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From Wikipedia, the free encyclopedia

Arabis
Arabis ferdinandi-coburgii.JPG
Arabis ferdinandi-coburgii
Scientific classification
Kingdom:
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Order:
Family:
Genus:
Arabis

Species

See text

Arabis /ˈɛərəbɪs/,[1] or rockcress, is a genus of flowering plants, within the family Brassicaceae, subfamily Brassicoideae.

Description

The species are herbaceous, annual or perennial plants, growing to 10–80 cm tall, usually densely hairy, with simple entire to lobed leaves 1–6 cm long, and small white four-petaled flowers. The fruit is a long, slender capsule containing 10-20 or more seeds. Natural habitat for Arabis species is rocky mountain/cliff sides or dry sites[2] Cultivation of Arabis is best suited for rock gardens or container gardens[1]. This genus is pollinated by members of Apieae and Lepidoptera[2].

Siliques of Arabis turrita
Siliques of Arabis turrita

Taxonomy

Though traditionally recognized as a large genus with many Old World and New World members, more recent evaluations of the relationships among these species using genetic data suggest there are two major groups within the old genus Arabis. These two groups are not each other's closest relatives, so have been split into two separate genera. Most of the Old World members remain in the genus Arabis, whereas most of the New World members have been moved into the genus Boechera, with only a few remaining in Arabis.[3][4]

Species

Selected species

Cultivation

Some species, notably A. alpina, are cultivated as ornamental plants in gardens. Many others are regarded as weeds.

See also

References

  1. ^ a b Sunset Western Garden Book, 1995:606–607
  2. ^ a b "Arabis caucasica Rock Cress, Wall Rockcress PFAF Plant Database". pfaf.org. Retrieved 2019-03-17.
  3. ^ Al-Shehbaz, Ihsan. Transfer of most North American species of Arabis to Boechera (Brassicaceae). Novon 13: 381-391 (2003)
  4. ^ Al-Shehbaz, Ihsan. Nomenclatural Notes on Eurasian Arabis (Brassicaceae). Novon 15: 519-524 (2005)

External links

This page was last edited on 17 August 2019, at 09:05
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