San Diego County, California, US
Common; spiky composite head not opened; winged stems; 30 - 60 cm tall.
Brady, TX in McCullough County. In front of Brady Elementary; roadside lawn with many flowers.
Returning home from the 2012 Texas Society of Mammalogists conference in Junction, TX.
Uncommon plant in shady area; spiny composite head.
Collected with permit.
Non-native , smaller than Yellow Star-Thistle .
This was the only live/flowering one I saw all day. The others were long since dried up
prickly buds, thin, long stems. dry
Blue Oak/Sagebrush habitat, in recent road cut.
Centaurea melitensis (called Maltese star thistle in Europe, tocalote or tocolote in western North America) is an annual plant of the Asteraceae, 1- 11 dm high, with resin-dotted leaves and spine-tipped phyllaries. This plant is native to the Mediterranean region of Europe and Africa. It was introduced to North America in the 18th Century; the first documented occurrence in California is in the adobe of a building constructed in San Fernando in 1797. It is also...