Trollius laxus

Trollius laxus is a rare[1] flowering plant species in the buttercup family, Ranunculaceae. It is native to North America and is considered to have two subspecies, one with a distribution is the east and one in the west. Common names for Trollius laxus include American globeflower[2] and American spreading globeflower.

Trollius laxus
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Ranunculaceae
Genus: Trollius
Species:
T. laxus
Binomial name
Trollius laxus
Salisb. 1807

Subspecies

The two subspecies of Trollius laxus are:

  • T. laxus ssp. albiflorus (A. Gray) A. Löve & D. Löve & Kapoor 1971 [3]
  • T. laxus ssp. laxus [4]

Subspecies albiflorus has a distribution over southwestern Canada and northwestern United States, while ssp. laxus has a range in the northeastern U.S., limited to parts of Connecticut, New Jersey, New York, Ohio and Pennsylvania.

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References
  1. Niering, William A.; Olmstead, Nancy C. (1985) [1979]. The Audubon Society Field Guide to North American Wildflowers, Eastern Region. Knopf. p. 743. ISBN 0-394-50432-1.
  2. "Trollius laxus". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 12 December 2015.
  3. "ssp. albiflorus". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 20 Dec 2011.
  4. "ssp. laxus". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 20 Dec 2011.
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