Grindelia palmeri is a rare North American species of flowering plants in the family Asteraceae. It is native to northeastern Mexico, found only in the State of San Luis Potosí.Nesom, G.L. 1990. Studies in the systematics of Mexican and Texan Grindelia (Asteraceae: Astereae). Phytologia 68(4): 316 distribution map on page 316
Grindelia palmeri is a herb up to tall, with numerous leafy stems sprouting from the base but generally not branching above ground level. The plant produces only one flower head per stem, the head across. Each head has 35-30 ray flowers surrounding numerous disc flowers.Steyermark, Julian Alfred. 1934. Annals of the Missouri Botanical Garden 21(3): 471–472 diagnosis in Latin, description and geographic information in English, line drawing on page 465 (figure 8 at right)
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External links photo of herbarium specimen at Missouri Botanical Garden, collected in San Luis Potosí in 1900, isotype of Grindelia palmeri