Balsamorhiza macrolepis

Imperiled  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Balsamorhiza
Species:
B. macrolepis
Binomial name
Balsamorhiza macrolepis
W.M.Sharp

Balsamorhiza macrolepis is a species of flowering plant in the tribe Heliantheae of the family Asteraceae, known by the common name California balsamroot. It is found only in California, where it grows in dry, open habitat, mostly in mountainous areas, mostly in the western foothills of the Sierra Nevada and in the eastern Coast Ranges near San Francisco Bay. It is now becoming rare in the Coast Ranges.[2][3][4]

Description

Balsamorhiza macrolepis is a taprooted perennial herb growing erect 20 to 60 centimeters tall. The large lobed leaves are lance-shaped to oval and the largest, generally toward the base of the plant, may approach 50 centimeters (20 inches) in length. They are bright to dull grayish-green and coated in fine hairs.[2]

The inflorescence bears a single flower head lined with hairy, glandular phyllaries up to 4 centimeters long. The head has a center of yellowish disc florets and a fringe of pointed yellow ray florets each 2 or 3 centimeters long.[5]

References

  1. ↑ "NatureServe Explorer 2.0".
  2. 1 2 Weber, William A. (2006). "Balsamorhiza macrolepis". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  3. ↑ "Balsamorhiza macrolepis". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
  4. ↑ "Balsamorhiza macrolepis". Calflora. Berkeley, California: The Calflora Database.
  5. ↑ Sharp, Ward McClintic 1935. Annals of the Missouri Botanical Garden 22(1): 132–133


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