Tiny plants bearing a single flower may sometimes be found, especially very late in the season (October), often after blooming of normal-sized plants, which themselves are quite variable in shape and stature.
1. Principal mid-cauline leaves (those on main stem at or just below the lower branches) ovate to ovate-lanceolate, less than 4 times as long as broad or over 1 cm broad (or usually both).
1. Principal mid-cauline leaves linear to linear-lanceolate, (5–) 6–21 times as long as broad and less than 1 cm at their widest.
All species found in Gentianopsis
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. October 17, 2019. https://www.michiganflora.net/genus.aspx?id=Gentianopsis.