SCIENTIFIC NAME: Solidago
COMMON NAME(S): Goldenrods
FAMILY: ASTERACEAE (COMPOSITAE) - Sunflower family
ORIGIN: Mostly Northern Hemisphere, especially North America, about 100 spp.
HABITAT: Meadows, pastures, disturbed areas, roadsides
HEIGHT: Variable, but usually 4' or less
LEAVES: Alternate, simple, often coarsely-toothed at margin, frequently clustered at base
FLOWERS: Small, yellow, clustered in numerous small heads arranged on elongated, branched-clusters
FLOWERING SEASON: Late summer, fall
FRUITS: Small, inconspicuous, dry, 1-seeded, with tuft of hair
ALLERGENIC PRINCIPLES: Unknown, perhaps sesquiterpene lactones
ALLERGENIC PROPERTIES: Dermatological
COMMENTS: Much late season hay fever is falsely attributed to goldenrod which produces pollen of minor allergenicity. The foliage, and perhaps flowers as well, of the plants can cause contact dermatitis when handled by sensitive individuals.