thistle, annual sow

COMMON NAME: Thistle, annual sow
SCIENTIFIC NAME: Sonchus oleraceus
FAMILY: Asteraceae
LIFECYCLE: Annual
FEATURES: Rosette forming annual bolting during spring. Leaves lanceolate with distinct spines. Leaves
possibly lobed, lower leaves less likely to be lobed. Leaves along bolting stem producing ear-like
appendages clasping stem. Produces numerous flowers from a single bolting stem. Seed with pappus.
Plant can appear dark green to purple.
DESCRIPTION: Common annual weed in low-maintenance turfgrass. An annual, whereas most thistles are biennials.

Additional Rosette plant in semi-dormant turf.

Additional
Rosette plant in semi-dormant turf.