agastache_foeniculum_pursh

Agastache foeniculum (Pursh) Kuntze - syn.Hyssopus anisatus Nutt.; Hyssopus foeniculum (Pursh) Spreng.; Lophanthus anisatus (Nutt.) Benth. - Lamiaceae - anise hyssop, blue giant hyssop, licorice mint, Anis-Ysop

Perennial herb, up to 1.20m tall, native to Northern America, naturalized and cultivated elsewhere; stem square; leaves ovate to broad-lanceolate, dull green, toothed, fragrant; flowers in terminal spikes, lavender to purple.
„Aromatic leaves can be used to make herbal teas or jellies. Seeds can be added to cookies or muffins. Dried leaves can be added to potpourris.“ MBG

The headspace volatiles from A.foeniculum leaves were dominated by methylchavicol (up to 90%). The headspace volatiles of the flowers included methylchavicol (0-97%) α-pinene (0-25%), myrcene (0-39%), and limonene (0-50%).
[Headspace analysis of the volatile oils of Agastache., Wilson, L.A., Senechal, N.P., Widrlechner, M.P., Journal of Agricultural and Food Chemistry, 40(8), 1992, 1362-1366]

estragole
(methyl chavicol)

limonene

1,8-cineole

The essential oil obtained by hydrodistillation from A.foeniculum cultivated in Iran (1.87% d.w.) contained mainly methyl chavicol (87.5%). Other major components were limonene (2.4%), 1,8-cineole (2.0%) and globulol (1.4%).
[Essential oil composition of Agastache foeniculum cultivated in Iran., Omidbaigi, R., Sefidkon, F., Journal of Essential Oil Research, 15(1), 2003, 52-53]

Hydrodistillation of A. foeniculum plants gave an odorous pale yellow EO (yield 1.8%) with main components methylchavicol (94.8%) and limonene (2.9%).
[Bălănescu, Fănică, et al. „Bridging the chemical profile and biological activities of a new variety of Agastache foeniculum (Pursh) Kuntze extracts and essential oil.“ International Journal of Molecular Sciences 24.1 (2023): 828] https://www.mdpi.com/1422-0067/24/1/828/pdf?version=1672730938

Edwards’s Botanical Register, vol.15 t.1282 (1829) [M. Hart] plantgenera.org