''Pellaea brachyptera'' is a species of
fern known by the common name Sierra cliffbrake. It is native to the coastal and inland mountains of northern
California and
Oregon, and a
disjunct population was discovered in
Chelan County, Washington
Chelan County (, ) is a List of counties in Washington, county in the U.S. state of Washington (state), Washington. As of the 2020 United States census, 2020 census, its population was 79,074. The county seat and largest city is Wenatchee, Washi ...
, in 1986.
''Pellaea brachyptera''
Washington State Dept. Natural Resources.
Description
The fern grows in rocky cliffs and slopes of igneous origin.
''Pellaea brachyptera'' grows from a branching reddish-brown rhizome
In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...
several centimeters long. Each gray-green leaf is an elongated, narrow branch up to 40 centimeters long. It is composed of a straight dark brown rachis lined with leaflets which are each divided into pointed, leathery, almost needlelike linear segments. The edges of each segment are rolled under. The sporangia are located under the edges.
References
External links
Jepson Manual Treatment - ''Pellaea brachyptera''USDA Plants Profile; Pellaea brachypteraFlora of North America''Pellaea brachyptera'' - Photo gallery
brachyptera
''Brachyptera'' is a genus of taeniopterygid stoneflies of mostly Western Palearctic distribution.
Species
These 30 species belong to the genus ''Brachyptera'':
* '' Brachyptera algirica'' Aubert, 1956
* '' Brachyptera ankara'' Kazanci, 2000
...
Ferns of California
Flora of the Sierra Nevada (United States)
Flora of Oregon
Flora of Washington (state)
Endemic flora of the United States
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