Single Record

Participant Info

Species
Erigeron grandiflorus [Erigeron simplex] [Erigeron leucotrichus] [Erigeron uniflorus]
Family
Asteraceae
CommonName
Rocky Mountain alpine daisy
Presence
YES
Status
native
EarliestDate
1922
LatestDate
2019
Ecosystem
subalpine, tundra
Geobotanical
SSawatch, Garitas, SSanjuans, Culebras, NCristos
Counties
Alamosa, Conejos, Costilla, Hinsdale, Mineral, Rio Grande, Saguache, Archuleta, San Juan
Passes
Bonito, Elwood, Grayback, Music, Stony, Wolf Creek, Venable
WildlifePreserves
Other Localities
Comments
Whether as Erigeron grandiflorus or E. simplex, alpine fleabane may be the most widely collected higher-elevation species Erigeron in the Watershed, found in the subalpine and tundra of all mountain ranges. It is present in the Rocky Mountains from the Canadian border to Santa Fe Co, New Mexico, as well as scattered locations in Utah, Nevada, and Arizona. Note that sometimes diploid populations have been treated as E. simplex and triploid populations as E. grandiflorus, but recent authorities (FNA, BONAP, Ackerfield) treat them both as E. grandiflorus, finding little consistent morphological or geographical evidence to separate the two ploidal races. Note also that this species is quite variable. It ranges in height from three to nine inches, and its basal leaves range from hairy to glabrous.