Malta Starthistle (Centaurea melitensis)

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.

Share this post

Scroll to Top