Polystichum scopulinum
| Polystichum scopulinum | |
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| Species: | P. scopulinum
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| Polystichum scopulinum | |
Polystichum scopulinum is a species of fern known by the common names mountain hollyfern[1] and rock sword fern.[2] It is native to much of western North America, and it is known from disjunct occurrences in eastern Canada, as well.[2] It grows in rocky habitat, often in full sun. It is widespread but mostly found in small populations, and is noted to be most abundant on serpentine soils.[2] This fern produces several erect, narrowly lance-shaped leaves up to 50 centimeters in length. The leaves narrow near the bases. Each leaf is divided into many lance-shaped or oblong leaflets up to 3 centimeters long. The toothed leaflets are sometimes twisted on their axes and overlapping.
References
- ^ USDA, NRCS (n.d.). "Polystichum scopulinum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 12 October 2015.
- ^ a b c Flora of North America
External links
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