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Helianthus praecox
Also called Premature Sunflower
Helianthus praecox is a North American species of sunflower known by the common name Texas sunflower. It is endemic to Texas. Most of the populations are either along the Gulf Coast or in the Río Grande Valley.
Helianthus praecox grows on sandy soils and coastal prairies. It is an annual herb up to 150 cm (60 inches or 5 feet) tall. One plant usually produces 1-3 flower heads, each containing 11-16 yellow ray florets surrounding 35 or more red or purple disc florets.
Southeastern sunflower · Helianthus ambiguus · Swamp sunflower · Common sunflower · Western sunflower · Silverleaf sunflower · Arizona sunflower · Purpledisk sunflower · Serpentine sunflower · Helianthus brevifolius · California sunflower · Lakeside sunflower
Text excerpted from the Wikipedia article Helianthus praecox by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
