All Floras      Advanced Search
FOC Vol. 10 Page 2, 196, 260 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 10 | Fabaceae

115. Phaseolus Linnaeus, Sp. Pl. 2: 723. 1753.

菜豆属 cai dou shu

Authors: Delin Wu & Mats Thulin

Twining or erect herbs, often with hooked hairs. Stipules basifixed, persistent, not produced below point of insertion. Leaves pinnately 3-foliolate; stipels present. Racemes axillary, flowers at swollen nodes. Bracts and bracteoles persistent or deciduous. Ca­lyx 2-lipped, upper pair of teeth connate, lower lip 3-toothed. Corolla yellow, white, red, or purple; petals clawed; standard suborbic­ular, reflexed, sometimes with appendages at base; wings obovate or oblong, adherent to keel; keel linear, beak long, spirally coiled through 1-5 turns. Stamens diadelphous. Style spirally coiled through at least 360°; stigma oblique. Legumes linear or oblong, sub­terete or compressed. Seeds 2 to many, oblong or reniform; hilum shortly linear, estrophiolate.

About 50 species: native to tropical America; three species (all introduced) in China.

1 Bracteoles inconspicuous, shorter than calyx tube.   3 P. lunatus
+ Bracteoles conspicuous, longer than calyx tube   (2)
2 (1) Inflorescences shorter than leaves; legumes linear-oblong, slightly curved, not broadened toward top.   1 P. vulgaris
+ Inflorescences longer than leaves; legumes falcate-oblong, broadened toward top.   2 P. coccineus

Lower Taxa


Related Objects  
  • Phaseolus (PDF)
  • PDF

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




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