Cryptogramma acrostichoides

Cryptogramma acrostichoides is a fern species in the Cryptogrammoideae subfamily of the Pteridaceae.[1] It is known by the common names American parsley fern and American rockbrake and is native to most of western North America, where it grows in the cracks of rocks in many types of mountainous habitat.

Cryptogramma acrostichoides
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Family: Pteridaceae
Genus: Cryptogramma
Species:
C. acrostichoides
Binomial name
Cryptogramma acrostichoides

Cryptogramma acrostichoides grows in a tuft from a rhizome. There are two leaf types. The sterile leaf has flat, oval-shaped lobed leaflets resembling parsley, and the fertile leaf is longer with narrow, thick, linear leaflets with their margins curled under to cover the sporangia on the undersides.

References

  1. Maarten J. M. Christenhusz, Xian-Chun Zhang & Harald Schneider (2011). "A linear sequence of extant families and genera of lycophytes and ferns" (PDF). Phytotaxa. 19: 7–54. doi:10.11646/phytotaxa.19.1.2.

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