Subfamily

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

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

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

Description

Perennial herbs, aromatic; leaves simple, dentate; inflorescence thyrsoid, terminal, spike-like or panicle-like, cymes pedunculate or sessile; bracts reduced, lower often leaf-like; bracteoles subulate; calyx tubular or campanulate, straight, indistinctly 2-lipped, 5-lobed (3/2), lobes equal, throat open; corolla strongly 2-lipped, 5-lobed (2/3), pink, blue to violet or white, posterior lip straight, anterior lip with median lobe widest, spreading, entire or undulate, lateral lobes straight, tube gradually dilating to throat; stamens much exserted or included, filaments parallel or posterior pair antrorsely bent, thecae parallel; stigma-lobes equal, spreading; disc 4-lobed; nutlets ellipsoid to obovoid, smooth with apex hairy, areole oblong or orbicular. 2n = 18. About 22 species.  Mountains or deserts of U.S.A, Southern Canada and Mexico, one species in W Asia. Sectional treatment after Sanders (1987).   Sect. Agastache: Stamens long-exserted, filaments of posterior stamens antrorsely bent, and crossing anterior pair.  Seven species in U.S.A. and Canada, one species in Asia.   Sect. Brittonastrum (Briq.) Lint & Epling: Stamens included or shortly exserted under posterior lip of corolla, filaments of stamens all parallel. 14 species.  SW United States and Mexico.

Distribution

Native to:

31 Russian Far East
36 China
38 Eastern Asia
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.
77 South-Central U.S.A.
78 Southeastern U.S.A.
79 Mexico

Introduced to:

41 Indo-China

Synonyms

Flessera Adans., Fam. Pl. 2: 192 (1763).

Lophanthus Benth., Edwards's Bot. Reg. 15: t. 1282 (1829), nom. illeg.

Dekinia M.Martens & Galeotti, Bull. Acad. Roy. Sci. Bruxelles 11(2): 195 (1844).

Brittonastrum Briq. in H.G.A.Engler & K.A.E.Prantl, Nat. Pflanzenfam. 4(3A): 234 (1896).

Publication

Agastache J. Clayton ex Gronov., Fl. Virgin.: 88 (1762); Lint & Epling, Amer. Midl. Natur. 33: 207-230 (1945), rev.; Sanders, Syst. Bot. Mon. 15: 1-92 (1987), rev., one sect.; Budantsev, Bot. Zhurn. 78, 2: 106-115 (1993), rev.

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Species found in RBG Kew living collections

2008-21 Agastache 'Hazy Days'  MOLS   DEC_N H17 
2008-160 Agastache 'Honey Bee Blue'  COSE   157 79 
2004-1514 Agastache 'Honey Bee Blue'  COSE   186 03 
2004-1922 Agastache neptoides N BEAL   154 0406 
1992-803 Agastache palmeri (B.L.Rob.) Lint & Epling var. palmeri  CDRX 1229 F JOD SEED 
1994-2129 Agastache palmeri (B.L.Rob.) Lint & Epling var. palmeri N VERA 12 F TRO_N SEED 
1993-99 Agastache rupestris (Greene) Standl. N WLKR  F 154 0402 
2006-893 Agastache urticifolia  ORDN   186 03 

Image resource

© Royal Botanic Gardens, Kew