Please donate to support our ‘Plants to Save the Planet’ Project. The Project is directed at enabling designers of ‘carbon farms’ and ‘food forests’: agroecosystems of perennial plants, to choose the most appropriate plants for their requirements and site conditions. We are working on a subset of plants in the PFAF database identified as having the most potential for inclusion in such designs. We are adding search terms and icons to those plants pages, and providing a range of search options aligned to categories of plants and crop yields, with Help facilities including videos. More >>>

Follow Us:

 

Phaseolus polystachios - (L.) Britton et al

Common Name Thicket Bean. Wild bean
Family Fabaceae
USDA hardiness 6-10
Known Hazards We have seen no specific reports for this species, but the mature seed of most, if not all, members of this genus contain various anti-nutritional factors. Soaking the seeds, discarding the water and then boiling them and discarding the water will remove these toxins and render the seeds safe and nutritious[K Plants for a Future Author Ken Fern Description Notes from observations, tasting etc at Plants For A Future and on field trips. ].
Habitats A temperate plant. It grows in dry woods and sandy thickets. Climbing on shrubs and young trees in moist thickets, clearings and edges of deciduous forests, in deep swamps and sometimes on dry sandy, dry shale and rocky hillsides[1555 ].
Range North America, Mesoamerica. Eastern and southern N. America - Iowa to Maine, south to Texas and Florida
Edibility Rating    (2 of 5)
Other Uses    (3 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care
Fully Hardy Moist Soil Semi-shade Full sun
Phaseolus polystachios Thicket Bean. Wild bean


botanicimage.com
Phaseolus polystachios Thicket Bean. Wild bean
Fritzflohrreynolds wikimedia.org

 

Translate this page:

Summary

Phaseolus polystachios is a herbaceous perennial climbing plant. In spite of its common name, it is more closely related to the lima bean (Phaseolus lunatus), and it holds potential as a crop wild relative due to its resistance to white mold (Sclerotinia sclerotiorum).


Physical Characteristics

 icon of manicon of climber
Phaseolus polystachios is a CLIMBER growing to 3 m (9ft) by 0.2 m (0ft 8in) at a fast rate.
It is hardy to zone (UK) 7. The flowers are pollinated by Insects.
It can fix Nitrogen.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Dolichos polystachios L. Phaseolus sinuatus Torr. & A.Gray

Habitats

Edible Uses

Edible Parts: Seed  Seedpod
Edible Uses:

Edible Portion: The seeds are eaten, fresh or dried. Seeds - cooked[1438 ]. The elongate seedpod can be 70mm long and 12 mm wide, containing black, squarish seeds around 6mm long, 6 - 7mm wide and 4mm thick[1555 ]. Carbon farming - Staple Crop: protein.

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.


None Known

Our new book Edible Shrubs is now available.

Edible Shrubs provides detailed information, attractively presented, on over 70 shrub species. They have been selected to provide a mix of different plant sizes and growing conditions. Most provide delicious and nutritious fruit, but many also have edible leaves, seeds, flowers, stems or roots, or they yield edible or useful oil.

Read More

Edible Shrubs Book

Other Uses

Carbon farming - Agroforestry Services: nitrogen.

Special Uses

Carbon Farming  Food Forest

Cultivation details

Agroforestry Services: Nitrogen  Historic Crop  Management: Standard  Staple Crop: Protein

Climate: cold temperate to tropical. Humidity: humid. Found in the wild on a range of soils from clays to sands[1555 ]. This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[755 ]. Carbon Farming - Cultivation: historic crop. Management: standard. For polyculture design as well as the above-ground architecture (form - tree, shrub etc. and size shown above) information on the habit and root pattern is also useful and given here if available. Growth habit is a single or multiple shooting vine from a crown [1-2]. Herbaceous.

Carbon Farming

  • Agroforestry Services: Nitrogen  Plants that contribute to nitrogen fixation include the legume family – Fabaceae.
  • Historic Crop  These crops were once cultivated but have been abandoned. The reasons for abandonment may include colonization, genocide, market pressures, the arrival of superior crops from elsewhere, and so forth.
  • Management: Standard  Plants grow to their standard height. Harvest fruit, seeds, or other products. Non-Destructive management systems.
  • Staple Crop: Protein  (16+ percent protein, 0-15 percent oil). Annuals include beans, chickpeas, lentils, cowpeas, and pigeon peas. Perennials include perennial beans, nuts, leaf protein concentrates, and edible milks.

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Fahrenheit:

image

The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.

Shop Now

Propagation

Like many species within the family Fabaceae, once they have ripened and dried the seeds of this species may benefit from scarification before sowing in order to speed up and improve germination. This can usually be done by pouring a small amount of nearly boiling water on the seeds (being careful not to cook them!) and then soaking them for 12 - 24 hours in warm water. By this time they should have imbibed moisture and swollen - if they have not, then carefully make a nick in the seedcoat (being careful not to damage the embryo) and soak for a further 12 hours before sowing[K ].

Other Names

If available other names are mentioned here

Thicket Bean. Wild bean. Wild kidney bean

Found In

Countries where the plant has been found are listed here if the information is available

North America, USA.

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

None Known

Conservation Status

IUCN Red List of Threatened Plants Status : Status: Least Concern

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Phaseolus coccineusRunner Bean, Scarlet runnerPerennial3.0 10-12 FLMHNM402
Phaseolus lunatusLima Bean, Sieva beanPerennial Climber0.0 10-12  LMHNM212
Phaseolus vulgarisFrench Bean, Kidney beanAnnual2.0 10-12  LMHNM322

 

Print Friendly and PDF

Expert comment

Author

(L.) Britton et al

Botanical References

Links / References

For a list of references used on this page please go here
A special thanks to Ken Fern for some of the information used on this page.

Readers comment

QR Code

What's this?

This is a QR code (short for Quick Response) which gives fast-track access to our website pages. QR Codes are barcodes that can be read by mobile phone (smartphone) cameras. This QR Code is unique to this page. All plant pages have their own unique code. For more information about QR Codes click here.

1. Copy and print the QR code to a plant label, poster, book, website, magazines, newspaper etc and even t-shirts.

2. Smartphone users scan the QR Code which automatically takes them to the webpage the QR Code came from.

3. Smartphone users quickly have information on a plant directly for the pfaf.org website on their phone.

Add a comment

If you have important information about this plant that may help other users please add a comment or link below. Only comments or links that are felt to be directly relevant to a plant will be included. If you think a comment/link or information contained on this page is inaccurate or misleading we would welcome your feedback at admin@pfaf.org. If you have questions about a plant please use the Forum on this website as we do not have the resources to answer questions ourselves.

* Please note: the comments by website users are not necessarily those held by PFAF and may give misleading or inaccurate information.

To leave a comment please Register or login here All comments need to be approved so will not appear immediately.

Subject : Phaseolus polystachios  
All the information contained in these pages is Copyright (C) Plants For A Future, 1996-2012.
Plants For A Future is a charitable company limited by guarantee, registered in England and Wales. Charity No. 1057719, Company No. 3204567,
Web Design & Management
This work is licensed under a Creative Commons License. Some information cannot be used for commercial reasons or be modified (but some can). Please view the copyright link for more information.