Mount Tamalpais, base of. Steep Ravine Trail at Webb Creek, approx. 450m NE from Shoreline Hwy.
Longitude (DD)
-122.6225
Latitude (DD)
37.8896
Elevation (m)
145
Habitat
Open areas in forested slope above creek, with Polystichum munitum, etc.
Description
Fairly common.
Collection notes
Dryopteris expansa was locally common along this trail, too. We collected this plant because it struck us as being somewhat intermediate with D.expansa--the blade seemed relatively thin in texture, and more divided than usual?