Single Record
Participant Info
- Species
- Cystopteris reevesiana [Cystopteris fragilis subsp. tenuifolia]
- Family
- Cystopteridaceae
- CommonName
- Southwestern brittle fern
- Presence
- yes
- Status
- native
- EarliestDate
- 1939
- LatestDate
- 2010
- Ecosystem
- montane, subalpine, tundra
- Geobotanical
- SSawatch, Garitas, SSanjuans, Culebras, NCristos
- Counties
- Alamosa, Conejos, Costilla, Hinsdale, Mineral, Rio Grande, Saguache
- Passes
- WildlifePreserves
- Other Localities
- PhotoRecords
- Comments
- NEED IN SITU PHOTOS. In the Watershed, Southwestern brittle fern has been vouchered, occasionally, from all mountain regions, east and west. Unlike Cystopteris fragilis, C. reevesiana often grows ("sprawling") on forested and open slopes. Allred et al. (2020) find it common in the northern counties of New Mexico and suggest that since the species was separated out of C. fragilis late (1981), a number of older vouchers determined as "Cystopteris fragilis" may be C. reevesiana—and the same would apply to the Watershed record. The distribution of the New World species C. reevesiana is fairly restricted, to Arizona, Colorado, and New Mexico, with some occurrences in the Rio Grande drainage of southwestern Texas.
- Annotation