(5) Oregon Woodsia. Woódsia Oregàna
Fronds two to ten inches high, smooth, bright green, glandular beneath, narrowly lance-oblong, bipinnatifid. Pinnse triangular-oblong, obtuse, pinnatifid. Segments ovate or oblong, obtuse, crenate, the teeth or margin nearly always reflexed. Indusium minute, concealed beneath the sorus, divided into a few beaded hairs.
Like the obtuse Woodsia this fern has no joint near the base of the stipe, but is much smaller and has several points of difference. Limestone cliffs, Gaspé Peninsula, southern shore of Lake Superior, Colorado, Oregon to the northwest. Its eastern limit is northern Michigan.