Helianthus petiolaris

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Scientific Name Helianthus petiolaris USDA PLANTS Symbol
Common Name Prairie Sunflower ITIS Taxonomic Serial No.
Family Asteraceae (Sunflower) SEINet
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Description Semi-desert to montane life zones, sunny, dry areas; erect annual 2 to 4 feet or more tall, stems may be branched, with fine hairs; leaves mostly along stems, lance-shaped up to 6 inches long with petioles (stems), may be dotted with glands, hairy underneath, small teeth along edges; single composite flowers 2 to 3 inches across with 10 to 30 ray florets (petals) and reddish disk florets (centers). Resembles Common Sunflower (H. annuus) except for the leaves. Colorado Status

© Tom Lebsack 2017