Vascular Plants of the Gila Wilderness

Presented in Association with the
Western New Mexico University Department of Natural Sciences

Centaurea melitensis Linnaeus
(Malta Star Thistle)


Family: Asteraceae

Status: Exotic, Noxious Weed (Class B, with more widespread distribution within the state)

Synonyms:
None

Centaurea melitensis is a yellow thistle with spines that are about 10mm long on the phyllaries, about half as long as those of the similar Centaurea solstitialis. Both species are yellow with winged stems, and both are exotic classified as noxious weeds in New Mexico. Both are found in disturbed areas in the open.
Many thanks to Bill Norris for spotting this plant!
Please click on an image for a larger file.



Centaurea melitensis, photo Russ Kleinman & Bill Norris, Silver City near Hill and Mississippi, May 21, 2020



Centaurea melitensis, inflorescence with relatively short spines on inflorescence bracts (phyllaries), photo Russ Kleinman & Bill Norris, Silver City near Hill and Mississippi, May 21, 2020



Centaurea melitensis, winged stem and leaf, photo Russ Kleinman & Bill Norris, Silver City near Hill and Mississippi, May 21, 2020


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