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 Siberia32 Middle Asia33 Caucasus34 Western Asia36 China37 Mongolia40 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)
Image resource
© Royal Botanic Gardens, Kew