Holland beans eaten raw will not be poisoned, peas (PisumsativumL.), legume peas annual climbing herbaceous plants. Plant height 0.5-2 meters, stipules leafy, heart-shaped; leaves with 4-6 leaflets, leaflets ovoid. Calyx campanulate, lobes lanceolate; corolla of various colors, mostly white and purple; pods swollen, long ellipsoid, apically obliquely acute; seeds orbicular, greenish, wrinkled or absent, drying to yellow. Flowering in June-July, fruiting in July-September, the "Compendium of Materia Medica" said "the seedling of the soft Wanwanwan, so the name of the pea", from which the pea name. Peas are native to western Asia and the Mediterranean coastal areas, the history of pea cultivation at least 6,000 years ago, the legend of the Han Dynasty, Zhang Qian mission to the Western Regions of peas planted in China, the first by the Western Regions into the northwest region of China, and then into the interior, planting has been more than 3,000 years of history.