The Blauhilda Snap Pole Phaseolus vulgaris. Productive, purple podded snap, from Adaptive Seeds.
Blauhilda Snap Pole Phaseolus vulgaris
Phaseolus vulgaris, the common bean (also known as the string bean, field bean, flageolet bean, French bean, garden bean, green bean, haricot bean, pop bean, or snap bean), is a herbaceous annual plant. Grown worldwide for its edible dry seed (known as just “beans”) or unripe fruit (green beans). Raw or under cooked beans contain the toxin phytohaem agglutinin. Its leaf is also occasionally used as a vegetable and the straw as fodder. Its botanical classification, along with other Phaseolus species, is as a member of the legume family Fabaceae, most of whose members acquire the nitrogen they require through an association with rhizobia, a species of nitrogen-fixing bacteria.
The common bean is a highly variable species that has a long history of cultivation. All wild members of the species have a climbing habit, but many cultivars are classified as “bush beans” or “pole beans”, depending on their style of growth. These include the kidney bean, the navy bean, the pinto bean, and the wax bean. The other major types of commercially grown bean are the runner bean and the broad bean.