Biology 130
Taraxacum officionale, T.
laevigatum;
dandelion
[Asteraceae]
Tap-rooted perennials with a rosette of
variously divided and lobed basal leaves and one-to-several unbranched,
hollow flower stalks. Each
stalk bears a single 1-2" head of bright yellow ray flowers.
Peak of flowering is in the spring, and then sporadically
throughout the growing season.
A widespread weed of lawns, fields and waste places.
Native of Eurasia now found throughout the temperate world.
[135]
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