'''Acanthus''' is a
genus of about 30 species of
flowering plants in the family
Acanthaceae, native to tropical and warm temperate regions of the
Old World, with the highest species diversity in the
Mediterranean region and
Asia. Common names include 'Acanthus' and 'Bear's breeches'.
The genus comprises
herbaceous perennial plants, rarely
subshrubs, with spiny leaves and flower
spikes bearing white or purplish flowers. Size varies from 40 cm, up to 2 m tall. An example of one such plant is the 'Shrimp Plant' which can be found in the state of Florida in the United States.
;Selected species
★ ''
Acanthus balcanicus''
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Acanthus dioscoridis''
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Acanthus eminens''
★ ''
Acanthus hirsutus''
★ ''
Acanthus hungaricus''
★ ''
Acanthus ilicifolius''
★ ''
Acanthus mollis''
★ ''
Acanthus montanus''
★ ''
Acanthus polystachyus''
★ ''
Acanthus spinosus''
★ ''
Acanthus syriacus''
Cultivation and uses

''Acanthus mollis'' flowering in the ruins of the
Palatine Hill, Rome, May 2005
Several species, especially ''A. spinosa'' and ''A. mollis'', are grown as
ornamental plants.
The foliage is the basis of a style of architectural ornamentation; see
acanthus (ornament).
References
★
Flora Europaea: ''Acanthus''
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Germplasm Resources Information Network: ''Acanthus''
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Images of Acanthus