Scientific details

SCIENTIFIC NAME: Ambrosia tomentosa

 COMMON NAME(S): Bursage, Skeleton leaf burr ragweed
SYNONYM(S): Franseria discolor Nutt.
FAMILY: ASTERACEAE (COMPOSITAE) - Sunflower family
ORIGIN: Southwest United States
HABITAT: Dry sands
RANGE: Southwest and central United States
TYPE: Perennial with creeping rootstock
HEIGHT: 4-12"
CHARACTERISTICS:
LEAVES: Alternate, simple but deeply lobed, to 1'5" long; densely hairy below, smooth abobe
FLOWERS: Tiny heads of inconspicuous flowers grouped on spike-like stems, male and female flowers in separate heads on the same plant
FLOWERING SEASON: Summer
FRUITS: Small, single-seeded with a few spines and two beaks at the top

ALLERGENIC COMPONENTS: Pollen
ALLERGENIC PRINCIPLES: Pollen allergens
ALLERGENIC PROPERTIES: Respiratory
COMMENTS:

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