Latin name: Canavalia maritima (Aubl.) chou.

Alias: Oxycana

Chinese name: Oxycana

Latin name: Canavalia

Chinese name: Leg

Corradin name. Widely distributed in tropical coasts.

habitat: I like to be born on sandy soil near the sea, beside villages, among trees along the river bank, and flat land is also common.

toxicity: pods and seeds are toxic. People are dizzy and vomiting after poisoning, and in severe cases, they are unconscious. Pods and seeds can be eaten after boiling with water and rinsing with clear water, but they are often poisoned due to improper processing.

chemical composition: the seeds contain .2-4.4% of the toxic amino acid canavanine (48-1), and the lethal dose to mice is 2g/kg.

morphological characteristics: climbing vines; Stems glabrous, up to 3m long. The compound leaves and leaflets are obovate or broadly elliptic, the base of terminal leaflets is wedge-shaped, the base of lateral leaflets is oblique, and the reticular veins are obvious. Racemes as long as 2cm or longer; 1-3 flowers are born at the top of inflorescence, and the corolla is pink. The pod is about 1cm long and 2．5cm wide, with 3 longitudinal ribs on the back. Seeds oval, slightly flat, brown, with linear hilum. The flowering period is summer and autumn, and the fruit period is autumn and winter. . Stipules are small and inconspicuous; Leaflets obovate, 5-8 cm long and 4.5-6.5 cm wide, with dense and obvious reticular veins. Racemes; Bracteoles 2; Calyx bell-shaped; Corolla pink, flag petal round, wing petal sickle-shaped oblong, keel petal obtuse. Pods have short fruit stalks and ovary stalks, which swell at maturity.

The flower is pink and beautiful, and looks like a kidney bean, but the leaflets are thick and blunt, and the pods are shorter and narrower than the kidney bean.

This species is a poisonous plant listed in China Botanical Atlas Database, and its toxicity is that pods and seeds are poisonous. People are dizzy and vomiting after poisoning, and in severe cases, they are unconscious. Pods and seeds can be eaten after boiling with water and rinsing with clear water, but they are often poisoned due to improper processing.