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Observed: 5th September 2011 By: ap3535
S159 Neighbourhood Nature - course complete
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Family Compositae. Approx. 35-40cm high, with dark green, shiny leaves with dark-red stems and leaf veins. Leaves spiny, clasping stem. Flowers consist of a teminal cluster with short stalks; bracts also marked with dark-red. Flowers bright yellow, many-petalled, approx 2cm dia. Flower bud oblong before opening, becoming pyramidal once flowering is over.

Species interactions

No interactions present.

Species with which Prickly Sow-Thistle (Sonchus asper) interacts