鹅銮鼻大戟 e luan bi da ji

Herbs, perennial, 20-40 cm tall. Rootstock woody. Stems many from base, often prostrate, 1-2 mm thick, with large internodes. Leaves opposite, subsessile; stipules shortly triangular, lacerate; leaf blade rounded-ovate to obovate, 8-12 × 6-8 mm, coriaceous, margin serrate, apex rounded; involucral leaves sessile, ovate, ca. 3 × 2.5 mm, remotely crenate. Cyathia axillary or terminal, solitary or in pedunculate cymes; involucre turbinate, 0.7-1.1 × ca. 1 mm, glabrous, marginal lobes 4; glands 4, yellow-green, transversely elliptic, appendages white, reniform, 0.2-0.5 × 0.4-0.8 mm, margin entire or dentate. Male flowers 20-30; anthers yellow. Female flower exserted from involucre; ovary smooth, glabrous; styles free; stigma 2-lobed. Capsule 3-angular-ovoid, 1.6-2.2 × 1.7-2.3 mm, smooth, glabrous; fruiting pedicel to 3.7 mm. Seeds ovate-globose, 1-1.1 × 0.6-0.8 mm, gray, brown, or red, shallowly transversely furrowed, adaxially grooved; caruncle absent. Fl. and fr. summer.

● Coastal sands and grasslands; near sea level. S Taiwan (Eluanbi Peninsula).