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Brook Thistle

Cirsium rivulare (Jacq.) All.

Cirsium rivulare

provided by wikipedia EN

Cirsium rivulare is a species of flowering plant in the family Asteraceae, native to eastern and western Europe, adventive in Britain, and naturalised in Sweden and Belgium.[1]

Growing to 1.5 m (4.9 ft) tall, this erect herbaceous perennial is a clump-forming thistle, with narrow grey-green prickly leaves and small purple globular flowerheads in early to midsummer. [2]

The Latin specific epithet rivulare means "brook loving".[3] The plant prefers moist conditions but can tolerate some dryness.

The cultivar Cirsium rivulare 'Atropurpureum', with deep crimson flowers, has received the Royal Horticultural Society's Award of Garden Merit.[4] It is very hardy down to at least −20 °C (−4 °F) (RHS rating H7), and thrives in full sun.

References

  1. ^ "Cirsium rivulare". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA).
  2. ^ Brickell, Christopher (2008). The Royal Horticultural Society A-Z encyclopedia of garden plants (3rd ed.). United Kingdom: Dorling Kindersley. ISBN 9781405332965.
  3. ^ Harrison, Lorraine (2012). RHS Latin for Gardeners. United Kingdom: Mitchell Beazley. ISBN 184533731X.
  4. ^ "Cirsium rivulare 'Atropurpureum'". RHS. Retrieved 12 April 2020.
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Cirsium rivulare: Brief Summary

provided by wikipedia EN

Cirsium rivulare is a species of flowering plant in the family Asteraceae, native to eastern and western Europe, adventive in Britain, and naturalised in Sweden and Belgium.

Growing to 1.5 m (4.9 ft) tall, this erect herbaceous perennial is a clump-forming thistle, with narrow grey-green prickly leaves and small purple globular flowerheads in early to midsummer.

The Latin specific epithet rivulare means "brook loving". The plant prefers moist conditions but can tolerate some dryness.

The cultivar Cirsium rivulare 'Atropurpureum', with deep crimson flowers, has received the Royal Horticultural Society's Award of Garden Merit. It is very hardy down to at least −20 °C (−4 °F) (RHS rating H7), and thrives in full sun.

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Bee on 'Atropurpureum' flower

Cirsium rivulare flower.JPG
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