Cuscuta corylii Engelm. | Species Image Gallery (opens in a new window) |
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TAXONOMY | |||||||||||||||||||||
Family: | Cuscutaceae | ||||||||||||||||||||
Genus: | Cuscuta | ||||||||||||||||||||
Species Synonyms: | none | ||||||||||||||||||||
Common Names: | hazel dodder | ||||||||||||||||||||
DISTRIBUTION | |||||||||||||||||||||
Canada: | southwestern Saskatchewan | ||||||||||||||||||||
Saskatchewan: | southwestern Saskatchewan; Mortlach area | ||||||||||||||||||||
Ecoregion: | Mixed Grassland | ||||||||||||||||||||
HABITAT | |||||||||||||||||||||
Saskatchewan: | parasitic on a variety of hosts, including Turtle Mountain goldenrod and wild licorice | ||||||||||||||||||||
RARITY STATUS | |||||||||||||||||||||
Provincial
Status According to Harms (2003): |
Vulnerable |
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Nature Conservancy Status: | G5 N1 S1 |
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Saskatchewan
Species at Risk Status: |
None |
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COSEWIC Status: | None |
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Hazel dodder is vulnerable because of extreme rarity and limitation to one region of the province. The Saskatchewan population is isolated from other populations of the same species. | |||||||||||||||||||||
SPECIES DESCRIPTION | |||||||||||||||||||||
Roots: | plants do not root in soil; suckers attach stem to other plants | ||||||||||||||||||||
Stems: | parasitic annual, twining, 0.4 – 0.6 mm diameter, yellow-orange | ||||||||||||||||||||
Leaves: | absent | ||||||||||||||||||||
Inflorescence: | small, branched, terminal flowers maturing first; flowers stalked | ||||||||||||||||||||
Flowers: | 2.5 – 3 mm long; sepals mostly 4, distinct, acute, surrounded by scale-like bracts; petals mostly 4, slenderly bell-shaped, petal tube to 2 mm long; scales in throat 2-cleft, very small; stamens equal to petal lobes; ovary thickened towards the top, stigma head-like | ||||||||||||||||||||
Fruits: | capsule spherical, becoming depressed spherical, capped by withered petals; seeds usually 4, 1.5 mm, globular, covered in bran-like scales | ||||||||||||||||||||
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