Sagina decumbens ssp. decumbens (Ell.) Torr. & Gray | Species Image Gallery (opens in a new window) |
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TAXONOMY | |||||||||
Family: | Caryophyllaceae | ||||||||
Genus: | Sagina | ||||||||
Species Synonyms: | Sagina decumbens var. smithii (Gray) S. Wats. | ||||||||
Common Names: | trailing pearlwort | ||||||||
DISTRIBUTION | |||||||||
Canada: | southeastern Alberta – southwestern Saskatchewan, Ontario – New Brunswick | ||||||||
Saskatchewan: | southwestern Saskatchewan; Cypress Hills | ||||||||
Ecoregion: | Cypress Upland | ||||||||
HABITAT | |||||||||
Saskatchewan: | dry hillsides | ||||||||
RARITY STATUS | |||||||||
Provincial
Status According to Harms (2003): |
Endangered/Extirpated? |
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Nature Conservancy Status: | G5 SH |
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Saskatchewan
Species at Risk Status: |
None |
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COSEWIC Status: | None |
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Sagina decumbens ssp. decumbens is endangered or extirpated from Saskatchewan. It is extremely rare, highly regionally restricted and almost always locally sparse. This plant has not been reported in Saskatchewan in recent surveys of the Cypress Hills area. | |||||||||
SPECIES DESCRIPTION | |||||||||
Height: | 2 – 10 cm | ||||||||
Roots: | fibrous |
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Stems: | tufted, erect to decumbent and spreading, branched from base, green or purple-tinged, glabrous or occasionally glandular-hairy above | ||||||||
Leaves: | basal leaves lacking or early deciduous; cauline leaves opposite, sessile, 4 – 20 mm long, to 1 mm wide, reduced upwards, linear, base connate, apex apiculate, glabrous, margin hyaline | ||||||||
Inflorescence: | cyme many-flowered, flowers occasionally solitary, terminal and axillary; pedicels filiform | ||||||||
Flowers: | perfect; calyx 5, 1.4 – 2.2 mm long, obscurely nerved, green with purple tip, margin narrowly hyaline; corolla 5, small, white; stamens 8 or 10; styles 5 | ||||||||
Fruits: | capsule many seeded, 5-valved, ovoid; seeds light tan, minutely tuberculate | ||||||||
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