Cryptogramma cascadensis E.R.Alverson

국표에는 없다.

Cryptogramma cascadensis is a species of fern known by the common names Cascade parsley fern and Cascade rockbrake.

The plant forms a clump from a rhizome. It has two types of leaves. The sterile leaf is flat with lobed oval or diamond-shaped leaflets, and the fertile leaf is longer, with narrow, thick, fingerlike leaflets with edges curled under to cover the sporangia on the undersides. The leaves are deciduous.

Formerly lumped with Cryptogramma acrostichoides, C. cascadensis was described as a distinct species by Ed Alverson in 1989. The type specimen was collected growing on talus below Chair Peak, 5 km (3 mi) northwest of Snoqualmie Pass.

Cryptogramma cascadensis - Wikipedia

 

 

 

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