Scientific details

SCIENTIFIC NAME: Ambrosia bidentata

 COMMON NAME(S): Lance-leaf ragweed, Southern ragweed
SYNONYM(S):
FAMILY: ASTERACEAE (COMPOSITAE) - Sunflower Family
ORIGIN: Central United States
HABITAT: Open prairies and roadsides
RANGE: Central and eastern United States to Texas
TYPE: Annual herb
HEIGHT: 3'
CHARACTERISTICS:
LEAVES: Alterante, simple, lance-shaped to 4" long; clasping at the base and stiffly hairy
FLOWERS: Inconspicuous flowers grouped in small heads, male and female flowers in separate heads on the same plant
FLOWERING SEASON: Late summer to fall
FRUITS: Tiny, single-seeded with four stout spines at the top

ALLERGENIC COMPONENTS: Pollen, foliage
ALLERGENIC PRINCIPLES: Pollen proteins, oleoresin
ALLERGENIC PROPERTIES: Respiratory and dermatitis
COMMENTS:

Photo 1
Photo 2
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