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

Checklist » Asteraceae » Antennaria microphylla

Antennaria microphylla Rydb. [FNA19]
Asteraceae
small-leaf pussytoes

Origin: Native

Voucher:WTU (view specimen records)

Notes: FNA19: "Antennaria microphylla is a primary sexual progenitor of the A. rosea polyploid agamic complex (R. J. Bayer 1990b). A. Cronquist (1955) included A. rosea within his circumscription of A. microphylla. It is preferable to recognize sexual diploids as distinct from their morphologically discrete hybrid apomictic derivatives. Antennaria microphylla is always dioecious and has stems distally stipitate-glandular and white phyllaries; A. rosea is always gynoecious and has stems without glandular hairs and phyllaries only occasionally white.

Some authors (A. E. Porsild 1950; E. H. Moss 1959; Porsild and W. J. Cody 1980) have recognized A. nitida as distinct; comparisons of the nomenclatural types of the two show that they are conspecific. Antennaria microphylla has allelopathic properties (G. D. Manners and D. S. Galitz 1985)."



Literature:
» Bayer, R.J. and G.L. Stebbins. 1987. Chromosome numbers, patterns of distribution, and apomixis in Antennaria (Asteraceae: Inuleae). Sytematic Botany 12: 305-319.

Photo © Clayton J. Antieau
(from WTU Image Collection)

Taxon treatment authored by Peter F. Zika; last updated 2/23/2010 by David Giblin
Synonyms
Antennaria bracteosa Rydb.
Antennaria microphylla Lunell var. solstitialis Lunell
Antennaria nitida Greene
Antennaria rosea Greene var. nitida (Greene) Breitung
Antennaria solstitialis (Greene) Breitung




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