that are 5-20 cm high. The few leaves occur near the base of the plant and are 1-2 mm wide. The flowers consist of a small, blunt scale with a pale, ca. 2-3 mm long midrib, which subtends a single stamen and ovary. The flowers are crowded opposite each other into flattened spikelets that are 3-15 mm long. Spikelets occur...

Schweinitz' Flatsedge is a grass-like perennial with stems that are 10-40 cm high, arising from short, irregularly swollen rhizomes. The leaves are 1-4 mm wide and located mostly near the base of the plant. The inflorescence is subtended by 3-6 long, leaf-like bracts, some of which are wider than the leaves. The infloresence is made up of ascending clusters of flattened spikelets that are 5...

Pale Sedge occurs in small clumps arising from long, slender rhizomes, and has flowering stems up to 20 cm tall. Leaves are clustered on the lower third of the stem and have a thin pale-bluish waxy coating; they are 1-4 mm wide with long, pointed tips. The inflorescence consists of 2-3, or sometimes 4, loosely clustered spikes. The narrow terminal spike is 7-30 mm long and either is composed ent...

Water Bulrush is a rhizomatous perennial with slender, weak stems that are 20-80 cm long and which float on the water's surface rather than emerging from it. Leaves are long and flaccid and arise mainly from near the base of the plant. The inflorescence consists of a solitary spike subtended by a green, leaf-like bract that is 1-6 cm long and held nearly erect, appearing to be a continuatio...

Pygmy Water-lily is an herbaceous perennial with submergent stems and floating leaves arising from a thick rhizome. The leaves have a long, slender petiole attached to the base of a long, v-shaped notch in the elliptic blades that are 7-10 cm long. The bowl-shaped flowers have long, slender stalks and float on the surface of the water. Each flower has 4 light green, narrowly elliptic sepals that...