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Lagochilus seravschanicus Knorr.

Photo S. Landrein

Lagochilus seravschanicus Knorr.

Photo S. Landrein

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

Shrubs, subshrubs or perennial herbs with woody rootstocks, with or without spines in leaf-axils, glabrous or sparsely hirsute with simple hairs; leaves entire or mostly palmatifid with spinose-mucronate or rounded lobes; inflorescence thyrsoid or racemoid, with up to 5-flowered cymes; bracteoles spinescent; calyx slightly zygomorphic, (4-)5-lobed, lobes subequal or unequal (3/2), posterior often longer, lobes spreading or erect, oblong to broadly ovate, often spinose-mucronate, equalling or longer than tube; corolla strongly 2-lipped, 5-lobed (2/3), white, yellowish-white, rarely pink, posterior lip long, straight, shallowly hooded, densely villous outside, 2-lobed, lobes sometimes 2-toothed, anterior lip with lateral lobes acute or emarginate, median lobe obcordate, tube densely pilose-annulate inside; stamens not or shortly exserted from corolla-tube, filaments complanate, anthers glabrous or hairy, thecae distinct; stigma-lobes equal; nutlets trigonous, obovoid, apex truncate or rounded, glabrous, pilose or glandular.  2n = 22, 34.  About 40 species.  Dry slopes, valleys, deserts of Iran to Mongolia, Russia (S. Siberia), NW China and N. Pakistan. Some medicinal, ornamental.

Distribution

Native to:

30 Siberia
32 Middle Asia
33 Caucasus
34 Western Asia
36 China
37 Mongolia
40 Indian Subcontinent

Synonyms

Yermoloffia Bél., Voy. Indes Or.: t. s.n. (1846).

Chlainanthus Briq. in H.G.A.Engler & K.A.E.Prantl, Nat. Pflanzenfam. 4(3a): 257 (1896).

Lagochilopsis Knorring, Novosti Sist. Vyssh. Rast. 1966: 197 (1966).

Publication

Lagochilus Bunge ex Benth., Lab. Gen. et Sp. 640 (1834)

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Image resource

© Royal Botanic Gardens, Kew