Practical
Plants

Opuntia compressa

Eastern Prickly Pear

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Taxonomy and growth

Family
Cactaceae
Genus
Opuntia
Life cycle
perennial
Foliage
evergreen
Height
0.2 m
Spread
1 m
Fertility
Insects
Flower type
hermaphrodite
Pollinators
Insects

Uses

Toxicity

Toxicity warning. The historical record reports a hazard for this plant. Do not use it to decide which parts are safe to eat or use medicinally.

The plant has numerous minutely barbed glochids (hairs) that are easily dislodged when the plant is touched and they then become stuck to the skin where they are difficult to see and remove. They can cause considerable discomfort[3].

Edible uses

Fruit - raw, cooked or dried for later use[7][8][9][10][2]. Sweet and gelatinous[12]. Lean and insipid[14]. The unripe fruits can be added to soups etc, imparting an okra-like mucilaginous quality[2]. The fruit can hang on the plant all year round[1]. The fruit is up to 4cm long and 3cm wide[3]. Be careful of the plants irritant hairs, see the notes above on toxicity. Pads - cooked or raw[10][1]. Watery and very mucilaginous[12]. Seed - briefly roasted then ground into a powder[10]. It is also used as a thickener[10].

Plant part
Fruit
Plant part
Leaves
Plant part
Seed

Medicinal uses

Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.

A poultice of the peeled pads is applied to wounds, sores etc[5]. The juice of the fruits is used as a treatment for warts[5]. A tea made from the pads is used in the treatment of lung ailments[5].

Product or use
Pectoral
Product or use
Poultice
Product or use
Warts

Material uses

The following notes are for O. ficus indica. They almost certainly also apply to this species[K]. A gum is obtained from the stem. It is used as a masticatory or can be mixed with oil to make candles[11][4]. The juice of the boiled stem segments is very sticky. It is added to plaster, whitewash etc to make it adhere better to walls[13].

Product or use
Gum

Environment

Range
North-eastern N. America. Naturalized on rocks and walls in S. and S.C. Europe.
Habitat
Opn dry areas[6]. Rocky bluffs, sand dunes, dry rocky or sandy grasslands.
Light
full sun
Shade tolerance
no shade
Water
low
Hardiness
Zone 4+
Soil textures
sandy, loamy
Soil pH
acid, neutral, alkaline
Drainage
well drained
Tolerances
high wind, drought
Wind
Yes
Tolerates Nutritionally Poor Soil
No
Drought
tolerant

Propagation

Seed - sow early spring in a very well-drained compost in a greenhouse. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first two winters. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Give the plants some protection from winter wet. Make sure you have some reserve plants in case those outdoors do not overwinter. Cuttings of leaf pads at any time in the growing season. Remove a pad from the plant and then leave it in a dry sunny place for a couple of days to ensure that the base is thoroughly dry and has begun to callous. Pot up into a sandy compost. Very easy, rooting quickly.

Cultivation

Requires a sandy or very well-drained soil[1]. Prefers a pH in the range 6 to 7.5[3]. Must be kept fairly dry in winter but likes a reasonable supply of water in the growing season[3]. A position at the base of a south-facing wall or somewhere that can be protected from winter rain is best for this plant. Requires warmth and plenty of sun. Plants tolerate considerable neglect. Plants are very cold-hardy, tolerating temperatures down to about -30°c[1], but they are intolerant of winter wet. There is considerable confusion over the correct name for this species, several of the synonyms listed above are also applied to other species in this genus.

References

  1. Natural Food Institute, Wonder Crops. 1987.

    ↩1↩2↩3↩4

  2. Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications 1990-00-00 ISBN 0-9628087-0-9

    ↩1↩2

  3. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

    ↩1↩2↩3↩4

  4. Coffey. T. The History and Folklore of North American Wild Flowers. Facts on File. 1993-00-00 ISBN 0-8160-2624-6

    ↩

  5. Foster. S. & Duke. J. A. A Field Guide to Medicinal Plants. Eastern and Central N. America. Houghton Mifflin Co. 1990-00-00 ISBN 0395467225

    ↩1↩2↩3

  6. Diggs, Jnr. G.M.; Lipscomb. B. L. & O'Kennon. R. J Illustrated Flora of North Central Texas Botanical Research Institute, Texas. 1999-00-00 http://artemis.austincollege.edu/acad/bio/gdiggs/NCTXpdf.htm

    ↩

  7. Simmons. A. E. Growing Unusual Fruit. David and Charles 1972-00-00 ISBN 0-7153-5531-7

    ↩

  8. Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim 1959-00-00

    ↩

  9. Usher. G. A Dictionary of Plants Used by Man. Constable 1974-00-00 ISBN 0094579202

    ↩

  10. Elias. T. and Dykeman. P. A Field Guide to N. American Edible Wild Plants. Van Nostrand Reinhold 1982-00-00 ISBN 0442222009

    ↩1↩2↩3↩4

  11. Howes. F. N. Vegetable Gums and Resins. Faber

    ↩

  12. Harrington. H. D. Edible Native Plants of the Rocky Mountains. University of New Mexico Press 1967-00-00 ISBN 0-8623-0343-9

    ↩1↩2

  13. Balls. E. K. Early Uses of Californian Plants. University of California Press 1975-00-00 ISBN 0-520-00072-2

    ↩

  14. Saunders. C. F. Edible and Useful Wild Plants of the United States and Canada. Dover Publications 1976-00-00 ISBN 0-486-23310-3

    ↩

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