Participant Info

Species

Erigeron pinnatisectus [Erigeron compositus var. pinnatisectus]

Family

Asteraceae

CommonName

pinnate-leaf fleabane

Presence

YES

Status

native

EarliestDate

1911

LatestDate

2019

Ecosystem

subalpine, tundra

Geobotanical

SSawatch, Garitas, SSanjuans, Culebras, NCristos

Counties

Alamosa, Conejos, Costilla, Hinsdale, Mineral, Rio Grande, Saguache, San Juan

Passes

Elwood, Grayback, Hayden, Stony, Wolf Creek

WildlifePreserves

Great Sand Dunes

Other Localities

PhotoRecords

YES Rich Haswell: Grayback Pass, on rocky knoll near the Summitville Road and the radio-tower utility road 8 July 2019

Comments

There are collections of Erigeron pinnatisectus from all Watershed mountain regions, east and west, north and south. The plant seems to prefer open, rocky subalpine and tundra meadows. This is a species with a restricted USA range: high elevations in Colorado, southern Wyoming, and northern New Mexico, where the Rio Grande drainage hosts this fleabane only as far as the counties bordering Colorado: Rio Arriba, Taos, and Colfax.

Annotation