Species: Cyperus erythrorhizos
Encyclopedia of Puget Sound
Red-root Flatsedge is a grass-like annual that forms tufts of stout stems that are 1-7 dm high. Few leaves occur near the base of the plant; they are 2-9 mm wide. The flowers consist only of a pointed scale with a green, ca. 1.5 mm long midvein, which subtends a single stamen and ovary. The flowers are crowded opposite each other into cylindrical spikelets that are 1-4 cm long. These spikelets are clustered into elongate spikes on stalks arising from the top of the stem. The inflorescence is subtended by 3-5 long, leaf-like bracts that are as wide or wider than the leaves. The seed is 3-sided.
Source: Encyclopedia of Life
Classification
Monocotyledoneae
Cyperales
Cyperaceae
Cyperus
NatureServe
Classification
Ecology and Life History
Red-root Flatsedge is a grass-like annual that forms tufts of stout stems that are 1-7 dm high. Few leaves occur near the base of the plant; they are 2-9 mm wide. The flowers consist only of a pointed scale with a green, ca. 1.5 mm long midvein, which subtends a single stamen and ovary. The flowers are crowded opposite each other into cylindrical spikelets that are 1-4 cm long. These spikelets are clustered into elongate spikes on stalks arising from the top of the stem. The inflorescence is subtended by 3-5 long, leaf-like bracts that are as wide or wider than the leaves. The seed is 3-sided.
Source: Encyclopedia of Life