Canavalia rosea

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Canavalia rosea
Canavalia rosea flower.JPG
Scientific classification
C. rosea
Binomial name
Canavalia rosea

Canavalia maritima Thouars
Canavalia obtusifolia DC.
Dolichos maritimus Aubl.
Dolichos obtusifolius Lam.
Dolichos roseus Sw.[1]

Canavalia rosea is a species of flowering plant of the genus Canavalia in the pea family, Fabaceae, that has a pantropical distribution.[2] Common names include beach bean, bay bean, seaside jack-bean, coastal jack-bean,[1] and MacKenzie bean.[2]

Flower closeup
Dolichos roseus


Coastal jack-bean is a trailing, herbaceous vine that forms mats of foliage. Stems reach a length of more than 6 m (20 ft) and 2.5 cm (0.98 in) in thickness. Each compound leaf is made up of three leaflets 5.1–7.6 cm (2.0–3.0 in) in diameter, which will fold themselves when exposed to hot sunlight. The flowers are purplish pink and 5.1 cm (2.0 in) long. The flat pods are 10.2–15.2 cm (4.0–6.0 in) long and become prominently ridged as they mature. The buoyancy of the seeds allows them to be distributed by ocean currents.[2] The plant seems to contain L-Betonicine.[citation needed]

Habitat and range[edit]

C. rosea inhabits upper beaches, cliffs, and dunes throughout the world's coastal tropics. It is highly salt-tolerant and prefers sandy soils.[2]


  1. ^ a b "Canavalia rosea". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 2010-12-04.
  2. ^ a b c d Christman, Steve (2004-01-14). "#857 Canavalia rosea". Floridata. Retrieved 2010-12-04.

External links[edit]