Eranthis

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Eranthis
Winterling-Bluete-70.jpg
Eranthis hyemalis
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Ranunculaceae
Subfamily: Ranunculoideae
Tribe: Cimicifugeae
Genus: Eranthis
Salisb.
Species

See text

Eranthis is a genus of eight species of flowering plants in the buttercup family Ranunculaceae, native to southern Europe and east across Asia to Japan. [1] [2] [3] The common name winter aconite comes from the early flowering time and the resemblance of the leaves to those of the related genus Aconitum , the true aconite. Like the notoriously toxic Aconitum (and, indeed, many other genera of the Ranunculaceae) Eranthis is poisonous, although its chemistry is different, the toxic compounds present being mainly cardiac glycosides of the bufadienolide group similar to those found in Adonis vernalis , rather than the virulent alkaloids of Aconitum. [4] [5]

Contents

Foliage at the end of flowering Eranthis hyemalis.jpg
Foliage at the end of flowering
Distribution map of eight or nine species of Eranthis in Europe and Asia. (Presentation based on natural distribution given in Wikipedia pages (en, de, ru).) Eranthis distribution map.jpg
Distribution map of eight or nine species of Eranthis in Europe and Asia. (Presentation based on natural distribution given in Wikipedia pages (en, de, ru).)

They are herbaceous perennials growing to 10–15 cm (4–6 in) tall. The flowers are yellow (white in E. albiflora and E. pinnatifida), and among the first to appear in spring, as early as January in mild climates, though later where winter snowpack persists; they are frost-tolerant and readily survive fresh snow cover unharmed. The leaves only expand fully when the flowers are nearly finished; they are peltate, 5–8 cm diameter, with several notches, and only last for 2–3 months before dying down during the late spring.

Species in this genus are spring ephemerals, growing on forest floors and using the sunshine available below the canopy of deciduous trees before the leaves come out; the leaves die off when the shade from tree canopies becomes dense, or, in dry areas, when summer drought reduces water availability.

They are popular ornamental plants grown for their winter or early spring flowering. E. hyemalis is widely naturalised in northern Europe and North America.

Species

See also

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References

  1. Schipcz, O. in Fl. U.S.S.R.,7 : 60 (1937).
  2. The Smaller Bulbs Mathew, Brian, pub. Batsford 1987 ISBN   0 7134 4922 5
  3. Growing Bulbs, Rix, Martyn, pub. Timber Press U.S.A. ISBN   0-917304-87-X and Croom Helm U.K. ISBN   0-7099-2248-5 (1983)
  4. STARÝ, František, Poisonous Plants (Hamlyn colour guides) – pub. Paul Hamlyn April, 1984, translated from the Czech by Olga Kuthanová.
  5. "Archived copy". Archived from the original on 2014-03-18. Retrieved 2016-05-11.{{cite web}}: CS1 maint: archived copy as title (link)