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Herb, perennial, with arching to erect stems 15-50 cm tall, arising from rhizomes. Leaves simple, 4-15 x 1-4 cm, sessile, lance-shaped tapering to a tip, alternate, arranged on either side of the stem. Flowers arranged in a raceme, terminal; sepals and petals alike, 6, white. Fruit a berry, greenish with black stripes; seeds 1-2. Source: Encyclopedia of Life

Toothcup is a small, glabrous annual with simple or branched, erect to prostrate stems that are up to 10 cm high. The opposite, narrowly lance-shaped leaves have short petioles and are 15-30 mm long. The tiny, solitary flowers are sessile in the axils of upper leaves. The cup-shaped, shallowly 4-lobed calyx is 1-3 mm long in flower but up to 4 mm long in fruit. The 4 stamens are shorter than the...