Anemone hepatica

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Anemone hepatica (syn. Hepatica nobilis), the common hepatica, liverwort,[1] liverleaf,[2] kidneywort, or pennywort, is a species of flowering plant in the buttercup family Ranunculaceae, native to woodland in temperate regions of the Northern Hemisphere. This herbaceous perennial grows from a rhizome.

Description

File:Hepatica nobilis flowers - blue and pink - Keila.jpg
Blue and pink Anemone hepatica flowers
File:Hepatica nobilis white flower - Keila.jpg

Anemone hepatica grows Script error: No such module "convert". high. Leaves and flowers emerge directly from the rhizome, not from a stem above ground.

The leaves have three lobes and are fleshy and hairless, Script error: No such module "convert". wide and Script error: No such module "convert". long. The upper side is dark green with whitish stripes and the lower side is violet or reddish brown. Leaves emerge during or after flowering and remain green through winter.

The flowers are blue, purple, pink, or white and appear in winter or spring. They have five to ten oval showy sepals and three green bracts.Script error: No such module "Unsubst".

Taxonomy

The taxonomy of the genus Anemone and its species is not fully resolved, but phylogenetic studies of many species of Anemone and related genera[3] indicate that species of the genus Hepatica should be included under Anemone because of similarities both in molecular attributes and other shared morphologies.[4] The circumscription of the taxon is also debated, some authors listing the North American var. acuta[5] and var. obtusa,[6] while other list them as the separate species A. acutiloba and A. americana, respectively.[7]

Varieties

Varieties of Anemone hepatica that are sometimes recognized include:[8]

  • Anemone hepatica var. japonica, a synonym of Hepatica nobilis var. japonica NakaiScript error: No such module "Check for unknown parameters"., is native to the Russian Far East, China, Korea, and JapanTemplate:R[9]
  • Anemone hepatica var. acuta, a synonym of Hepatica acutiloba DC.Script error: No such module "Check for unknown parameters"., is native to eastern North AmericaTemplate:R
  • Anemone hepatica var. obtusa, a synonym of Hepatica americana (DC.) Ker Gawl.Script error: No such module "Check for unknown parameters"., is native to eastern North AmericaTemplate:R

Distribution and habitat

It is found in woods, thickets and meadows, especially in the mountains of continental Europe, North America and Japan.Script error: No such module "Unsubst".

Ecology

Hepatica flowers produce pollen but no nectar. In North America, the flowers first attract Lasioglossum sweat bees and small carpenter bees looking in vain for nectar. Then when the stamens begin to release pollen, the bees return to collect and feed on pollen. Mining bees sometimes visit the flowers, but prefer flowers that produce both nectar and pollen.[10]Script error: No such module "Unsubst".

Toxicity

Like other Ranunculaceae, fresh liverwort contains protoanemonin and is therefore slightly toxic. By drying the herb, protoanemonin is dimerized to the non-toxic anemonin.Script error: No such module "Unsubst".

Uses

Medieval herbalists believed it could be used to treat liver diseases, and may be used in current folk medicine.Script error: No such module "Unsubst".[11]

Under the name Hepatica nobilis, which is regarded as a synonym, this plant has gained the Royal Horticultural Society's Award of Garden Merit.[12]

Culture

It is the official flower of the Sweden Democrats political party in Swedish politics.Script error: No such module "Unsubst".

Gallery

References

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  1. ↑ Script error: No such module "Citation/CS1".
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  4. ↑ Template:EFloras
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  12. ↑ Script error: No such module "citation/CS1".

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External links

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