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*Sonchus Linnaeus. Sow-thistle, Milk-thistle.

Key to Sonchus

A genus of about 50-60 species, herbs and shrubs, of the Old World.

ID notes:Distinguished from Lactuca by its beakless cypselae. Sonchus also tends to have more florets per head (often 80+).

Ref: Cronquist (1980); Hyatt (2006) In Flora of North America Editorial Committee (2006a). Show full citations.

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Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Gary P. Fleming | Sonchus asper | Original Image ⭷

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