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FOC | Family List | FOC Vol. 11 | Oxalidaceae | Biophytum

3. Biophytum umbraculum Welwitsch, Apont. 55: 590. 1859.

无柄感应草 wu bing gan ying cao

Biophytum apodiscias (Turczaninow) Edgeworth & J. D. Hooker; B. petersianum Klotzsch; B. sessile (Buchanan- Hamilton ex Baillon) R. Knuth; Oxalis apodiscias Turczaninow; O. gracilenta Kurz; O. petersiana (Klotzsch) C. Müller; O. sessilis Buchanan-Hamilton ex Baillon.

Annuals 4-15 cm tall. Stem simple, slender, with dense recurved trichomes especially apically. Leaves 1-3.5 cm, with sparse recurved trichomes; rachis slender; leaflets 4-10 pairs; leaflet blades orbicular-ovate, 2.5-8 × 2.5-5 mm with basal one smallest, base almost symmetric to asymmetric. Umbels sessile, several flowered; bracts lanceolate, as long as pedicels. Pedicel ca. 3 mm. Sepals narrowly lanceolate, ca. 4 mm. Capsule ellipsoid-obovoid, ca. 3 × 2 mm. Fl. and fr. Aug-Nov.

Mountain valleys, forests; 800-1600 m. Yunnan [India, Indonesia, Malaysia, Myanmar, New Guinea, Philippines, Thailand, Vietnam; tropical Africa, Madagascar].


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