Single Record

Participant Info

Species
Ericameria nauseosa [Chrysothamnus nauseosus]
Family
Asteraceae
CommonName
rubber rabbitbrush
Presence
YES
Status
native
EarliestDate
1896
LatestDate
2023
Ecosystem
basin, shrubland, foothill, montane, ruderal, urban
Geobotanical
SSawatch, Garitas, SSanjuans, Culebras, NCristos, UBasin, LBasin
Counties
Alamosa, Conejos, Costilla, Hinsdale, Mineral, Rio Grande, Saguache, Archuleta
Passes
La Veta
WildlifePreserves
Alamosa, Baca, Brown Lakes, Great Sand Dunes, La Jara
Other Localities
Alamosa (town), La Botica, Del Norte
Comments
In the Watershed rubber rabbitbrush is a staple component of scrubland and foothill ecosystems on both sides of the Valley. Ericameria nauseosa is a very complex species, with many named varieties. Four have been reported from the Watershed, from most common to least: var. oreophila, var. graveolens, var. nauseosa, and var. ammophila. E. nauseosa var. graveolens (distinguished by its broader leaves and longer style appendage in relation to its stigma branches) and E. nauseosa var. oreophila (distinguished by its narrower leaves and shorter style appendage in relation to its stigma branches) hybridize where the two varieties are sympatric, a condition that seems to apply to the foothills all around the Watershed. In the USA, Ericameria nauseosa is found in nearly every county west of the Great Plains, and follows the Rio Grande drainage through New Mexico into far west Texas.