All Floras      Advanced Search
FOC Vol. 10 Page 2, 322, 500 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 10 | Fabaceae

141. Chesneya Lindley ex Endlicher, Gen. Pl. 1275. 1840.

雀儿豆属 que er dou shu

Authors: Xiangyun Zhu & Kai Larsen

Chesneya polystichoides

Credit: Harvard University Herbaria

Spongiocarpella Yakovlev & N. Ulziykhutag.

Plants perennial. Root stout, woody. Stem lignified, short. Leaves imparipinnate, rarely 3-foliolate; stipules herbaceous, adnate to petiole; leaflets entire. Flowers solitary, axillary, rarely 1-4 in a raceme; peduncle with nodes bearing 1 bract. Calyx with 2 bracts at base; tube tubular, gibbous on one side at base, 5-lobed; 2 upper lobes connate, 3 lower lobes free, with brown glands at apex. Corolla yellow or purple; standard suborbicular or oblong, abaxially with dense short appressed hairs, ± longer than wings or keel. Stamens diadelphous; anthers uniform. Ovary sessile; stigma capitate, papillary. Legume oblong to linear, 1-loculed. Seeds reniform. Basic chromosome number x = 8.

About 21 species: C and SW Asia, Mediterranean region; seven species (two endemic) in China.

Chesneya dshungarica Goloskokov (Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 18: 117. 1957) was recorded from Xinjiang by Chang Y. Yang (Claves Pl. Xinjiang. 3: 72. 1985). However, the present authors found no relevant specimens and therefore could not substantiate the occurrence of this species in China.

1 Stipules deciduous; plants not cushionlike, with dense whitish appressed hairs; leaflets obovate or obovate-elliptic, apex rounded, emarginate, or truncate; legume 4-6 cm   (2)
+ Stipules persistent; plants cushionlike, with spreading whitish appressed hairs or glabrous; leaflets obovate, elliptic, or suborbicular, apex acute or subrounded; legume shorter than 3 cm   (4)
2 (1) Racemes 1-4-flowered; mature legume glabrous.   1 C. cuneata
+ Flowers solitary; mature legume with dense appressed hairs   (3)
3 (2) Leaflets 5-7 × 3-5 mm; pedicels ca. as long as or slightly longer than leaves; legume 35-50 × 4-5 mm.   2 C. crassipes
+ Leaflets 7-15 × 4-10 mm; pedicels ca. as long as or shorter than leaves; legume 50-60 × 9-10 mm.   3 C. acaulis
4 (1) Persistent stipules not becoming spines, darkened when dry, incurved or straight, leaflets without hard spine at apex   (5)
+ Persistent stipules becoming spines; leaflets with hard spine at apex   (6)
5 (4) Leaflets 19-41, glabrous, base conspicuously oblique.   4 C. polystichoides
+ Leaflets 15-21, both surfaces with dense spreading appressed hairs, base rounded or slightly so.   5 C. nubigena
6 (4) Corolla purple; bracteoles linear, ca. 8 mm; leaflets 3 or 4 pairs, both surfaces with whitish silky appressed hairs.   6 C. macrantha
+ Corolla yellow; bracteoles subulate, shorter than 1 mm; leaflets 4-6 pairs, with whitish spreading short appressed hairs.   7 C. spinosa

Lower Taxa


Related Objects  
  • Chesneya (PDF)
  • PDF

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |