Yellow Starthistle

Yellow Starthistle (Baranby's Thistle)
Dry Creek
July 11, 2009

Yellow Starthistle (Baranby's Thistle)
Dry Creek
July 11, 2009
Technically not a native, Yellow Starthistle was introduced to the West Coast from Eurasia in the 1860s and currently infests 800,000,000 acres in California alone, 8 times the acreage since 1958. Each plant can produce 150,000 seeds. Poisonous to horses. Bad stuff.
