Desmanthus illinoensis

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Desmanthus illinoensis
Light:Full Sun
Moisture:Mesic
Hardiness:4
Soil pH:5.6-8.4
Height:4'
Blooms:Late Spring-Mid Summer
Native to:
Nitrogen Fixer
Edible Rating:PFAF Edibility RatingPFAF Edibility RatingPFAF Edibility RatingPFAF Edibility RatingPFAF Edibility Rating
Medicinal Rating:PFAF Medicinal RatingPFAF Medicinal RatingPFAF Medicinal RatingPFAF Medicinal RatingPFAF Medicinal Rating
Tea:Yes
Poisonous

Desmanthus illinoensis (common name: prairie mimosa)

Propagation: Seed - pre-soak for 12 hours in warm water and then sow in a cold frame in the spring. Prick out the seedlings into individual pots as soon as they are large enough to handle and plant them out into their permanent positions in early summer.

If you have sufficient seed then it is probably worthwhile sowing some in situ in mid to late spring.

Cultivation: Requires a moist but well-drained soil in full sun[1]. Plants are often found growing in clay soils in the wild[2].

Suitable for the wild garden or other naturalistic plantings[1]. In favourable situations this plant can self-sow to the point of nuisance[1].

This plant is being evaluated by the Land Institute of Salina, Kansas, as an edible legume for growing with perennial grains in a non-tillage permaculture system[3]. It is certainly worthy of more attention in this country, though the small seed size mitigates against its use[K].

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[1].

Range: N. America - Ohio to N. Dakota, New Mexico to Mississippi.

Habitat: Prairies, river banks and fields[4][5]. Ditches, stream bottoms, fields, roadsides and low areas, often on clay soils[2].

Edibility: Seed - cooked. Rich in protein but without much flavour[3]. The seedpods are about 25mm long and contain 3 - 5 small seeds[5]. They are freely borne in the plants native environment, but will have to be very freely produced in this country if it is to be a worthwhile crop[K].

Medicinal: A leaf tea has been used in the treatment of itchy skin[4][6].

Five seeds have been placed in the eye at night and washed out in the morning to treat trachoma[6].

Pollinators: Insects

Notes: The seed is very small, but the plant must have potential.

Soil: Can grow in light, medium, and heavy soils.

Drainage: Prefers well drained soil.

Flower Type: Hermaphrodite

Heavy Clay: Grows in heavy-clay soils.

Also Known As: D. brachylobus. Acuan illinoensis. (Michx.)Kuntze.

Links

References

  1. 1.0 1.1 1.2 1.3 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  2. 2.0 2.1 Diggs, George and Barney Lipscomb. Illustrated Flora of North Central Texas. Botanical Research Institute, 1999.
  3. 3.0 3.1 Facciola, Stephen. Cornucopia - A Source Book of Edible Plants. Kampong Publications, 1990.
  4. 4.0 4.1 Foster, Steven and Billy Tatum. Medicinal Plants of Eastern and Central North America. Houghton Mifflin, 1990.
  5. 5.0 5.1 Britton, Nathaniel and Addison Brown. An Illustrated Flora of the Northern United States and Canada. Dover Publications, 1970.
  6. 6.0 6.1 Moerman, Daniel. Native American Ethnobotany. Timber Press, 1998.