Amphicarpaea bracteata

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Amphicarpaea bracteata
Light:Part Shade Full Shade
Moisture:Mesic
Hardiness:7
Soil pH:5.6-8.4
Height:5'
Blooms:Late Summer-Early Fall
Open Woods Forest
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

Amphicarpaea bracteata (common name: hog peanut)

Propagation: Seed - pre-soak for 12 hours in warm water and then sow in spring in a semi-shaded position in a greenhouse. Germination usually takes place within a few weeks. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter, planting them out in late spring or early summer.

Division. We have been unable to divide this plant because it only makes a small taproot. However, many of the seeds are produced under the ground and these can be harvested like tubers and potted up to make more plants.

Cultivation: Requires a moist humus-rich soil in a shady position[1].

The young shoots in spring can be damaged by late frosts[K].

The hog peanut has occasionally been cultivated for its edible seed which has been used as a peanut substitute[2]. Yields at present, however, are rather low[K]. Two types of blossom are produced by the plant - those produced from the leaf axils mostly abort but a few seeds are produced[3]. Solitary, inconspicuous cleistogamous flowers are produced on thread-like stems near the root and, after flowering, the developing seedpods bury themselves into the soil in a manner similar to peanuts[3][4].

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: Eastern N. America - New Brunswick to Florida, west to Manitoba and Louisiana.

Habitat: Cool damp woodlands[5][1].

Edibility: Seed - raw or cooked[6][7]. Two types of seed are produced - flowers produced near the ground produce a pod that buries itself just below soil level. These pods contain a single seed are up to 15mm in diameter which can be used as a peanut substitute. They can be harvested throughout the winter and can be eaten raw or cooked[6][8][3][7]. They are sweet and delicious raw with a taste that is more like shelled garden beans than peanuts[2]. Yields are rather low, and it can be a fiddle finding the seeds, but they do make a very pleasant and nutritious snack[K].

Other flowers higher up the plant produce seed pods that do not bury themselves. The seeds in these pods are much smaller and are usually cooked before being eaten[3][2]. They can be used in all the same ways as lentils and are a good source of protein[K]. The overall crop of these seeds is rather low and they are also fiddly to harvest[K].

Root - cooked[9][10]. The root is peeled, boiled and then eaten[10]. Fleshy and nutritious according to one report[1], whilst another says that the root is too small to be of much importance in the diet[10]. Our plants have only produced small and stringy roots[K].

Medicinal: An infusion of the root has been used in the treatment of diarrhoea[10]. Externally, the root has been applied to bites from rattlesnakes[10].

A poultice of the pulverized leaves has been applied with any salve to swellings[10].

Pollinators: Insects

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

In Leaf: Late Spring-Mid Fall

Seed Ripens: Early Fall-Mid Fall

Flower Type: Hermaphrodite

Also Known As: A. monoica. (L.)Ell. Falcata comosa. (L.)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 2.2 Facciola, Stephen. Cornucopia - A Source Book of Edible Plants. Kampong Publications, 1990.
  3. 3.0 3.1 3.2 3.3 Saunders, Charles. Edible and Useful Wild Plants of the United States and Canada. Dover Publications, 1976.
  4. Diggs, George and Barney Lipscomb. Illustrated Flora of North Central Texas. Botanical Research Institute, 1999.
  5. Lyndon, Merritt. Gray's Manual of Botany. American Book Co, 1950.
  6. 6.0 6.1 Hedrick, Ulysses. Sturtevant's Edible Plants of the World. Dover Publications, 1972.
  7. 7.0 7.1 Yanovsky, Elias. Food Plants of the North American Indians Publication 237. US Department of Agriculture.
  8. Howes, Frank. Nuts. Faber, 1948.
  9. Kunkel, Günther. Plants for Human Consumption. Koeltz Scientific Books, 1984.
  10. 10.0 10.1 10.2 10.3 10.4 10.5 Moerman, Daniel. Native American Ethnobotany. Timber Press, 1998.