These often pale, essentially leafless plants obviously derive their nutrition from other plants, but whether or not with the aid of a fungus seems to be unknown.
1. Mid-cauline leaves alternate; anthers ca. 0.3โ0.5 mm long.
B. paniculata
1. Mid-cauline leaves opposite or subopposite; anthers ca. 0.5โ0.9 (โ1.1) mm long.
B. virginica
All species found in Bartonia
Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. May 16, 2022. https://michiganflora.net/genus.aspx?id=Bartonia.