台东癸草 tai dong gui cao

Zornia diphylla (Linnaeus) Persoon var. ciliaris Ohwi.

Herbs, perennial, to 40 cm tall, erect. Stems glabrous or pubescent. Stipules glabrous, 5-veined. Leaves 2-foliolate; peti­ole and petiolules pubescent; leaflet blades ovate-lanceolate, 1.4-2 × 0.4-0.6 cm, not glandular punctuate, secondary veins 5-9 on either side of midvein, apex acute and mucronate. In­florescences spikes, many flowered; bracts ovate-lanceolate, ca. 8 × 5 mm, apex abruptly acute. Calyx ca. 3.5 mm, strigose. Corolla pale yellow, ca. 1 cm. Legume divided into 5 or 6 articles; articles 2-2.2 × 2-2.2 mm, surface smooth. Seeds not seen.

Sunny places in mountains; 500-1500 m. Taiwan [India, Sri Lanka, Vietnam].