Glechoma

{{short description|Genus of flowering plants in the mint and sage family Lamiaceae}}

{{Automatic taxobox

|image = Glechoma hederacea - Bluszczyk kurdybanek cm01.jpg

|image_caption = Glechoma hederacea

|display_parents = 2

|taxon = Glechoma

|authority = L.

|synonyms_ref =

|synonyms =

• Chamaeclema Moench
• Glechonion St.-Lag.
• Chamaecissos Lunell
• Meehaniopsis Kudô

}}

Glechoma is a genus of flowering plants in the mint family, Lamiaceae, first described for modern science in 1753. It is distributed in northern Asia and Europe with a center of diversity in Asia, especially China. One species is naturalized in New Zealand and in North America.[http://apps.kew.org/wcsp/namedetail.do?name_id=90035 Kew World Checklist of Selected Plant Families]Jang, T. and S. Hong. (2010). [http://onlinelibrary.wiley.com/doi/10.1111/j.1759-6831.2010.00101.x/full Comparative pollen morphology of Glechoma and Marmoritis (Nepetinae, Lamiaceae).] Journal of Systematics and Evolution 48(6), 464–73.[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=113621 Flora of China Vol. 17 Page 118 活血丹属 huo xue dan shu Glechoma Linnaeus, Sp. Pl. 2: 578. 1753. ][http://bonap.net/MapGallery/County/Glechoma%20hederacea.png Biota of North America Program 2013 county distribution map]

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, and is generally blue-violet. The genus is closely related to Marmoritis but closer still to Meehania, and some species have in the past been moved between the latter genus and Glechoma.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 ONE 10(2): e0117171. {{doi|10.1371/journal.pone.0117171|doi-access=free}} (Fulltext)

;Species:

1. Glechoma biondiana (Diels) C.Y.Wu & C.Chen – Gansu, Hebei, Henan, Hubei, Shaanxi, Sichuan
2. Glechoma grandis (A.Gray) Kuprianova – Japan, Taiwan, Jiangsu
3. Glechoma hederacea L. – ground-ivy, creeping charlie – much of Europe, much of Russia, Central Asia, Xinjiang; naturalized in New Zealand and North America
4. Glechoma hirsuta Waldst. & Kit. – eastern and southeastern Europe
5. Glechoma longituba (Nakai) Kuprian. – Vietnam, Korea, eastern + central China, Russian Far East (Amur, Primorye)
6. Glechoma × pannonica Borbás – eastern Russia, Ukraine, Hungary, Baltic Republics (G. hederacea × G. hirsuta)
7. Glechoma sardoa Halácsy & Wettst. – Sardinia
8. Glechoma sinograndis C.Y.Wu – Yunnan