Talk:Parathelypteris nevadensis

Description and Reference
Handbook of Northwestern Plants by Helen M Gilkey and La Rea J Dennis, Revised edition 2001, mentions this plant on page 22.

"Thelypteris nevadensis (Baker) Clute ex C. V. Morton, Nevada marsh fern. Rhizomes slender, covered with base of old leaves; stipes half the length of the blades or less, straw-colored; leaf blades 2-7 dm. long, lanceolate in outline, the apex long acuminate, pinnate-pinnatifid to 2- pinnate, pinnae sessile; sori small, submarginal; indusia present, but minute, often ciliate and glandular. (=Dryopteris oregana C. Chr.) Stream banks and seepage areas, mostly on western slopes of the Cascades and westward.

(This Handbook covers from "the summit of the Cascade Range to the coastline of Washington and of Oregon as far south as the Umpqua Divide, about the southern limit of Lane County, Oregon. Northern Washington, in its more unique botanical aspects, has been excluded. ") Permalearning (talk) 01:47, 1 June 2023 (UTC)