Coefficient of Conservatism:
Coefficient of Wetness:
AMERICAN FEVERFEW, WILD QUININE
Including P. hispidum of Michigan Flora
Native in prairie remnants in adjacent Indiana (and beyond), and should be sought in southwestern Michigan. Not collected until 1936 (Kalamazoo Co.), our occurrences represent either waifs or escapes from cultivation into fields, along railways, and other disturbed open areas, or persisting from so called prairie plantings (as in Lenawee Co.) Plants with the upper leaves clearly auriculate-clasping and larger heads have been segregated as var. hispidum (Raf.) Mears or P. hispidum Raf., but are now considered part of the variation of P. integrifolium.