Trichophorum clintonii (Gray) Sm. | Species Image Gallery (opens in a new window) |
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TAXONOMY | |||||||||||||||||||||
Family: | Cyperaceae | ||||||||||||||||||||
Genus: | Trichophorum | ||||||||||||||||||||
Species Synonyms: | Scirpus clintonii Gray Baeothryon clintonii (Gray) A. &D. Löve |
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Common Names: | Clinton’s bulrush | ||||||||||||||||||||
DISTRIBUTION | |||||||||||||||||||||
Canada: | central and eastern Alberta – west-central Saskatchewan, Ontario – New Brunswick | ||||||||||||||||||||
Saskatchewan: | west-central Saskatchewan; south of Meadow Lake | ||||||||||||||||||||
Ecoregion: | Boreal Transition | ||||||||||||||||||||
HABITAT | |||||||||||||||||||||
Saskatchewan: | moist sandy open woods | ||||||||||||||||||||
Associated Species: | Rubus arcticus, Rubus pubescens | ||||||||||||||||||||
RARITY STATUS | |||||||||||||||||||||
Provincial
Status According to Harms (2003): |
Endangered |
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Nature Conservancy Status: | G4 S1 |
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Saskatchewan
Species at Risk Status: |
None |
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COSEWIC Status: | None |
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Trichophorum clintonii is endangered in Saskatchewan because it is rare and highly regionally restricted in the province. Local population sizes vary and are threatened by planned developments. | |||||||||||||||||||||
SPECIES DESCRIPTION | |||||||||||||||||||||
Height: | 10 – 30 cm | ||||||||||||||||||||
Roots: | rootstocks short | ||||||||||||||||||||
Stems: | densely caespitose, base with persistent leaf sheaths and remnants of old leaves and stems, trigonous, scabrous on angles, very slender | ||||||||||||||||||||
Leaves: | lower sheaths orange to dark brown, blade lacking or small; leaves basal or sub-basal, blade 1.5 – 25 cm long, may equal culm, much shorter than culm in fruit, < 1 cm wide | ||||||||||||||||||||
Inflorescence: | spikelet solitary, terminal; bracts (or outermost scale) 3 – 6 mm long, shorter than or equal to spikelet, apex mucronate | ||||||||||||||||||||
Spikelets: | 3 – 7-flowered, 4 – 5 mm long; inner scales acute to obtuse, orangish-brown to dark brown | ||||||||||||||||||||
Flowers: | perianth bristles 3 – 6, equalling or shorter than achenes, terete, scabrous; stamens 3; styles 3-cleft | ||||||||||||||||||||
Fruits: | 1 – 2 mm long, obovoid, trigonous, smooth, scarcely beaked | ||||||||||||||||||||
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