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|Family: Thelypteridaceae||View Description||Dichotomous Key|
|Genus: Thelypteris||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Thelypteris nevadensis (Baker) C.V. Morton
Habit: Rhizome creeping, 1.5--3 mm wide; generally dormant in winter. Leaf: densely clustered, generally 40--100 cm, 8--15 cm wide; stipe scales ovate, tan, persistent; blade thin, abaxially with many short-stalked or sessile, resinous glands between and on veins, nonglandular hairs sparse on axes, veins, 0 between veins; pinnae deeply lobed, lobes +- oblong, entire to shallowly crenate. Sporangia: sori small, round; indusia hairs 0 or sparse.
Ecology: Springy hillsides, seepage areas; Elevation: 365--1700 m. Bioregional Distribution: KR, NCoRO, n SNH; Distribution Outside California: to British Columbia, Idaho. Note: Locally forming large colonies. Differs from Athyrium filix-femina in having longer, thinner rhizome, thinner leaves, more numerous reduced proximal pinnae, more entire lobes, rounder sori.
Synonyms: Lastrea oregana (C. Chr.) Copel.; Parathelypteris nevadensis (Baker) Holttum
eFlora Treatment Author: John C. Game, Alan R. Smith & Thomas Lemieux
Jepson Online Interchange
Previous taxon: Thelypteris
Next taxon: Thelypteris puberula var. sonorensis
Citation for this treatment: John C. Game, Alan R. Smith & Thomas Lemieux 2016. Thelypteris nevadensis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=46421, accessed on October 24, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on October 24, 2016.