State Rank Reason (see State Rank above)
Documented for Montana from one 1948 collection by W. E. Booth near Alzada.
Rhizomatous perennials. Stems erect, 5–20 cm. Leaves cauline, 2 or 3 (solitary on sterile shoots), short-petiolate; blade cordate, ovate, 4–7 cm long, seemingly clasping the stem. Inflorescence an ebracteate raceme with 12 to 25 flowers. Flowers regular, star-shaped; tepals 4, white, separate, obovate, ca. 2 mm long, spreading; stamens ca. as long as the tepals; stigma 2-lobed. Fruit a globose berry, 4–6 mm long, red, mottled when immature (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Flowering in June.
Moist, humic soil in riparian forest on the plains.