Asclepias eriocarpa

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Asclepias eriocarpa
Light:Full Sun Part Shade
Moisture:Xeric Mesic
Hardiness:8
Soil pH:5.6-8.4
Height:3'
Blooms:Mid Summer-Late Summer
Native to:
Edible Rating:PFAF Edibility RatingPFAF Edibility Rating
Medicinal Rating:PFAF Medicinal RatingPFAF Medicinal Rating
Tea:Yes
Poisonous

Asclepias eriocarpa (common name: woollypod milkweed)

Propagation: Seed - best sown in a greenhouse as soon as it is ripe in the autumn or in late winter[1][2]. We have also had good results from sowing the seed in the greenhouse in early spring[K], though stored seed might need 2 - 3 weeks cold stratification[1]. Germination usually takes place in 1 - 3 months at 18°c[1]. As soon as the seedlings are large enough to handle, prick them out into individual pots and grow them on in the greenhouse for their first winter. Plant out when they are in active growth in late spring or early summer and give them some protection from slugs until they are growing away strongly.

Division in spring. With great care since the plant resents root disturbance. Pot the divisions up and place them in a lightly shaded position in the greenhouse until they are growing away strongly, then plant them out in the summer, giving them some protection from slugs until they are established..

Basal cuttings in late spring. Use shoots about 10cm long with as much of their white underground stem as possible. Pot them up individually and place them in a lightly shaded position in a greenhouse until they are rooting and growing actively. If the plants grow sufficiently, they can be put into their permanent positions in the summer, otherwise keep them in the greenhouse until the following spring and when they are in active growth plant them out into their permanent positions. Give them some protection from slugs until they are established.

Cultivation: Prefers a well-drained light rich or peaty soil in full sun[3][4]. Succeeds in poor soils.

This species is not very hardy in Britain, the plants may need root protection in severe winters[3] but if this is applied as a mulch then it should be removed before new growth begins in the spring because plants are particularly at risk from slugs[K].

Many members of this genus seem to be particularly prone to damage by slugs. The young growth in spring is especially vulnerable, but older growth is also attacked and even well-established plants have been destroyed in wet years[K].

Plants resent root disturbance and are best planted into their final positions whilst small[1].

The flower of many members of this genus can trap insects between its anther cells, the struggles of the insect in escaping ensure the pollination of the plant[5].

Range: South-western N. America - California

Habitat: Dry barren places below 2000 metres[6].

Edibility: A gum obtained from the latex in the stems can be used for chewing[7][8][9][10][11]. It is usually boiled in water first until it coagulates and is sometimes mixed with oil[12].

Medicinal: A decoction of the plant, and a salve made from it, is used in the treatment of colds[12].

The milky sap is applied on a regular basis to corns in order to gradually remove them[12]. It is also applied to cuts, sores and warts[12].

The powdered dried roots are inhaled to cause sneezing[12].

Smoke from the burning dried plant is inhaled as a treatment for asthma[12].

Usage: A fibre from the stems is used for ropes, clothing etc[7][8][9][13][12]. The fresh stems are soaked in water, or the dried and decaying stems basted with boiling water, in order to remove the fibre[12].

Rubber can be made from latex in the stems and leaves[7][8][9][10][11]. The leaves contain up to 2.4% latex[14].

Pollinators: Bees, insects, lepidoptera

Soil: Can grow in light soils.

Drainage: Prefers well drained soil.

Flower Type: Hermaphrodite

Known Hazards: Although no specific reports have been seen for this species, many, if not all, members of this genus contain toxic resinoids, alkaloids and cardiac glycosides[15]. They are usually avoided by grazing animals[15]. The plant is said to be poisonous to sh

Also Known As: A. fremontii. A. kotolo.

Links

References

  1. 1.0 1.1 1.2 1.3 Rice, Graham. Growing from Seed Volume 2. Thompson and Morgan, 1988.
  2. Buchanan, Rita. A Weavers Garden.
  3. 3.0 3.1 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  4. Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  5. Coffey, Timothy. The History and Folklore of North American Wild Flowers. Facts on File, 1993.
  6. Munz, David. A California Flora. University of California Press, 1959.
  7. 7.0 7.1 7.2 Uphof, Johannes. Dictionary of Economic Plants. Weinheim, 1959.
  8. 8.0 8.1 8.2 Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.
  9. 9.0 9.1 9.2 Balls, Edward. Early Uses of Californian Plants. University of California Press, 1975.
  10. 10.0 10.1 Yanovsky, Elias. Food Plants of the North American Indians Publication 237. US Department of Agriculture.
  11. 11.0 11.1 Kunkel, Günther. Plants for Human Consumption. Koeltz Scientific Books, 1984.
  12. 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 Moerman, Daniel. Native American Ethnobotany. Timber Press, 1998.
  13. Saunders, Charles. Edible and Useful Wild Plants of the United States and Canada. Dover Publications, 1976.
  14. Whiting, Geraldine. A Summary of the Literature on Milkweeds (Asclepias spp.) and their utilization. US Government Printing Office, 1943.
  15. 15.0 15.1 Diggs, George and Barney Lipscomb. Illustrated Flora of North Central Texas. Botanical Research Institute, 1999.