Common Name:
biennial
lettuce
Common Name Synonym:
tall blue lettuce
Scientific Name:
Lactuca biennis
Family Name:
Asteraceae (Compositae)
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Aster or Sunflower Family
Life Cycle
native biennial, reproducing by seed
Stems
upright, very tall, very leafy, smooth, branched above during flowering
Leaves
alternate, large, elongated, deeply cut pinnate lobes, lobes roughly triangular, margins toothed, smooth, petioled below, somewhat clasping above
Flowers
heads of light blue, cream or sometimes yellow ray (ligulate) florets, heads urn-shaped; compact clusters, large, terminal
