<unk> , the broad bean, fava bean,<unk>  bean, horse bean, field bean, tic bean is a species of bean <unk> ceae) native to north Africa and southwest Asia, and extensively cultivated elsewhere. Although usually classified in the same genus<unk>  as the vetches, some botanists treat it in a separate monotypic genus as<unk>  sativa Moench.
It is a rigid, erect plant 0.5-1.7 m tall, with stout stems with a square cross-section. The leaves are 10-25 cm long, pinnate with 2-7 leaflets, and of a distinct glaucous grey-green colour; unlike most other vetches, the leaves do not have tendrils for climbing over other vegetation. The flowers are 1-2.5 cm long, with five petals, the standard petal white, the wing petals white with a black spot (true black, not deep purple or blue as is the case in many "black" colourings ), and the keel petals white. The fruit is a broad leathery pod, green maturing blackish-brown, with a densely downy surface; in the wild species, the pods are 5-10 cm long and 1 cm diameter, but many modern cultivars developed for food use have pods 15-25 cm long and 2-3 cm thick. Each pod contains 3-8 seeds; round to oval and 5-10 mm diameter in the wild plant, usually flattened and up to 20-25 mm long, 15 mm broad and 5-10 mm thick in food cultivars.<unk>  has a diploid (2n) chromosome number of 12, meaning that each cell in the plant has 12 chromosomes (6 homologous pairs). Five pairs are acrocentric chromosomes and 1 pair is metacentric.
Vicia faba
Triticum
Chenopodium
Nylon
Exacum affine
Ryegrass
Monilethrix
Vitis vinifera