The Jepson Manual: Vascular Plants of California, Second Edition
... Ruth E.B. Kirkpatrick, Alan R. Smith & Thomas Lemieux, except as noted
Perennial herb, in soil or on or among rocks; rhizome creeping to erect, scaly. Leaf: generally all ± alike (or of 2 kinds, fertile, sterile),
generally < 50 cm, often < 25 cm; stipe generally thin, wiry, often dark, ×-section wi ...