These plants are perennial herbs with stolons. The stems are prostrate or upright and bear leaf blades on long petioles. The inflorescences arising from the leaf axils have two to many flowers. The tubular corolla has two lobed lips,[3] and is generally blue-violet.[2] The genus is closely related to Marmoritis[2] but closer still to Meehania, and some species have in the past been moved between the latter genus and Glechoma.[5]
Glechoma hederacea L. – ground-ivy, creeping charlie – much of Europe, much of Russia, Central Asia, Xinjiang; naturalized in New Zealand and North America
Glechoma hirsuta Waldst. & Kit. – eastern and southeastern Europe
Glechoma longituba (Nakai) Kuprian. – Vietnam, Korea, eastern + central China, Russian Far East (Amur, Primorye)
Glechoma × pannonica Borbás – eastern Russia, Ukraine, Hungary, Baltic Republics (G. hederacea × G. hirsuta)
^Deng, Tao et al. (2015): Does the Arcto-Tertiary Biogeographic Hypothesis Explain the Disjunct Distribution of Northern Hemisphere Herbaceous Plants? The Case of Meehania (Lamiaceae). PLOS ONE10(2): e0117171. doi:10.1371/journal.pone.0117171 (Fulltext)