Flora of North America species comparison

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Woodsia scopulina subsp. scopulina

Woodsia scopulina subsp. appalachiana
Photo is of parent taxon

mountain cliff fern, mountain fern, Rocky Mountain cliff fern, Rocky Mountain woodsia
Photo is of parent taxon
Pinnae

with longest hairs composed of 2–5 cells.

with longest hairs composed of 5–8 cells.
Spores

averaging 42–50 µm. 2n = 76.

averaging 39–46 µm. 2n = 76.
Scales

of stems and petiole bases usually concolored or with a few isolated, dark, occluded cells, scales ovate-lanceolate.

of stems and petiole bases mostly bicolored with broad, usually continuous, dark central stripe, scales narrowly lanceolate.
Indusial

segments narrow, often filamentous distally.

segments broad, not at all filamentous.

Woodsia scopulina subsp. scopulina

Woodsia scopulina subsp. appalachiana
Phenology Sporulating summer–fall. Sporulating summer–fall.
Habitat Cliffs and rocky slopes, found on variety of substrates including both granite and limestone Shaded cracks and ledges on cliffs, mostly subacidic shale and sandstone
Elevation 100–4000 m (300–13100 ft) 300–1700 m (1000–5600 ft)
Distribution
from FNA
AK; CA; CO; ID; MT; NV; OR; UT; WA; WY; AB; BC; SK; YT
from FNA
AR; KY; NC; TN; VA; WV
Discussion

Woodsia scopulina subsp. scopulina is known to hybridize with subsp. laurentiana at localities where the two grow in close proximity. The resultant triploids have malformed spores and appear to be sterile.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 2. FNA vol. 2.
Parent taxa Dryopteridaceae > Woodsia > Woodsia scopulina Dryopteridaceae > Woodsia > Woodsia scopulina
Sibling taxa
W. scopulina subsp. appalachiana, W. scopulina subsp. laurentiana
W. scopulina subsp. laurentiana, W. scopulina subsp. scopulina
Synonyms W. appalachiana, W. scopulina var. appalachiana
Name authority D. C. Eaton (T. M. C. Taylor) Windham: Contr. Univ. Michigan Herb. 19: 58. (1993)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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