Antennaria dimorpha
{{Short description|Species of flowering plant}}
{{Speciesbox
|image = Antennaria dimorpha 1.jpg
|image_caption = Antennaria dimorpha near Monitor, Chelan County Washington
|status = {{TNCStatus}}
|status_system = TNC
|genus = Antennaria
|species = dimorpha
|authority = (Nutt.) Torr. & A.Gray
|synonyms = {{Specieslist
|Antennaria dimorpha var. integra | L.F.Hend.
|Antennaria dimorpha var. macrocephala | D.C.Eaton
|Antennaria dimorpha var. nuttallii | D.C.Eaton
|Antennaria latisquama | Piper
|Antennaria macrocephala | Rydb.
|Gnaphalium dimorphum | Nutt.
}}
}}
Antennaria dimorpha is a North American species of flowering plants in the family Asteraceae known by the common names low pussytoes or gray cushion pussytoes.[http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=377 Calflora taxon report, University of California, Antennaria dimorpha (Nutt.) Torrey & A. Gray Gray Cushion Pussytoes, low pussytoes ] It is native to western Canada (British Columbia, Alberta, Saskatchewan) and the western United States as far south as Riverside County in California and Rio Arriba County in New Mexico. It is generally found in dry areas. There are historical records of the species formerly occurring in northwestern Nebraska, but these populations appear now to be gone.[http://bonap.net/MapGallery/County/Antennaria%20dimorpha.png Biota of North America Program 2014 county distribution map]
Description
Antennaria dimorpha is a small mat-forming perennial herb growing in a flat patch from a thick, branching caudex. The spoon-shaped leaves are up to about a centimeter long and green but coated with long, gray hairs. The erect inflorescences are only a few centimeters tall and flowers often appear nestled among the foliage. Each stem holds a single flower head lined with dark brown and green patched phyllaries. It is dioecious, with male plants bearing heads of staminate flowers and female plants bearing heads of larger pistillate flowers. The fruit is an achene with a long, soft, barbed pappus. Older plants sometimes develop a dead spot in the center, with new growth forming a ring on the outside.
Habitat
Antennaria dimorpha grows in dry, open places in scablands, sagebrush desert, and ponderosa pine forest openings, often on very rocky soils. Burke Herbarium Image Collection| http://biology.burke.washington.edu/herbarium/imagecollection/taxon.php?Taxon=Antennaria dimorpha
Gallery
Image: Antennaria dimorpha iNat-154120303.jpg|Flower
References
{{Reflist}}
External links
- {{Commons-inline|italic=1}}
- [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,671,674 Jepson Manual Treatment]
- [http://plants.usda.gov/java/profile?symbol=ANDI2 United States Department of Agriculture Plants Profile]
- [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Antennaria+dimorpha CalPhotos Photos gallery, University of California]
{{Taxonbar|from=Q4771270}}
Category:Plants described in 1841
Category:Flora of Western Canada
Category:Flora of the Northwestern United States
Category:Flora of the Southwestern United States
Category:Flora of the South-Central United States
Category:Flora of the North-Central United States
{{Gnaphalieae-stub}}