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Subfamily

VII. Subfam. Nepetoideae (Dumort.) Luerss. (1882).

VII. 2. Tribe Mentheae Dumort. (1827).

VII. 2. C. Subtribe Nepetinae Coss. & Germ. (1845).

Description

Stoloniferous perennial herbs, not aromatic, often gynodioecious; leaves simple; inflorescence of distant, few-flowered cymes, shortly pedunculate to sessile, in axils of bracts; bracts leaf-like; bracteoles subulate, inconspicuous; calyx tubular to campanulate, slightly curved near throat, indistinctly 2-lipped, 5-lobed (3/2), lobes equal, broadly triangular to linear; corolla strongly 2-lipped (2/3), blue-violet, lilac or pink, posterior lip straight, 2-lobed, anterior lip with median lobe flat or concave, flabellate or reniform, margin undulate or entire, tube longer than calyx, gradually or abruptly dilated toward throat; stamens of hermaphrodite flowers exserted from tube, included under lip of corolla, inserted near throat, filaments parallel, thecae divergent at 90°; nutlets oblong-ovoid, smooth, areole basal, orbicular or elliptic. 2n = 18, 24, 36.  Four to eight species.  Mostly in grasslands, forest margins and streamsides of temperate Eurasia; cultivated in N and S America.

Distribution

Native to:

10 Northern Europe
11 Middle Europe
12 Southwestern Europe
13 Southeastern Europe
14 Eastern Europe
30 Siberia
31 Russian Far East
32 Middle Asia
33 Caucasus
34 Western Asia
36 China
38 Eastern Asia
41 Indo-China

Introduced to:

21 Macaronesia
51 New Zealand
70 Subarctic America
71 Western Canada
72 Eastern Canada
73 Northwestern U.S.A.
74 North-Central U.S.A.
75 Northeastern U.S.A.
76 Southwestern U.S.A.
78 Southeastern U.S.A.
85 Southern South America

Synonyms

Chamaeclema Moench, Methodus: 393 (1794).

Glechonion St.-Lag., Ann. Soc. Bot. Lyon 7: 126 (1880).

Chamaecissos Lunell, Amer. Midl. Naturalist 4: 516 (1916).

Meehaniopsis Kudô, Mem. Fac. Sci. Taihoku Imp. Univ. 2: 236 (1929).

Publication

Glechoma L., Sp. Pl. 2: 578 (1753); Budantsev, Bot. Zhurn. 77, 12: 118-128 (1992), rev.

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Image resource

© Royal Botanic Gardens, Kew