Lathyrus davidii Hence - David.s Pea.

Taxonomic position.

Family Fabaceae Lindl., genus Lathyrus L.

MOrphology and biology.

Perennial plant 80-100 cm tall with straight or ascending stem, slightly climbing by means of leaf tendrils. Stem grooved, angular. Stipules large, 2-4(6) cm long, up to 1-2.5 cm wide, semisagittate, with entire or dentate margin. Rachis of lower leaves ends in a cusp, upper ones in a branched tendril. Leaves consist of 3-4(5) pairs of oblong-oval or slightly rhombic leaflets 5-12 cm long, 2.5-5(6) cm wide, somewhat glaucous beneath, with reticulate venation. Peduncles as long as or longer than leaves. Inflorescence a many-flowered raceme. Pedicel as long as calyx. Flowers large, 17-20 mm long, bright orange or rusty-yellow. Calyx broadly campanulate, above at the base inflated hump-like, upper teeth triangular, very short, lower ones lanceolate-subulate, long. Standard contracted slightly above its middle, on broad unguis; wings as long as standard, on long narrow bent unguis; keel triangular-oval, on long unguis. Ovary linear, narrowed toward base, glabrous. Ovules 20-25, style linear, glabrous. Pods smooth, stalked, 6-9 cm long, about 0.5 cm wide. Seeds ovoid-globous, brown, hilum as long as 1/5 of seed circuit. Flowers in June, fruits in July - August. 2n=14.


General distribution: Far East, Japan, China. Former USSR: Far East - Ussuri area.


Forests, forest glades and fringes, shrubberies, herbaceous slopes of dry hills.

Use and economic value.

High-protein forage plant, well eaten by deers.


Shishkin BK., Bobrov EG., ed. 1948. Flora URSS. V.13. P.506. (In Russian).
Kharkevich SS., ed. 1989. Vascular plants of the Soviet Far East. V.4. Leningrad: Nauka. P.311-312. (In Russian).
Cherepanov SK. 1995. Vascular plants of Russia and adjacent states (the former USSR). St.Petersburg. 990 p. (In Russian).

© T.N.Smekalova

© Photo by A.V.Chernyshev(Institute of Marine Biology, Vladivostok)

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