Psoralea pedunculata
| Psoralea pedunculata | |
| Light: |  |
| Moisture: |   |
| Soil pH: | 5.6-8.4 |
| Height: | 3' |
| Native to: | |
| Nitrogen Fixer | |
| Medicinal Rating: | |
| Tea: | Yes |
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Psoralea pedunculata (common name: sampson's snakeroot)
Propagation: Pre-soak the seed for 24 hours in warm water and then sow in early to mid spring in a greenhouse. Either sow the seed in individual pots or pot up the young seedlings as soon as possible in order to avoid root disturbance. Grow them on in the pots until planting out in their final positions. It is usually impossible to transplant this species without fatal damage to the root[1].
Division in spring. With great care since the plant resents root disturbance. It is virtually impossible to divide this species successfully[1].
Cultivation: We have very little information for this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in many parts of the country. Some botanists have moved this plant into a different genus, where it is called Orbexilum pedunculatum[2]. The following notes are based on the general needs of the genus.
Succeeds in an ordinary garden soil[3]. Requires a well-drained soil in a sunny position[1].
Plants are very intolerant of root disturbance, they are best planted out into their permanent positions whilst still small[1].
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 - Virginia to Ohio, Illinois and Kansas, south to Florida and Texas.
Habitat: Damp or dry sandy soils in open woods, clearings and fields[4][2].
Medicinal: Bitter tonic.
Pollinators: Insects
Soil: Can grow in light, medium, and heavy soils.
Drainage: Prefers well drained soil.
Flower Type: Hermaphrodite
Known Hazards: Although no specific mention of toxicity for this species has been found, at least some members of this genus contain furanocoumarins, these substances can cause photosensitivity in some people[5].
Also Known As: P. psoralioides. (Walt.)Cory.
Links
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ 2.0 2.1 Diggs, George and Barney Lipscomb. Illustrated Flora of North Central Texas. Botanical Research Institute, 1999.
- ↑ Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
- ↑ Lyndon, Merritt. Gray's Manual of Botany. American Book Co, 1950.
- ↑ Frohne, Dietrich and Hans Pfänder. J. A Colour Atlas of Poisonous Plants. Timber Press, 1984.