A. howellii subsp. canadensis
Antennaria howellii (everlasting or Howell's pussytoes) is a North American species in the genus Antennaria within the sunflower family. It is native to northern Alaska, much of Canada including the Arctic territories, and the northern United States as far south as northern California, Colorado and North Carolina.
Antennaria howellii is an evergreen perennial plant. The form is usually basal rosettes, largely clonally propagated. The basal rosette leaves are 2–4 cm long and 6–12 mm broad, light green and spatulate, with a thin arm and a broad tip with a point. They have woolly white undersides. The flowerheads appear in May, on a stem 15–35 cm tall with smaller, slender leaves 1–4 cm long. It is commonly seen growing under pine stands.
- Antennaria howellii subsp. howellii - western + north-central USA, western + central Canada including Yukon
- Antennaria howellii subsp. canadensis - northeastern USA, eastern + central Canada including Labrador
- Antennaria howellii subsp. neodioica - Canada, northern USA
- Antennaria howellii subsp. petaloidea - Canada, northern USA
- 1913 illustration from Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 3: 450.
- The Plant List search for Antennaria howellii
- Flora of North America Vol. 19, 20 and 21 Page 403 Howell’s pussytoes, antennaire de Howell, Antennaria howellii Greene
- Calflora taxon report, University of California, Antennaria howellii Greene Howell's pussytoes
- Biota of North America Program 2014 state-level distribution map
- Greene, Edward Lee 1897. Pittonia 3(16C): 174 description and commentary in English
- Germplasm Resources Information Network: Antennaria howellii
- United States Department of Agriculture Plants Profile: Antennaria howellii
- Plants of British Columbia: Antennaria howellii
- Jepson Flora Project: Antennaria howellii
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