Washington Flora Checklist
A Checklist of the Vascular Plants of Washington State
Hosted by the University of Washington Herbarium

 

Checklist » Brassicaceae » Smelowskia americana

Smelowskia americana Rydb. [FNA7]
Brassicaceae
alpine or Siberian smelowskia

Origin: Native

Voucher: WTU (view specimen records)

Notes: FNA7: " Both R. C. Rollins (1993) and N. H. Holmgren (2005b) listed 2n = 44 for Smelowskia americana (as S. calycina var. americana), but no such number is known for any species of the genus (S. I. Warwick and I. A. Al-Shehbaz 2006). It is most likely that the first two authors erred in reporting 2n = 22 for the species. The latter count is likely to represent a dysploid reduction of tetraploid populations based on x = 6.

Previous North American authors (e.g., W. H. Drury Jr. and R. C. Rollins 1952; Rollins 1993; N. H. Holmgren 2005b) believed that the central Asian Smelowskia calycina and the North American plants also attributed to it are conspecific. S. I. Warwick et al. (2004b) clearly demonstrated that they are different species. The North American plants, S. americana, are easily distinguished from S. calycina by having readily caducous instead of persistent calyces. As recognized by Rollins (1993), the North American S. calycina represented three distinct taxa (S. americana, S. media, S. porsildii) none of which belongs to that species."

Literature:
(none)

Photo © 2003 Rod Gilbert
(from WTU Image Collection)

Taxon treatment authored by David Giblin; last updated 7/18/2013 by David Giblin
Synonyms
Smelowskia calycina (Stephen) C.A. Mey.   [Peck]
Smelowskia calycina (Stephen) C.A. Mey. var. americana (Regel & Herder) W.H. Drury & Rollins




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