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Five Finger Fern
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Adiantum aleuticum
  

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About Five Finger Fern (Adiantum aleuticum) Adiantum aleuticum (western maidenhair fern) is a species of fern in the genus Adiantum, native mainly to western North America from the Aleutian Islands of Alaska, south to Chihuahua, and also locally in northeastern North America from Newfoundland south to Maryland. The fronds grow to 15-110 centimeter high, and are fan-shaped, light to medium green with dark brown to black stems. It prefers fertile, moist soil in rock crevices near streams, from sea level in the north of its range, up to 3,200 meter altitude in the south of its range. It tolerates serpentinite rock well, and is confined to this mineral-rich rock in some areas.
Plant Description
Plant Type
Fern

Max. Height
2.5 ft (0.8 m)

Native Status
Native

Natural Setting
Site Type
Stream Edges,

Sun
Shade, Part Shade

Elevation ?
9' - 14090'

Annual Precip. ?
8.5" - 133.7"

Summer Precip. ?
0.15" - 3.99"

Coldest Month ?
10.8° F - 53.9° F

Hottest Month ?
34.1° F - 79.3° F

Humidity ?
0.01 vpd - 26.19 vpd

Sunset Zones ?
1, 2, 3, 4*, 5*, 6*, 7*, 14, 15*, 16*, 17*, 18, 19, 20, 21, 22, 23, 24

Landscaping Information
Water Requirement ?
Low, Moderate - High
Extremely Low
Very Low
Low
Moderate - High


Common uses
Deer Resistant

Nursery Availability
Sometimes Available

Other Names
Common Names
Western Five Finger, Five Fingered Fern


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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