Talk:Dryopteris expansa

Reference suggestion
Handbook of Northwestern Plants by Helen M Gilkey and La Rea J Dennis, Revised edition, mentioned this fern.

Spreading wood fern. Rhizomes stout, covered by light brown scales; stipes usually about as long as the blades; leaves 2.5-11 dm. tall, blades 3-pinnate, broadly triangular to ovate or oblong in outline, pinnae short-stalked, asymmetrical; sori small; indusia sub-persistent, glabrous, sometimes glandular. [Dryopteris dilatata (Hoffm.) Gray misapplied] Moist woods, usually in rocky areas, and along stream banks." Permalearning (talk) 02:55, 1 June 2023 (UTC)