Erigeron inornatus

Erigeron inornatus is a North American species of flowering plant in the daisy family known by the common name California rayless daisy,[3] California rayless fleabane,[3] rayless fleabane,[3] Lava rayless fleabane[4]

Erigeron inornatus
herbarium specimen, var. calidipetris
Lassen County, California
Jepson Herbarium, Berkeley
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Astereae
Genus:
Erigeron
Species:
E. inornatus
Binomial name
Erigeron inornatus
Synonyms[1][2]
  • Erigeron foliosus var. inornatus A.Gray
  • Erigeron foliosum var. inornatum A.Gray

Erigeron inornatus is native to the western United States, primarily in the mountains of Oregon and California but with additional populations in Washington, Idaho, and Nevada.[3][5]

Erigeron inornatus is a perennial herb variable in appearance, up to 90 cm (3 feet) tall, with hairy or hairless foliage. The leaves extend all the way up the stem and are narrow and several centimeters long. Atop each branch of the stem is an inflorescence of 1-15 flower heads, each about a centimeter (0.4 inches) wide and flat-topped. Each head contains numerous golden yellow to wispy white disc florets but no ray florets.[4]

Varieties[3][4]

References
  1. Tropicos, Erigeron inornatus (A. Gray) A. Gray
  2. Tropicos, Erigeron foliosus var. inornatus A. Gray
  3. Calflora taxon report, University of California, Erigeron inornatus A. Gray California rayless daisy, California rayless fleabane, rayless fleabane
  4. Flora of North America, Erigeron inornatus (A. Gray) A. Gray, 1880. Lava rayless fleabane
  5. Biota of North America Program 2014 county distribution map


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