Crotalaria cleomifolia Welwitsch ex Baker (1871: 43)

Ninkaew, Sakuntala, Balslev, Henrik, Pornpongrungrueng, Pimwadee & Chantaranothai, Pranom, 2017, Crotalaria L. (Fabaceae: Faboideae) in continental Southeast Asia, Phytotaxa 320 (1), pp. 448-450 : 448-450

10. Crotalaria cleomifolia Welwitsch ex Baker (1871: 43) . Type:— ANGOLA. Pungo Andongo , February 1857 ,

Welwitsch 1966 ( holotype LISU n.v., isotype BM000843459 !) .

= Crotalaria schumanniana Harms (1897: 89) . Type :— SOMALIA. Coromma, August 1893, Riva 1407 (holotype B n.v., isotype BM000843463 !).

= Crotalaria cleomifolia var. seretii Wildeman (1910: 198) . Type:— ZAIRE. Orientale, Amadi to Surongga , Seret 354 (holotype BR n.v.).

= Crotalaria cleomifolia var. kassneri Baker (1914: 351) . Type :— KENYA. Kitu : Galunka, 28 May 1902, Kassner 838 (isotypes BM000843460 !, K000412627 !).

= Crotalaria keilii Baker (1914: 349) . Type :— BURUNDI. Usumbura, Keil 87 (holotype B n.v., isotype BM000843461 !).

= Crotalaria longibracteata Wildeman (1924: 500) . Type :— ZAIRE. Ruwenzori , Butagu valley, 18 April 1914, Bequaert 3797 (holotype BR n.v.).

= Crotalaria cleomifolia var. parviflora Baker (1933: 180) . Type:— ZAIRE. Orientale, Faradje to Aru , August 1913, Lebrun 3497 (holotype BR n.v., isotype BM000843462 !).

= Crotalaria cleomifolia var. iodesia Chiovenda (1935: 26) . Type:— KENYA. Nyeri, Balbo 205 (holotype TOM n.v.).

Herb or shrublet, erect, 0.5–2 m high; young branches terete, brown pubescent. Leaves digitately 5-foliolate. Stipules triangular, 1.5–3 × 0.5–1.5 mm, brown pubescent, persistent. Petioles 2–5 cm long, brown pubescent. Petiolules 1.5–2 mm long. Leaflets obovate, 2–7.5 × 0.5–2.3 cm, base cuneate, apex acute or acuminate, margin entire, glabrous upper, brown pubescent lower; lateral veins 6–10 pairs. Inflorescences terminal, open racemes, 17–37 cm long; peduncle 4–6.5 cm long, brown pubescent. Bracts narrowly linear, 3–5 mm long, pesistent. Pedicels 5–8 mm long, brown pubescent. Bracteoles inserted on the calyx tube, triangular, 3–3.5 × 0.8–1 mm, brown pubescent, caducous. Calyx 4.8–5 mm long, truncate; tube 2.5–3 mm long; lobes subequal, narrowly linear, 2–2.3 mm long, glabrous inside, brown pubescent outside. Corolla yellow. Standard: claw 5–6 mm long, white tomentose above and along the margin, at the apex with appendages, glabrous below; blade broadly ovate, 12–13 × 9–9.2 mm, base rounded or subcordate, apex rounded, margin glabrous. Wings: claw 4.8–5 mm long, glabrous, margin white puberulous; blade oblong, 12–13 × 4–4.8 mm, base cuneate, apex obtuse, margin glabrous. Keel: claw 5–6 mm long, glabrous, margin sparsely white puberulous; blade obovate, 12–13 × 6–7 mm, beak not twisted, base oblique, apex attenuate, margin white pubescent. Stamens: filaments fused for proximal 10–12 mm, free for distal 3–7 mm; anthers either narrowly linear, 2–2.2 mm long or oblong, 0.7–0.8 mm long. Ovary with 2–2.2 mm long stipe, oblong or oblanceolate, 5.5–6 mm long, brown pubescent; style 10–12 mm long, adaxially white pubescent in a single line along the distal edge from the middle towards the apex, abaxially glabrous. Pods with 3–5 mm long stipe, oblong, 4–5 × 0.4–0.5 cm, brown, rusty tomentose. Seeds reniform, 2–3 × 1–1.5 mm, black-brown.

Representative specimens: — MALAYSIA. Pahang: Cameron Highlands, 23 August 1977, Lewis 170 ( KEP) . VIETNAM. Lam Dong: Da Lat, 10 January 1980, Khoi 97 ( HN) .

Distribution: —North America, Africa, Asia ( Vietnam, Malaysia). ( Figure 8 ).

Ecology: —Roadsides, disturbed areas and secondary forests, elevation 1500 − 1700 m.

Notes: — Crotalaria cleomifolia is distinguished by its obovate and digitately 5-foliolate leaflets, the beak of keel is not twisted and the pods that are rusty tomentose.

Figures

FIGURE 8. Distribution map of Crotalaria cleomifolia and C. cytisoides in continental Southeast Asia.