Volume 4 > Part 3 > Year 2018 > Page 264 > Leguminosae-Papilionoideae > Crotalaria

24. Crotalaria nana Burm.f.wfo-0000174074

Fl. Ind.: 156, t. 48, f. 2. 1768; Baker in Hook.f., Fl. Brit. India 2: 71. 1879; Trimen, Fl. Ceylon 2: 13. 1894; DC., Prodr. 2: 127. 1825; Gagnep. in Lecomte, Fl. Indo-Chine 2: 331. 1916; Santapau, Rec. Bot. Surv. India 16(1): 62. 1953; Munk, Reinw. 6: 210. 1962; Niyomdham, Thai Forest Bull., Bot. 11: 146. 1978; Thuân et al., Fl. Cambodge, Laos & Vietnam 23: 216. 1987; Rudd in Dassanayake & Fosberg, Revis. Handb. Fl. Ceylon 7: 207. 1991; J.Q.Li et al. in Z.Y.Wu et al., Fl. China 10: 116. 2010; Ninkaew et al., Phytotaxa 320(1): 39. 2017.

Accepted Name : This is currently accepted.

Description : Herb 15–30 cm tall, prostrate, much branched nearly from the base; young branches terete, brown pubescent. Stipules minute, caducous. Leaves simple, oblong, 0.3–1.5 by 0.2–0.4 cm, apex acute or obtuse, base obtuse, margin entire, both surfaces brown pubescent; lateral veins inconspicuous; petioles 0.2–1 mm long. Inflorescences terminal or axillary with capitate racemes of 2–4 flowers, 1.8–2.5 cm long; peduncle 1–11 mm long, brown pubescent; bracts narrowly linear, 1.5–2 mm long, persistent; bracteoles inserted on calyx tube, narrowly linear, 1–2 mm long, persistent; pedicels 2–3 mm long, brown pubescent. Calyx 4–5 mm long, campanulate, bilabiate; tube 1–4.5 mm long; lobes triangular, 0.5–3 mm long, glabrous inside, brown pubescent outside. Corolla yellow; standard oblong, 3.5–3.7 by 1.3–1.5 mm, apex obtuse with brown pubescence, base cuneate, margin glabrous claw 0.8–1 mm long, white tomentose on the upper and along margin, glabrous on the lower; wings lanceolate, 2.5–2.8 by 0.5–0.7 mm, apex obtuse, base oblique, margin glabrous, claw 0.7–0.8 mm, glabrous; keel ovate, 3.8–4 by 1.5–1.8 mm, beak twisted, apex attenuate, base cuneate, margin white puberulous, claw 0.5–0.7 mm long, glabrous. Stamens: filaments fused for proximal 1–1.5 mm, free for distal 2–3 mm; anthers either narrowly linear, 0.5–0.6 mm long, or oblong, ca 0.1 mm long. Ovary sessile, elliptic, 2–2.2 mm long, glabrous; style 2.3–2.5 mm long, adaxially white puberulous in a single line along distal edge, abaxially glabrous. Pods sessile, elliptic, 4.5–7 by 2–3 mm, brown-black, glabrous. Seeds reniform, 1–1.8 by 0.5–0.8 mm, brown-black.

Thailand : EASTERN: Roi Et (Phanom Phrai, Ban Kok Kaeo); SOUTH-EASTERN: Chon Buri (Khao Khiao, Si Racha).

Distribution : Sri Lanka, India (type), Myanmar, Vietnam.

Ecology : Open areas, 7–130 m alt.