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Malta Starthistle (Centaurea melitensis)

Submitted by November 3, 2014 12:11 pm

thumnail

Malta starthistle (synonyms: Napa starthistle, tocalote) is an annual invasive weed with foliage and winged stems that are grayish to green in color. Its thistle-like appearance
is similar to yellow starthistle (C. solstitialis), but Malta starthistle is distinguished by smaller yellow flowers and longer seedpods that are armed with relatively short spines
(less than 1/2 inch). Strategies for managing both species are similar.
Read all about it from the USFS.