Koanophyllon palmeri

Koanophyllon palmeri, called Palmer’s umbrella thoroughwort, is a North American plant species in the sunflower family. It is native to Arizona, southwestern New Mexico, and western Mexico from Sonora as far south as Michoacán.[2][3][4]

Koanophyllon palmeri
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Eupatorieae
Genus:
Koanophyllon
Species:
K. palmeri
Binomial name
Koanophyllon palmeri
(A.Gray) R.M.King & H.Rob. 1971
Synonyms[1]
  • Eupatorium palmeri A. Gray 1886
  • Eupatorium arborescens M.E.Jones

Koanophyllon palmeri is an herb or subshrub up to 100 cm (39 inches) in height. Leaves are lanceolate with rounded bases and narrow pointed tips. Flowers are usually white, but sometimes tinged with purple or yellow.[5][6][7]

References
  1. The Plant List, Koanophyllon palmeri (A.Gray) R.M.King & H.Rob.
  2. Biota of North America Program 2014 county distribution map
  3. Turner, B. L. 1997. The Comps of Mexico: A systematic account of the family Asteraceae, vol. 1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272.
  4. SEINet, Southwestern Biodiversity, Arizona chapter description, photos, distribution map
  5. Flora of North America, Koanophyllon palmeri (A. Gray) R. M. King & H. Robinson, 1971. Shrubby umbrella thoroughwort
  6. King, Robert Merrill, & Robinson, Harold Ernest. Phytologia 22(3): 151. 1971.
  7. Asa Gray. Smithsonian Contributions to Knowledge 3(5): 87–88. 1852.
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