Scientific details

SCIENTIFIC NAME: Helianthus annuus

 COMMON NAME(S): Common Sunflower
SYNONYM(S):
FAMILY: ASTERACEAE (COMPOSITAE) - Sunflower family
ORIGIN: North America
HABITAT: Gardens
RANGE: Throughout North America
TYPE: Annual
HEIGHT: 3-8'
CHARACTERISTICS: Stem stout, rough-textured
LEAVES: Alternate, simple, broadly oval-shaped, pointed at tip, toothed along margins, to 15" long; covered with bristly hairs
FLOWERS: Large, daisy-like head of many small brown flowers ringed by yellow petals, to 1' diameter
FLOWERING SEASON: Spring through fall
FRUITS: 1-seeded, edible

ALLERGENIC COMPONENTS: All parts
ALLERGENIC PRINCIPLES: Unknown
ALLERGENIC PROPERTIES: Dermatological
COMMENTS: Contact dermatitis has been reported among field workers in sunflower production.

Photo 1
Photo 2
Photo 3

Information contained in the pages of Allergenica.com was compiled from a variety of references, however plants growing under different environmental conditions often vary considerably in some characteristics and behavior, and there is no guarantee that a given plant will always conform to the description provided nor will always affect the body's sensitivity to allergens in ways described here. Allergenica.com and Betrock Information Systems assume neither responsibility nor liability for the information presented in these pages.
For additional information and professional advice, please consult a specialist in allergy and immunology - Copyrigt © - 2000-2005