Colchicum

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"Bulbocodium" redirects here. For the daffodil, see Narcissus bulbocodium.
Colchicum
File:Colchicum speciosum000.jpg
Colchicum speciosum
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Monocots
Order:
Liliales
Family:
Colchicaceae
Genus:
Colchicum
Synonyms[1]
  • Abandium Adans.
  • Bulbocodium L.
  • Celsia Boehm. nom. illeg.
  • Eudesmis Raf. nom. superfl.
  • Fouha Pomel
  • Geophila Bergeret nom. reg.
  • Hermodactylum (R.Br.) Bartl. nom. inval.
  • Merendera Ramond
  • Monocaryum (R.Br.) Rchb.
  • Paludana Salisb. nom. illeg.
  • Synsiphon Regel

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Colchicum (/ˈkɒltʃᵻkəm/ or /ˈkɒlkᵻkəm/[2]) is a genus of perennial flowering plants containing around 160 species which grow from bulb-like corms. It is a member of the botanical family Colchicaceae, and is native to West Asia, Europe, parts of the Mediterranean coast, down the East African coast to South Africa and the Western Cape. In this genus the ovary of the flower is underground. As a consequence, the styles are extremely long in proportion, often more than 10 cm (4 in).

Common names

The common names "autumn crocus", "meadow saffron" and "naked lady" may be applied to the whole genus or to many of its species; they refer to the "naked" crocus-like flowers which appear in late summer or autumn, long before the strap-like foliage which appears in spring.

Colchicum melanthioides is probably the best known species from the tropical regions. In contrast to most temperate colchicums the flower and leaves are produced at the same time, the white flowers are usually a small corymb which is enclosed by white bracts. Close relatives (such as Colchicum scabromarginatum and Colchicum coloratum) have flowers with very short stalks and might be pollinated by rodents.[3]

Cultivation

Temperate colchicums are commonly grown in gardens as ornamental flowers. They include cultivars and hybrids such as:-

  • C. autumnale 'Alboplenum' (white)
  • C. autumnale 'Nancy Lindsay'agm[4] (mauve pink)
  • C. autumnale 'Pleniflorum' (red)
  • C. 'Dick Trotter' (violet with white centre)
  • C. 'Disraeli' (purple white),
  • C. 'Giant' (red with white centre)
  • C. 'Harlekijn' (white with purple band)
  • C. 'Lilac Wonder' (lilac)
  • C. 'Pink Goblet'agm[5] (violet-purple)
  • C. 'Poseidon' (purple)
  • C. 'Rosy Dawn'agm[6] (rose pink)
  • C. 'Violet Queen' (purple)
  • C. 'Waterlily'agm[7] (double, lilac-pink)

(Those marked agm have gained the Royal Horticultural Society's Award of Garden Merit).

In the United Kingdom, the National Collection of colchicums is maintained at Felbrigg Hall, Norfolk.

Medicinal uses and poisonous properties

The plant contains the alkaloid colchicine which is used pharmaceutically to treat gout and Familial Mediterranean fever. The use of the roots and seeds in traditional medicine is thought to have arisen due to the presence of this drug.

Its leaves, corm and seeds are poisonous. Murderess Catherine Wilson is thought to have used it to poison a number of victims in the 19th century.

Species

The following are the species included under Colchicum.[8] Many species previously classified under Androcymbium, Bulbocodium and Merendera were synonymized under Colchicum based on molecular genetic evidence,[9][10][11][12] Androcymbium is currently considered a separate genus.[13]

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References

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  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  11. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  12. ↑ Sunset Western Garden Book, 1995:606–607
  13. ↑ Lua error in package.lua at line 80: module 'strict' not found.

Sources

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