Single Record

Participant Info

Species
Amauriopsis dissecta [Bahia dissecta] [Hymenothrix dissecta] [Bahia chrysanthemoides] [Villanova dissecta] etc.
Family
Asteraceae
CommonName
yellow ragweed, ragleaf bahia
Presence
Yes
Status
native
EarliestDate
1930
LatestDate
2021
Ecosystem
basin, shrubland, foothill, montane, ruderal, urban
Geobotanical
SSawatch, Garitas, SSanjuans, Culebras, UBasin
Counties
Alamosa, Conejos, Costilla, Hinsdale, Mineral, Rio Grande, Saguache
Passes
Cochetopa, La Veta
WildlifePreserves
Baca, Dry Creek, Great Sand Dunes, Hot Creek
Other Localities
Alamosa (town), La Botica, Del Norte
Comments
Amauriopsis dissecta is a very common mid-to-late summer asterid, throughout the Watershed, preferring open dry montane slopes but growing beside Basin roads and streets (e.g., Mosca, Alamosa Co). A colony has been thriving on the side of a gravel driveway in Del Norte for 18 years. The center of the USA distribution is the Four Corners, with presence in Utah, Arizona, Colorado, and New Mexico, as well as parts of southern California, Nevada, Wyoming, and the Black Hills of South Dakota. It follows the Rio Grande drainage through New Mexico on to the Big Bend country of Texas. Note that Baldwin and Wood's 2016 revision of the genus Bahia once again renamed this plant, putting it into the segregate genus Hymenothrix. As yet BONAP and FNA have not accepted this revision, but iNaturalist has.