Participant Info

Species

Asplenium trichomanes [Asplenium saxatile] [Athyrium trichomanes] [Chamaefilix trichomanes]

Family

Aspleniaceae

CommonName

maidenhair spleenwort

Presence

yes

Status

native

EarliestDate

1986

LatestDate

1989

Ecosystem

foothill, montane

Geobotanical

Garitas, SSanjuans

Counties

Rio Grande, Saguache

Passes

WildlifePreserves

Other Localities

PhotoRecords

Comments

NEED IN SITU PHOTOS. Maidenhair spleenwort or Asplenium trichomanes (not to be confused with the popular maidenhair fern or Adiantum pedatum) has been vouchered only twice from the Watershed. Once was a mile north of Rock Creek Park (Rio Grande Co, 1986), "in deep moist vertical cracks of outcrop." The other was in Penitente Canyon southwest of La Garita (Saguache Co, 1989)—a determination accepted by Ackerfield (2022) but apparently not by BONAP. In the USA, A. trichomanes is present in the Cascades of Oregon and Washington, the southern Rockies of Colorado and New Mexico, the Ozarks, and the entire Appalachian range from Alabama to Maine. It follows the Rio Grande drainage through all of New Mexico, and then with several uncommon occurrences in the Big Bend region of Texas.

Annotation