Packera insulae-regalis R. R. Kowal (ined.)
Common Name: RAGWORT
Synonym: Senecio pauperculus
Coefficient of Conservatism: 10
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb

Included in Senecio pauperculus in Michigan Flora

Rocky openings; apparently endemic to Isle Royale.

Packera insulae-regalis is newly described fertile hexaploid, probably derived from hybridization between tetraploid P. paupercula and octoploid P. indecora. The flowering stems are quite similar to those of P. paupercula so the vegetative rosettes are the best way to easily separate P. insulae-regalis from P. paupercula. See Kowal, Judziewicz, & Edwards (2011) for additional information.


Keweenaw County
    Only on Isle Royale


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. October 22, 2021.