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Subfamily

VI. Subfam. Lamioideae Harley (2003)

Subfam. Stachyoideae (Dumort.) Luerss. (1882); Briq. in Engl. & Prantl (1895) et auct. mult., p.p., typ. incl.

Subfam. Prasioideae (Benth.) Thomé (1889)

Subfam. Pogostemonoideae P.D. Cantino, Harley & Wagstaff in Harley & Reynolds (1992).

Description

Annual or biennial herb, with simple hairs; leaves toothed, petiolate; inflorescence thyrsoid with many-flowered cymes; flowers pedicellate; bracts present; bracteoles present; calyx actinomorphic, 5-lobed, lobes subequal; corolla scarcely exceeding calyx, strongly 2-lipped, 4-lobed (1/3), pale pink, posterior lip long, hooded, anterior lip directed upwards, equal or slightly exceeding upper lip, corolla-tube exannulate; stamens very shortly exserted from corolla-tube, thecae weakly distinct, divaricate; stigma-lobes subequal to unequal; nutlets trigonous, truncate, with eglandular hairs at apex. 2n = 24.  One species: C. marrubiastrum (L.) Ehrh. ex Rchb. Steppes and disturbed grounds, from C Europe to SW Siberia and W. China (Xinjiang).

Distribution

Native to:

10 Northern Europe
11 Middle Europe
12 Southwestern Europe
13 Southeastern Europe
14 Eastern Europe
30 Siberia
32 Middle Asia
33 Caucasus
34 Western Asia
36 China
10 Northern Europe
11 Middle Europe
12 Southwestern Europe
13 Southeastern Europe
14 Eastern Europe
20 Northern Africa
21 Macaronesia
22 West Tropical Africa
23 West-Central Tropical Africa
24 Northeast Tropical Africa
25 East Tropical Africa
26 South Tropical Africa
27 Southern Africa
28 Middle Atlantic Ocean
29 Western Indian Ocean
30 Siberia
31 Russian Far East
32 Middle Asia
33 Caucasus
34 Western Asia
35 Arabian Peninsula
36 China

Publication

Chaiturus Willd., Fl. Berol. Prodr. 200 (1787).

Image resource

© Royal Botanic Gardens, Kew

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