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Eryngium yuccifolium var. yuccifolium Michx.
Family: Apiaceae
Eryngium yuccifolium var. yuccifolium image
From Flora of Indiana (1940) by Charles C. Deam
Infrequent to frequent in moist sandy soil in prairie habitats in northwestern and western Indiana and in the southern counties in dry oak woods which, for the most part, were formerly known as the barrens.