Participant Info

Species

Thalictrum venulosum

Family

Thalicraceae

CommonName

meadowrue

Presence

yes

Status

native

EarliestDate

1911

LatestDate

2002

Ecosystem

montane

Geobotanical

Garitas, SSanjuans

Counties

Mineral, San Juan

Passes

Stony

WildlifePreserves

Other Localities

PhotoRecords

Comments

NEED IN SITU PHOTOS. Only a few records of Thalictrum venulosum come from the Watershed: Wagon Wheel Gap (1911); near Hwy 160 W of South Fork (1984); Stony Pass (2003). T. venulosum is spread across the northern third of the USA, with a salient down the Southern Rockies. The Watershed locations would lie at the farthest extent of this southward reach. This is a species that requires inspection of the achene to distinguish it from T. fendleri (see also T. occidentale), so may be under-reported. The species is accepted by BONAP and FNA, but Ackerfield (2022) treats it within the "Thalictrum fendleri complex.” The Watershed locations would be unique to the entire Rio Grande drainage.

Annotation