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.
21 cm., purple, SW, no predation.
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...