Antennaria dimorpha
cushion pussytoes, low pussytoes
A. dimorpha forms short mats from the many stems that arise from the base of each plant. The dense, silky hairs of the leaves are seen here. Note the individual flower heads at the tip of the stems. The flowers in this photo are female (pistillate).
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

Distribution: British Columbia to southern California, east to Montana, Nebraska and Colorado; east of the Cascades in central and eastern Washington.

Habitat: Dry, open places in lowlands to foothills.

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. 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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