Helianthella quinquenervis

(Five-nerve Sunflower)

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Helianthella quinquenervis, Booth Falls Trail, Eagle Co. 4082

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Helianthella quinquenervis, Hwy 65, Grand Mesa, Mesa Co. 2594

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Helianthella quinquenervis, Kebler Pass, Gunnison Co. 3848

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Helianthella quinquenervis, Boreas Pass, Summit Co. 6252

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Helianthella quinquenervis, Herman Gulch, Clear Creek Co. 6088

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Helianthella quinquenervis, Hwy 65, Grand Mesa, Mesa Co. 2584

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Helianthella quinquenervis, Hwy 65, Grand Mesa, Mesa Co. 2555

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Helianthella quinquenervis, Hwy 65, Grand Mesa, Mesa Co. 2553

Scientific Name Helianthella quinquenervis USDA PLANTS Symbol HEQU2
Common Name Five-nerve Sunflower, Dwarf Nodding Sunflower, Five-nerve Helianthella ITIS Taxonomic Serial No. 37597
Family Asteraceae (Sunflower) SEINet
Reference
Click Here
Description Life zones and habitat: Montane to alpine (7200 to 13500 ft.); open woods, aspen groves, alpine meadows.
Plant: Erect, tall perennial up to 4 feet tall.
Leaves: Elliptic or ovate-lanceolate to lanceolate stem leaves up to 12 inches long, with 3 to 5 veins; sparsely hairy or smooth surface.
Inflorescence: Single, large, composite nodding flower heads up to 4 inches across with many yellow rays and yellow-green disk florets; green pointed phyllaries with bristly edges beneath the blossom.
Bloom Period: June to September.
References: "Flora of Colorado" by Jennifer Ackerfield, "Guide to Colorado Wildflowers" by G.K. Guennel and Flora of North America
BONAP Distribution Map


Map Color Key
Colorado Status:
Native

© Tom Lebsack 2022

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