Grindelia microcephala, the littlehead gumweed, is a North American species of flowering plants in the family Asteraceae. It is native to the south-central United States, having been found only in the state of Texas.Biota of North America Program 2014 county distribution mapNesom, G.L. 1990. Studies in the systematics of Mexican and Texan Grindelia (Asteraceae: Astereae. Phytologia 68(4): 303–332 distribution map on page 307
Grindelia microcephala grows in rich bottom lands along streams. It is an annual herb up to tall. The plant usually produces numerous flower heads in open, flat-topped arrays. Each head has 16-27 ray flowers, surrounding a large number of tiny disc flowers.Flora of North America Grindelia microcephala de Candolle 1836
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