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Pisum Linn.

豌豆属

Description from Flora of China

Herbs annual or perennial. Stem often climbing by means of tendrils, terete, glabrous. Leaves paripinnate with rachis termi­nating in a tendril; stipules leaflike, cordate, larger than leaflets (to 10 cm); leaflets 1-3-paired, ovate to elliptic, margin entire or den­tate. Inflorescence a 1- to many flowered raceme. Calyx campanulate; teeth ± leaflike, at least 2 teeth less than 2 × as long as tube. Corolla white or otherwise colored; standard obovate. Stamens diadelphous; staminal tube not oblique at apex; filaments distally slightly dilated. Ovary subsessile; ovules many; style curved inward, distally dilated and margin recurved forming a laterally com­pressed body, longitudinally grooved, hairy on upper side. Legume long elliptic, inflated, apex acute. Seeds many, spheroid.

Two or three species: Mediterranean region to SW Asia, one species cultivated in temperate regions worldwide, including China.

(Authors: Bao Bojian (包伯坚); Nicholas J. Turland)


 

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