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FOC | Family List | FOC Vol. 10 | Fabaceae

149. Corethrodendron Fischer & Basiner, Bull. Cl. Phys.-Math. Acad. Imp. Sci. Saint-Pétersbourg. 4: 315. 1845.

山竹子属 shan zhu zi shu

Authors: Langran Xu & Byoung-Hee Choi

Shrublets. Stems conspicuous. Stipules 2, opposite petiole, scarious, connate or free, deciduous. Leaves imparipinnate; leaflet blades opposite, margin entire. Racemes axillary, lax, many flowered; bracts marcescent or caducous. Bracteoles 2 at base of calyx. Calyx campanulate or obliquely campanulate; teeth 5, unequal or subequal. Corolla purple or pinkish purple, marcescent on mature legumes; standard longer than wings, slightly longer than keel, not turned backward at anthesis; keel with claw longer than half of lamina. Stamens diadelphous (9+1). Ovary sessile, hairy. Legume articulate, divided into several articles, indehiscent, adaxial suture grooved; articles compressed or biconvex, lanate, pubescent, or glabrous, with or without prickles.

Five species: China, Kazakhstan, Mongolia, Russia; five species (one endemic) in China.

1 Leaves at apex without leaflet to only 1 at terminating rachis; legume densely lanate.   1 C. scoparium
+ Leaves normally imparipinnate; legume glabrous to pubescent   (2)
2 (1) Calyx tube split between adaxial or lateral teeth; leaflet blades 15-31, broadly ovate to suborbicular   (3)
+ Calyx tube not split between teeth; leaflet blades (5-)11-19(-21), oblong, elliptic, broadly linear, or lanceolate   (4)
3 (2) Calyx obliquely campanulate, tube split between adaxial teeth.   2 C. multijugum
+ Calyx 2-labiate, tube split between adaxial and lateral teeth.   3 C. krassnowii
4 (2) Legume pubescent and prickly.   4 C. fruticosum
+ Legume glabrous.   5 C. lignosum

Lower Taxa


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