Boechera

Boechera stricta

Boechera is a plant genus of the family of cruciferous plants ( Brassicaceae). The genus was named in honor of the Danish botanist Tyge Wittrock Böcher ( 1909-1983 ).

Features

Most species of the genus are perennial, herbaceous plants. Are the leaves hairy, they have branched trichomes.

In elongated, racemose inflorescences many small flowers are borne. The four petals ranging in color from white to lavender to purple.

The genus was originally due to the combination of features " parallel to the septum flattened pods, branched trichomes and adjacent germ layers " of the genus of geese cress ( Arabis ) assigned, but due to a non- diploid number of chromosome sets of x = 7 spun off as a separate genus. This classification was then supported by further morphological, cytological and molecular biological studies.

Many species within the genus reproduce asexually by apomixis.

Dissemination

Boechera found in North America and Greenland.

Species

According to the latest taxonomy according to Ihsan Al- Shehbaz and Michael Windham, the genus includes 110 species. Here is a selection:

  • Boechera arcuata ( Nutt. ) Windham and Al - Shehbaz; Home: California
  • Boechera atrorubens ( Suksd. ex Greene) Windham and Al - Shehbaz; Home: Oregon, Washington
  • Boechera canadensis (L.) Al- Shehbaz; Home: Canada, USA
  • Boechera divaricarpa (A. Nelson) Á. Löve & D. Löve; Home: North America
  • Boechera fecunda ( Rollins ) Dorn; Home: United States (Montana)
  • Boechera fendleri ( S. Watson ) A. W. Weber; Home: North America
  • Boechera hoffmannii ( Munz ) Al- Shehbaz; Home: California
  • Boechera holboellii ( Hornem. ) Á. Löve & D. Löve; Home: North America
  • Boechera koehleri ​​( Howell ) Al- Shehbaz; Home: Oregon, California
  • Boechera missouriensis (Greene) Al- Shehbaz; Home: USA
  • Boechera pauciflora ( Nutt. ) Windham and Al - Shehbaz; Home: Canada, USA
  • Boechera perennans ( S. Watson ) A. W. Weber; Home: USA, Mexico ( Baja Norte)
  • Boechera perstellata (E. L. Brown ) Al- Shehbaz; Home: Kentucky, Tennessee
  • Boechera platysperma ( A. Gray ) Al- Shehbaz; Home: Oregon, California, Nevada
  • Boechera puberula ( Nutt. ) Dorn; Home: USA
  • Boechera pusilla ( Rollins ) Dorn; Home: United States (Wyoming)
  • Boechera rigidissima ( Rollins ) Al- Shehbaz; Home: California, Nevada
  • Boechera shortii ( Fernald ) Al- Shehbaz; Home: Canada, USA
  • Boechera sparsiflora ( Nutt. ) Dorn; Home: Canada, USA
  • Boechera stricta ( Graham) Al- Shehbaz; Home: Canada, United States.

Swell

  • Al- Shehbaz, I.: Transfer of most North American species of Arabis to Boechera ( Brassicaceae). In: Novon. No. 13, 2003, pp. 381-391.
  • Germplasm Resources Information Network ( GRIN), accessed on 20 November 2013.

Pictures of Boechera

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