Ivory red, Erythrina in Leguminosae, shrub or small tree, up to 4 meters high. The flowers are big, red and 4 ~ 6 cm long; Calyx bell-shaped, mouth oblique, with spiny calyx teeth; The petals are uneven in length, and the flag petals are oval, 4.5 ~ 6 cm long; Stamens 10, diploid; Ovary stipitate, white pilose, style bent upward, stigma capitate. Pod band, 10 cm long; The seeds are dark red with black spots. The flowering period is from June to July.

Erythrina , Leguminosae deciduous tree, Erythrina, about 20 meters high, gray dry skin, conical thorns. It blooms in March. The pods are beaded and the seeds are red.