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Cryptogramma acrostichoides
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Parsley Fern
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Cryptogramma acrostichoides

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About Parsley Fern (Cryptogramma acrostichoides) Cryptogramma acrostichoides is a species of fern known by the common names American parsley fern and American rockbrake. It is native to most of western North America, where it grows in the cracks of rocks in many types of mountainous habitat. It 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.
Plant Description
Plant Type

Native Status

Natural Setting
Site Type
Rocky slopes and crevices

Part Shade

Elevation ?
376' - 12863'

Annual Precip. ?
11.1" - 158.4"

Summer Precip. ?
0.25" - 5.80"

Coldest Month ?
18.6° F - 54.1° F

Hottest Month ?
40.6° F - 79.3° F

Humidity ?
0.70 vpd - 26.19 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
American Parsley Fern, American Rockbrake

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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