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| Diphasiastrum sitchense (Rupr.) Holub | Species Image Gallery (opens in a new window) |
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| TAXONOMY | |||||||||
| Family: | Lycopodiaceae | ||||||||
| Genus: | Diphasiastrum | ||||||||
| Species Synonyms: | Lycopodium sitchense Rupr. Diphasium sitchense (Rupr.) A.&D. Love Lycopodium sabinifolium ssp. sitchense (Rupr.) Calder & Taylor Lycopodium sabinifolium var. sitchense (Rupr.) Fern. |
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| Common Names: | Sitka clubmoss round-cedar ground-fir ground-pine |
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| DISTRIBUTION | |||||||||
| Canada: | British Columbia – northern Saskatchewan – Labrador, south to central Saskatchewan – southern Ontario – Nova Scotia – Newfoundland | ||||||||
| Saskatchewan: | northern – central Saskatchewan; Lake Athabasca – Hasbala Lake – Southend | ||||||||
| Ecoregion: | Boreal Transition, Mid-Boreal Upland, Athabasca
Plain, Churchill River Upland, Selwyn Lake Upland, Tazin Lake Upland |
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| HABITAT | |||||||||
| Saskatchewan: | dry, sandy coniferous woods | ||||||||
| Canada: | dry conifer forests | ||||||||
| RARITY STATUS | |||||||||
| Provincial
Status According to Harms (2003): |
Vulnerable | ||||||||
| Nature Conservancy Status: | G5 S2 | ||||||||
| Saskatchewan
Species at Risk Status: |
None | ||||||||
| COSEWIC Status: | None | ||||||||
| Diphasiastrum sitchense is vulnerable because it is rare or uncommon in Saskatchewan. No immediate threats are known but are quite possible in the future. | |||||||||
| SPECIES DESCRIPTION | |||||||||
| Height: | 5.5 – 17.5 cm | ||||||||
| Roots: | adventitious, from the underside of creeping stems | ||||||||
| Stems: | horizontal stems on substrate or shallowly buried, 1 – 2.7 mm wide; upright shoots clustered, branching at base; sterile branchlets not flattened | ||||||||
| Leaves: | on horizontal stems appressed, broadly lanceolate, apex blunt; on upright shoots appressed, broadly lanceolate, apex acuminate; on branchlets monomorphic, 5-ranked, not overlapping, appressed to spreading, free tips longer than the adnate bases, widest at middle, apex sharply pointed | ||||||||
| Strobili: | solitary on upright shoots, gradually narrowing to rounded tip; sporophylls 2 – 4 mm long, ovate to deltate, apex rounded, margins scarious and erose; peduncles absent or < 1 cm | ||||||||
| Spores: | resembling sulphur-yellow powder | ||||||||
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