Parthenocissus vitacea (Knerr) A.S. Hitchc.
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TAXONOMY
 
Family: Vitaceae
Genus: Parthenocissus
 
Species Synonyms: Parthenocissus inserta auct. non (Kern.) Fritsch
Parthenocissus quinquefolia auct. non (L.) Planch
Common Names: Virginia creeper
woodbine
 
DISTRIBUTION
 
Canada: southeastern Saskatchewan – southern Manitoba – southern Ontario
Saskatchewan: southeastern Saskatchewan; Souris River Valley
Ecoregion: Moist Mixed Grassland, Aspen Parkland
 
HABITAT
 
Saskatchewan: moist, wooded or shrubby slopes, or on large outcrop rocks
 
RARITY STATUS
 
Provincial Status According
to Harms (2003):
Threatened
Nature Conservancy Status:
G5
Saskatchewan Species at
Risk Status:
None
COSEWIC Status:
None
 
Virginia creeper is threatened because of extreme rarity in Saskatchewan. This species is regionally restricted to the Souris River Valley. No immediate threats are known but may occur in the future.
 
SPECIES DESCRIPTION
 
Growth Habit: loosely climbing or scrambling
Leaves: alternate, stalked, palmately compound, shiny above, pale to hairy below, leaflets sessile, margin coarsely saw-toothed
Tendrils: with 3 – 5 slender branches, not terminating in adhesive disks
Inflorescence: compound, dichotomously branched; flowers 10 – 60, stalked
Flowers: regular; sepals minute, 5-toothed; petals 5; stamens 5, opposite the petals; ovary 2-celled
Fruits: berry 1 – 1.2 cm wide; seeds to 5 mm ling, brown, wrinkled
 
PARTHENOCISSUS KEY FOR SPECIES FOUND IN SASKATCHEWAN
 
1 Tendrils terminating in adhesive disks, 3 – 9-branched; upper surface of leaves dull
P. quinquefolia
1 Tendrils not terminating in adhesive disks, 3 – 5-branched; upper surface of leaves glossy
P. vitacea