Sow thistle leaves are also food for other insects ... Some, in fact, can produce seeds in staggering numbers — as many as 25,000 per plant. But sow thistles also help to colonize waste areas ...

The lobes in each leaf of prickly sow thistle do not tend to cut in so close to the midrib of the plant as in sow thistle leaves. It could also perhaps be confused with hawksbeard due to its leafy ...

Be sure to forage only in nonpolluted areas, and verify plant identity with an expert ... Though it looks a lot like the also-edible dandelion, the sow thistle is much more destructive.

The “Prickly sow-thistle” — Sonchus asper — has really ... As a public service, the herbarium offers free plant identifications. For more information, visit www.herbarium.org, call ...

a key problem as plant numbers dwindle due to climate change, predators and habitat change, is the lack of genetic diversity that has left plants like the Alpine blue-sow-thistle weak and less ...