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Family: Asteraceae
common sunflower, more...
[Helianthus annuus subsp. jaegeri L., more ]
Etymology: Helianthus: derived from two Greek words helios, "sun," and anthos, "flower," in reference to the sunflower's supposed tendency to always turn toward the sun
Plants: erect, annual, 3'-10' tall forb with leafy, roughly hairy stems Leaves: mostly alternate, long-stalked, largest wide and oval, rough on both sides Flowers: head 3"-6" wide with yellow rays and a flat, dark disk at least 1 1/4" wide; inflorescence with several heads in a branched cluster, escaped cultivated forms usually with only 1 large head; blooms July-Sept. Fruits: dry, edible seed Habitat: sun; moist; disturbed sites Hazardous: Careful, this plant is hazardous! Conservation Status: Introduced - naturalized
Flora of North America: Flora of North America Floristic Rating: Wetland Indicator = FAC- USDA Plants Database: Federal Distribution and detailed information including photos USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"
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© Wisconsin State Herbarium, UW-Madison
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