Publication: Brittonia. 36: 11, figs. 1C, D, 2A–C, F. 1984.
Origin: Native
Herbarium search: CPNWH
Notes: Rare. FNA notes it is an amphiploid hybrid derived from S. romanzoffiana and S. magnicamporum Sheviak, a species of central North America.
References:
Last updated 3/23/2021 by David Giblin.