| Common
Name: nipplewort
Scientific Name: Lapsana communis L.
Family Name: Asteraceae (Compositae) - Aster or
Sunflower Family
Identification
Notes:
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 growth
habit 1, growth
habit 2, growth
habit 3, seedling
1, seedling
2, seedling
3
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
leaves 1, leaves 2, leaves 3, leaves 4, leaves 5
flowers – heads
of pale yellow ray (ligulate) florets, ray tips blunt and 5-toothed;
terminal clusters, several to many, long peduncles flowers 1,
flowers 2, flowers 3, flowers 4
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Name | Scientific Name
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