Page author: David Giblin
Antennaria dimorpha
cushion pussytoes, low pussytoes
Staminate (male) flowers arise from the tips of silky-leaved stems. Each head of flowers is formed by a cluster of blackish-green bracts (involucre).
WTU specimens
Other herbaria
WTU images

Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and Nebraska.

Habitat: Dry, open places in sagebrush desert to ponderosa pine forest openings, often on lithosol.

Flowers: April-May

Origin: Native

Conservation Status: Not of concern

Description:
General:

Plants form small, compact mats from a multi-branched woody base (caudex). Plants are not stoloniferous (horizontal stems along ground surface).

Leaves:

Compactly arranged; narrow to linear and sometimes broadest in the upper half; with dense, silky hairs.

Flowers:

Plants have either all female (pistillate) or all male (staminate) flowers (= dioecious). A single head containing several flowers terminates the leafy stems. Staminate heads 5-7 mm. high and appear blackish-green; pistillate heads 10-15 mm high and appear brown to reddish-brown.

Fruits:

Achene.

Accepted Name:
Antennaria dimorpha (Nutt.) Torr. & A. Gray
Publication: Fl. N. Amer. 2: 431. 1843.

Synonyms & Misapplications:
Antennaria dimorpha (Nutt.) Torr. & A. Gray var. integra L.F. Hend.
Antennaria dimorpha (Nutt.) Torr. & A. Gray var. latisquama (Piper) M. Peck
Antennaria dimorpha (Nutt.) Torr. & A. Gray var. macrocephala D.C. Eaton
Antennaria dimorpha (Nutt.) Torr. & A. Gray var. nuttallii D.C. Eaton
Antennaria latisquama Piper
Antennaria macrocephala (D.C. Eaton) Rydb.
Gnaphalium dimorphum Nutt.
Additional Resources:

PNW Herbaria: Specimen records of Antennaria dimorpha in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Antennaria dimorpha checklist entry.

E-Flora BC: Antennaria dimorpha atlas page.

CalPhotos: Antennaria dimorpha photos.

USDA Plants: Antennaria dimorpha information.

38 photographs:
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