''Phaseolus dumosus'', the year bean or year-long bean,
is an annual to perennial herbaceous vine in the family
Fabaceae (legumes), native to a narrow region in the highlands of
Guatemala.
It is one of the five ''
Phaseolus'' domesticates and is similarly used for its beans.
It was recently found to be a hybrid between two other cultivated species of Central America, ''
Phaseolus coccineus
''Phaseolus coccineus'', known as runner bean, scarlet runner bean, or multiflora bean, is a plant in the legume family, Fabaceae. Another common name is butter bean, which, however, can also refer to the lima bean, a different species.
It is ...
'' and ''
P. vulgaris'' and displays intermediate characteristics.
Taxonomically, it was previously categorized as ''
Phaseolus polyanthus'' and ''P. coccineus'' ssp. ''darwinianus''.
This species grows in humid forests and may reach 10 meters in length. It is visited by carpenter bees.
References
dumosus
{{Phaseoleae-stub