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| Pellaea glabella ssp. occidentalis (E.Nels.) Windham | Species Image Gallery (opens in a new window) |
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| TAXONOMY | |||||||||
| Family: | Pteridaceae | ||||||||
| Genus: | Pellaea | ||||||||
| Species Synonyms: | Pellaea glabella var. nana (L.C.
Rich.) Cody Pellaea glabella var. occidentalis (E. Nels.) Butters Pellaea occidentalis (E. Nels) Rydb. |
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| Common Names: | smooth cliffbrake | ||||||||
| DISTRIBUTION | |||||||||
| Canada: | southwest Mackenzie District – northern Saskatchewan - southern Manitoba | ||||||||
| Saskatchewan: | northern to southeastern Saskatchewan; Cluff Lake, Deschambault Lake – Amisk Lake, Beaver River – Big Muddy Lake, Roche Percee | ||||||||
| Ecoregion: | Mixed Grassland, Moist Mixed Grassland, Churchill River Upland, Athabasca Plain | ||||||||
| HABITAT | |||||||||
| Saskatchewan: | limestone cliffs and outcrops | ||||||||
| Associated species: | smooth woodsia | ||||||||
| RARITY STATUS | |||||||||
| Provincial
Status According to Harms (2003): |
Threatened |
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| Nature Conservancy Status: | G5T4 S2 |
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| Saskatchewan
Species at Risk Status: |
None |
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| COSEWIC Status: | None |
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| Smooth cliffbrake is threatened because it is rare or uncommon in Saskatchewan. This species occurs in a wide range in Saskatchewan but in a small number of localities. Some local populations are small and some larger. No immediate threats known but may occur in the future. | |||||||||
| SPECIES DESCRIPTION | |||||||||
| Height: | 2 – 15 cm | ||||||||
| Roots: | rhizomes compact, ascending; scales linear to narrowly triangular, reddish-brown, all the same colour, margin wavy, entire to minutely square-toothed | ||||||||
| Fronds: | fertile and sterile leaves similar in appearance, tufted; crosiers sparsely long-hairy; stalk 1 – 10 cm long, slender, brown, shiny, may have prominent separation lines near the base; blade linear to oval, 1 – 2-pinnate, 1 – 10 cm long, bluish; central axis brown throughout, nearly hairless | ||||||||
| Pinnae: | ascending or spreading, bases extending to form a winged central axis, lower pinnae simple to pinnate with 3 – 7 lobes, sessile or short-stalked, upper pinnae simple; ultimate segments 5 – 20 mm long, lance-shaped, leathery to herbaceous, hairless, margins recurved on fertile segments, borders whitish | ||||||||
| Sori: | marginal, covered rolled over leaf margins | ||||||||
| Sporangium: | long-stalked, containing 64 spores | ||||||||
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