Advanced Search

Columbia lewisia is a succulent, glabrous perennial with several leafless stems, 5-15 cm (2-6 in) high, from a fleshy, unbranched rootcrown. Strap-shaped basal leaves are up to 4 cm (1 in) long. Stems have small leaf-like bracts with entire or toothed margins. Flowers are borne on short stalks subtended by a small gland-toothed bract in a branched, open inflorescence. Each flower has 2 glandular...

Tiny Swamp Saxifrage is a short-lived perennial herb with erect, leafless stems that are 5-10 cm high and arising from a short, often bulblet-bearing rhizome. Rosette leaves are 13-35 mm long and are egg-shaped with a short, broad petiole. The leaves have scattered, long, white or brown hairs, while the stem is densely covered with white, gland-tipped hairs. 5-15 short-stalked flowers are borne ...

Tufted Club-rush is a perennial, grass-like plant with tufted, stems that are 1-4 dm tall and arising from short rhizomes. The leaves are clustered near the base and are reduced to scales or short blades. Several flowers are spirally arranged in a single, short, spike-like, terminal cluster, or spikelet, that is 4-6 mm long and subtended by a long-tipped scale. Each flower consists of a single s...

Bristly Sedge is a coarse, perennial, grasslike plant with clustered stems, 5-10 dm high, which arise from a short rhizome. The long, glabrous leaves are flat and 4-11 mm wide. Flowers are clustered in cylindical spikes, 2-7 cm long, which arise from the axils of the smaller upper leaves (bracts). The lowest bract leaf is much longer than the inflorescence. Male flowers are borne in a narrow spi...

Big-leaf Sedge is a perennial grass-like plant with a single or several sharply triangular stems, 5-10 dm tall, which arise together from creeping rhizomes. The flat leaves, 8-20 mm wide and up to 5 dm long, are distributed evenly along the stem. Foliage is glabrous. Flowers are clustered in cylindical spikes, 4-10 cm long, and arise from the axils of the smaller upper leaves (bracts). A single ...

Brown Bog Sedge is a loosely clumped grass-like perennial that grows in patches. The bases of the plants are purplish-red tinged. Leaves are strap-like, 2.0-3.5 mm wide, and light-green. Stems are 25-75 cm long and are terminated by one flower/fruit cluster (spike). This terminal spike has female flowers above and male flowers below. Also towards the apex of the stem are 2-4 cylindrical spikes c...

Thin-flowered sedge forms loose clumps with slender, 8 to 24 inch high stems,arising from creeping rhizomes. The leaves are ca. 1 mm wide. Flowers are borne in 2-4 small spikelets which are grouped together in a cluster at the top of the stem. A few male flowers (recognized by the old stamens) occur at the base of each spike. The whitish, papery scales have a green center, and are as long as th...

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...