Lomatogonium is a genus of 18 species in the family Gentianaceae, found in cool temperate to subarctic regions of Asia, with two species ( L. carinthiacum, L. rotatum) also in Europe and one species ( L. rotatum) also in North America. By far the highest diversity is in China, with 16 species.
They are annual plant or perennial plant plants, growing to 5–15 cm tall, with a basal rosette of 2–3 cm long leaf, and sometimes secondary whorls of smaller leaves on the flower stems. The are 2 cm across, with the five white to pale blue petals joined at the base.
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