Phaseolus coccineus L.

Runner Bean

Perennial climbing herb (generally grown as an annual). Flowers many-flowered racemes that are longer than the leaves. Flowers with corolla to 3 cm or so long, scarlet, sometimes with white wings, the beak twisted around 1-1.5 times. Leaflets over 10 cm long, ovate. Fruit elongated, to 20-30 cm or so long; seeds mostly broad, to about 2.5 cm long.

Tropical America.

P. vulgaris is very similar but generally has smaller elongated seeds to 1.5 cm long; P. lunatus L. is the important edible Butter Bean (Lima Bean) from tropical S America. It is an erect or twining plant grown as an annual with white or yellow flowers and 2-4 kidney-shaped beans per pod.

Source: Spencer, R. (2002). Fabaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.

Hero image
kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Fabales
family       Fabaceae
genus        Phaseolus L.