Erigeron radicatus

Erigeron radicatus is a North American species of flowering plant in the daisy family known by the common names Hooker's fleabane[2] and taproot fleabane[3] The species grows in central Canada (Alberta, Saskatchewan) and parts of the north-central United States, primarily the northern Rocky Mountains and the Black Hills. It has been found in Idaho, Montana, Utah, Wyoming, Colorado, Nebraska, and South Dakota, with a few isolated populations reported from North Dakota.[4]

Erigeron radicatus
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Astereae
Genus:
Erigeron
Species:
E. radicatus
Binomial name
Erigeron radicatus
Synonyms[1]
  • Erigeron huberi S.L.Welsh & N.D.Atwood
  • Erigeron inamoenus A.Nelson
  • Erigeron macounii Greene

Erigeron radicatus is a small perennial herb up to 12 centimeters (4.8 inches) tall, producing a woody branching caudex. The plant generally produces only 1 flower head per stem. Each head has 12–85 purple or white ray florets surrounding numerous yellow disc florets. The species grows on rocky slopes, ledges, ridges, and cliff faces at high elevations.[2][5][6]

References
  1. The Plant List, Erigeron radicatus Hook
  2. Flora of North America, Erigeron radicatus Hooker, 1834. Hooker’s fleabane
  3. "Erigeron radicatus". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 29 June 2015.
  4. Biota of North America Program 2014 county distribution map
  5. Hooker, William Jackson 1834. Flora Boreali-Americana 2(7): page 17 diagnosis in Latin, habitat info and figure captions in English
  6. Hooker, William Jackson 1834. Flora Boreali-Americana 2(7): plate CXXII (122) full-page line drawing of Erigeron radicatus


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