Common Name:
nipplewort
Scientific Name:
Lapsana communis
Family Name:
Asteraceae (Compositae)
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Aster or Sunflower Family
Life Cycle
introduced annual or biennial, reproducing by seed
Stems
upright, granular hairs below often smooth above in inflorescence, weakly ridged, branching above, milky juice
Leaves
alternate, large oval terminal lobe with up to 2 or more pairs of small side lobes, lanceolate above and unlobed, margins toothed and often wavy, sparsely hairy above and below, winged petiole
Flowers
heads of pale yellow ray (ligulate) florets, ray tips blunt and 5-toothed; terminal clusters, several to many, long peduncles
