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FOC | Family List | FOC Vol. 10 | Fabaceae

154. Calophaca Fischer ex Candolle, Prodr. 2: 270. 1825.

丽豆属 li dou shu

Authors: Xiangyun Zhu & Kai Larsen

Shrubs or subshrubs. Stipules lanceolate or broadly lanceolate, large, membranous or herbaceous, adnate to base of petiole. Leaves imparipinnate, 5-27-foliolate; stipels absent; leaflet blades leathery, margin entire. Raceme 4-flowered or more; bracts and bractlets rarely persistent. Calyx tubular, oblique on pedicel; teeth 5, almost equal or adaxial 2 connate. Corolla yellow, large; stan­dard ovate or suborbicular, erect, reflexed at margins; wings obovate-oblong or subfalcate; keel incurved, equal to wings, apex blunt. Stamens diadelphous (9+1); anthers orbicular. Ovary sessile, with glandular trichomes or pubescent; style filiform; stigma small. Legume cylindric or linear, pubescent or with glandular trichomes, 1-loculed, inside pubescent or glabrous, 2-valved, with persistent calyx. Seeds subreniform, without a caruncle.

Five species: China, Russia; C Asia; three species (two endemic) in China.

Calophaca tianschanica (B. Fedtschenko) Boissier (Trudy Bot. Inst. Akad. Nauk S.S.S.R., Ser. 1, Fl. Sist. Vyssh. Rast. 1: 137. 1933; C. nigricans var. tianschanica B. Fedtschenko, Trudy Imp. S.-Peterburgsk. Bot. Sada 24: 178. 1905) was recorded from Xinjiang by S. H. Cheng and L. K. Dai (Ill. Treatm. Princ. Pl. China (Leguminosae), 357-359. 1955). However, the present authors found no relevant specimens and therefore could not substantiate the occurrence of this species in China.

1 Legume without glandular trichomes.   1 C. chinensis
+ Legume with glandular trichomes   (2)
2 (1) Stipules 0.5-0.8 cm; peduncle densely lanuginous; calyx ca. 1 cm, appressed sericeous; seeds dark brown.   2 C. soongorica
+ Stipules ca. 2 cm; peduncle with glandular and white long trichomes; calyx 1.5-2 cm, with glandular and white long trichomes; seeds olive-green.   3 C. sinica

Lower Taxa


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