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Agastache scrophulariifolia (Willd.) Kuntze

Common Name: PURPLE GIANT HYSSOP
Coefficient of Conservatism: 5
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb
Status: SC

Forest borders, clearings, moist forests and floodplains.

The calyx lobes, besides running a little longer than in Agastache nepetoides, are also more narrowly lance-acute, less veiny, and less firm in texture; however, these are rather subjective characters. Agastache scrophulariifolia does have a somewhat larger inflorescence; when pressed the larger inflorescences (calyx tip-calyx tip) are ca. 14–20 mm wide, those of A. nepetoides generally run 10–16 mm wide.

Recent collections are few.

R. W. Smith

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Counties
Cass
Ingham
Ionia
Kalamazoo
Kent
Lenawee
Oakland
St. Clair
St. Joseph
Washtenaw
Wayne

Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March, 28, 2025
https://lsa-miflora-p.lsait.lsa.umich.edu/#/record/1534