Prickly Sowthistle (Sonchus asper)
Hendrie Valley, Burlington, ON.
May 30th, 2021. (1668)
Also known as Rough Milk Thistle, Spiny Sowthistle, Sharp-fringed Sow Thistle,
and Spiny-leaved Sow Thistle, it is native to Europe, western Asia, and northern Africa
and is an invasive species in North America.
and Spiny-leaved Sow Thistle, it is native to Europe, western Asia, and northern Africa
and is an invasive species in North America.
