Phacelia denticulata

(Rocky Mountain Scorpionweed)

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Phacelia denticulata, Mosca Pass Trail, Great Sand Dunes NP 8805

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Phacelia denticulata, Mosca Pass Trail, Great Sand Dunes NP 8798

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Phacelia denticulata, Mosca Pass Trail, Great Sand Dunes NP 8780

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Phacelia denticulata, Mosca Pass Trail, Great Sand Dunes NP 8793

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Phacelia denticulata, Mosca Pass Trail, Great Sand Dunes NP 8814

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Phacelia denticulata, Mosca Pass Trail, Great Sand Dunes NP 8842

Scientific Name Phacelia denticulata USDA PLANTS Symbol PHDE2
Common Name Rocky Mountain Scorpionweed, Rocky Mountain Phacelia ITIS Taxonomic Serial No. 31484
Family Boraginacea (Forget-me-not), formerly Hydrophyllaceae Univ. of Wyoming Reference Click Here
Description Life zones and habitat: Foothills to montane (5500 to 10000 ft.); sandy or rocky soils.
Plant: Erect annual to 2 to 16 inches tall with hairy, sticky stems.
Leaves: Pinnately-lobed leaves 1/2 inch to 3 inches long.
Inflorescence: Very small (less than 1/8-inch across) pale blue flowers in partially coiled racemes, petals with coarse, toothed edges, stamens not extending past the petals.
Bloom Period: June and July.
References: "Flora of Colorado" by Jennifer Ackerfield and Wyoming Natural Diversity Database State Species Abstract by Walter Fertig.
Notes: Rare plant found only in a few counties in Colorado and southern Wyoming.
BONAP Distribution Map

Colorado Status:
Native

© Tom Lebsack 2022

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County