Native Plants
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Polygonum davisiae
Polygonum davisiae W.H. Brewer ex A. Gray
Davis Knotweed, Davis' Knotweed
Polygonaceae (Buckwheat family)
Synonym(s): Aconogonon davisiae, Aconogonum davisiae, Aconogonum davisiae var. glabrum, Aconogonum newberryi, Polygonum newberryi, Polygonum newberryi var. glabrum
USDA Symbol: PODA
USDA Native Status: L48 (N)
From the Image Gallery
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Plant Characteristics
Duration: PerennialHabit: Herb , Subshrub
Fruit Type: Achene
Size Notes: Up to about 20 inches tall.
Bloom Information
Bloom Color: White , Pink , GreenBloom Time: Jun , Jul , Aug
Bloom Notes: Greenish to pinkish white.
Distribution
USA: CA , ID , OR , WANative Habitat: Steep subalpine slopes, volcanic fell fields, often on talus or pumice.
Web Reference
Webref 30 - Calflora (2018) CalfloraWebref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resources
USDA: Find Polygonum davisiae in USDA PlantsFNA: Find Polygonum davisiae in the Flora of North America (if available)
Google: Search Google for Polygonum davisiae
Metadata
Record Modified: 2020-11-12Research By: CBR