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| Deschampsia mackenzieana Raup | Species Image Gallery (opens in a new window) |
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| TAXONOMY | |||||||||
| Family: | Poaceae | ||||||||
| Genus: | Deschampsia | ||||||||
| Species Synonyms: | Deschampsia cespitosa (L.) Beauv. | ||||||||
| Common Names: | Mackenzie hairgrass | ||||||||
| DISTRIBUTION | |||||||||
| Canada: | northwestern Saskatchewan | ||||||||
| Saskatchewan: | northwestern Saskatchewan; Lake Athabasca | ||||||||
| Ecoregion: | Athabasca Plain | ||||||||
| HABITAT | |||||||||
| Saskatchewan: | sand dunes and large lake beaches | ||||||||
| Associated Species: | Bromus sp., Calamagrostis sp., Elymus sp. | ||||||||
| RARITY STATUS | |||||||||
| Provincial
Status According to Harms (2003): |
Vulnerable |
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| Nature Conservancy Status: | G2G3 S2 |
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| Saskatchewan
Species at Risk Status: |
Vulnerable |
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| COSEWIC Status: | None |
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| Deschampsia mackenzieana is vulnerable because it is rare or uncommon in Saskatchewan. This species is endemic to northern Saskatchewan and is restricted to a small area. No immediate threats are known but are possible in the future. | |||||||||
| SPECIES DESCRIPTION | |||||||||
| Height: | 60 – 120 cm | ||||||||
| Roots: | fibrous | ||||||||
| Stems: | caespitose, leafy at base | ||||||||
| Leaves: | to 5 mm wide, flat to folded, firm, prominently veined, translucent between the veins; sheaths compressed, keeled, glabrous | ||||||||
| Inflorescence: | panicle 10 – 25 cm long, open, often nodding, branches slender and spreading | ||||||||
| Spikelets: | 4 – 5 mm long, usually 2-flowered, disarticulating above the glumes, florets distant, pale or purplish | ||||||||
| Florets: | glumes thin, scarious, keeled, first glume 2 mm long, 1-nerved, secund glume 3 mm long, 3-nerved; callus hairs short; lemma 2.5 – 3.5 mm long, thin, apex truncate, 2 – 4-toothed; lemma awns about 1.5 mm long, straight or slightly curved, inserted near or above middle; palea shorter than lemma | ||||||||
| Fruits: | caryopsis | ||||||||
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