The shape of the bean horn is slender and linear, a few grow to a certain stage will be curved moon shape, the color is green, some will be purplish-red, the surface is smoother and hairless, the touch has a certain texture pods are pendulous, erect or obliquely spreading, length of 7.5 ~ 70 cm, width of 6 ~ 10 mm, slightly fleshy and swollen or firm.

There are many seeds; the seeds are long oval or cylindrical or slightly reniform, 6~12 mm long, yellowish white, dark red or other colors. The bean is an annual vegetable of the genus Cowpea in the family Leguminosae of the order Rosaceae. It is also known as cowpea, long cowpea, and banded bean.

Douglas Classification

1, Cowpea

Douglas, also known as bean horn, cowpea, long cowpea, and banded bean, is an annual vegetable in the family Leguminosae. There are three kinds of stems: dwarf, semi-trailing and trailing. Southern cultivation is mainly trailing, followed by dwarf.

2, four season beans

Four season beans, also known as kidney beans, kidney beans, rack beans, jade beans, kidney lentils, April beans, etc., for annual herbs. In Zhejiang Quzhou called Qingming beans, in Sichuan and some central China called four season beans, is one of the common vegetables on the table.

3, white not old

White not old, also known as the old to be young, super white frame beans, king of the king white large frame, with flower seeds, yellow seeds, white seeds, soil gray seeds. It is also a variety of bean that is characterized by its greenish-white color, larger grains and sparse pods.

4, lentils

Lentils, also known as emei beans, magpie beans, etc. Native to India, China has a long history of cultivation .