SCIENTIFIC NAME: Senecio
COMMON NAME(S): Groundsels
FAMILY: ASTERACEAE (COMPOSITAE) - Sunflower family
ORIGIN: Worldwide, about 1,000 spp.
LEAVES: Alternate, often all at base of stem
FLOWERS: Many-flowered heads of usually yellow flowers
FLOWERING SEASON: Variable
FRUITS: 5-10 ribbed, dry, 1-seeded, with tuft of hair
ALLERGENIC PRINCIPLES: Pyrrolizidine alkaloids
ALLERGENIC PROPERTIES: Dermatological
COMMENTS: Many species will cause varying degrees of dermatitis on contact.