Participant Info

Species

Ranunculus pensylvanicus

Family

Ranunculaceae

CommonName

Pennsylvania buttercup

Presence

YES

Status

native

EarliestDate

1896

LatestDate

2021

Ecosystem

basin, shrubland, foothill, montane

Geobotanical

SSanjuans, UBasin, LBasin

Counties

Alamosa, Conejos, Mineral, Rio Grande, Saguache

Passes

WildlifePreserves

Baca NWR

Other Localities

PhotoRecords

YES Rich Haswell: Rio Grande Co, Middle San Francisco Creek trailhead, 10 miles S of Del Norte, by stream 20 Aug 2021; Mary E. McDonald, Conejos Co, beaver dam on Conejos River 7 Sept 2021

Comments

In the Watershed there were six records of Ranunculus pensylvanicus from 1986 to 1936. Most are from the Basin along the Rio Grande. Then after a gap of 60 years, there were nine records, from 1997 to 2021, mostly from the south San Juans at higher elevation (e.g. Deep Creek south of Creede). The USA distribution lies mainly across the northern third of the nation, with scattered locations down the Central and Southern Rockies and an isolated population in eastern Arizona and western New Mexico. Socorro Co marks the farthest south of this buttercup's spread down the Rio Grande drainage.

Annotation