Grindelia nelsonii is a North American species of flowering plants in the family Asteraceae.
It is endemic to western Mexico, native to the States of Michoacán, Jalisco, and Colima.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 nelsonii is taller than most of its relatives, sometimes reaching 200 cm (80 inches or almost 7 feet) in height. It also produces a flat-topped array of several flower heads at the end of each stem, rather than just one as is common in related species.Steyermark, Julian Alfred. 1934. Annals of the Missouri Botanical Garden 21(3): 463-464 diagnosis in Latin, description and commentary in EnglishNesom, G.L. 1990. Studies in the systematics of Mexican and Texan Grindelia (Asteraceae: Astereae). Phytologia 68(4): 315 commentary in English
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