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Seabean

Mucuna gigantea

Also called Burny bean, Black Bean, Velvet Bean

Seabean
Photo: Forest & Kim Starr, CC BY 3.0

Seabean is a large woody twining climber from the pea family, growing up to about 30 m in tropical coastal and forest habitats. It needs warm, humid conditions and ample space, and it is rarely grown as a houseplant.

Family
Fabaceae (Pea & bean family)
Grows as
Climber
Light
Full sun, Part shade
Water
Keep the soil evenly moist while growing and water less in dry periods; avoid waterlogging.
Soil
Well-drained, fertile loam or a rich potting mix.
Temperature
20–30 °C; protect below 15 °C
How easy
Moderate
Safety
Toxic: The fine orange-brown hairs on new growth, flowers and pods cause intense skin irritation, and the hairs have been used as a poison; handle with gloves.
Native range
Kenya to S. Africa and Pacific
Climate
wet tropical

About

Mucuna gigantea, commonly known as burny bean, burney bean, velvet bean or sea bean is a species of liana from the legume family Fabaceae. Its natural range roughly follows the perimeter of the Indian Ocean and includes Africa, India, Malesia, New Guinea and northern Australia. Many parts of the plant—in particular the new growth, flowers and fruit—are covered in fine irritant hairs.

Where it grows

Mucuna gigantea occurs in tropical Africa, southwestern and southern Asia, and Oceania. In Africa its range extends from the Republic of Congo to Kenya, Tanzania and Madagascar. In Asia, its range includes India, Myanmar, Malaysia, Thailand and the Philippines. In Oceania it is found in New Guinea, the states of Western Australia, the Northern Territory, Queensland and New South Wales in Australia, and numerous Pacific islands.

Uses

After suitable preparation, the seeds are eaten in Kenya and India. Aboriginal Australians bake them on hot stones, and having removed the skin, grind them into flour, mix this with water, wrap the dough in leaves and further bake it. An extract of the root has been used against schistosomiasis and gonorrhea, and the powdered seeds have been used as a laxative. The intensely irritating hairs from the pods have been used as poison in Malaysia, and have been mixed with food for control of rats.

Other Mucuna plants

New Guinea Creeper · Mucuna bracteata · Mucuna flagellipes · Hamburger Bean · Mucuna interrupta · Mucuna monosperma · Mucuna paniculata · Cowitch · Mucuna sanjappae · Oxeye bean · Mucunas

Text excerpted from the Wikipedia article Mucuna gigantea by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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