Single Record
Participant Info
- Species
- Oryzopsis asperifolia [Urachne asperifolia] [Oryzopsis aspera] etc.
- Family
- Poaceae
- CommonName
- roughleaf ricegrass, winter grass
- Presence
- yes
- Status
- native
- EarliestDate
- 1896
- LatestDate
- 2025
- Ecosystem
- montane
- Geobotanical
- SSanjuans, NCristos
- Counties
- Conejos, Costilla, Mineral, Saguache, Archuleta
- Passes
- La Veta, Wolf Creek
- WildlifePreserves
- Other Localities
- La Botica
- Comments
- In the Watershed, roughleaf ricegrass, perennial and cool-season, has been vouchered somewhat often, but almost always from the South San Juan Mountains. The two other locations are near Creston and La Veta pass in the North Cristos. The typical habitat of Oryzopsis asperifolia is understory of mixed conifer woods in the montane. Identification is made easy by the plant's prostrate nature, with very reduced culm blades, and broad basal leaves twisted upside-down (although note that the blades of other grass may twist upon drying). The USA distribution is central and southern Rockies; Idaho and Wyoming near the Canadian border; and upper mid-West, Great Lakes, and New England along the Canadian border. The species follows the Rio Grande drainage through the top third of New Mexico but no farther.
- Annotation