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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Lamiales

Familia: Lamiaceae
Subfamilia: Nepetoideae
Tribus: Mentheae
Subtribus: Nepetinae
Genus: Agastache
Species: Agastache occidentalis

Agastache occidentalis (Piper) A.Heller, 1900

Vleckia occidentalis Piper, Erythea 6: 31 (1898).
Lophanthus occidentalis (Piper) K.Schum., Just's Bot. Jahresber. 26(1): 387 (1900).

Native distribution areas:

Continental: Northern America
Regional: Northwestern USA

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
Primary references

Heller, A.A., 1900. Muhlenbergia 1: 4.

Additional references

Govaerts, R.H.A. 2003. World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew. [unavailable for the public] Reference page.


Govaerts, R. et al. 2022. Agastache occidentalis in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2022 May 02. Reference page.
Hassler, M. 2022. Agastache occidentalis. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2022. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2022 May 02. Reference page.
International Plant Names Index. 2022. Agastache occidentalis. Published online. Accessed: May 02 2022.

Vernacular names
العربية: أغستاش غربي
English: western giant hyssop

Agastache occidentalis is a species of Agastache first described by Charles Vancouver Piper, and given its current name by Amos Arthur Heller.[1][2][3]

It is found in seasonably wet areas west of the Cascades in Oregon and Washington.[4]

"Agastache occidentalis (Piper) A.Heller". Plants of the World Online.
Roskov Y.; Kunze T.; Orrell T.; Abucay L.; Paglinawan L.; Culham A.; Bailly N.; Kirk P.; Bourgoin T.; Baillargeon G.; Decock W.; De Wever A.; Didžiulis V., eds. (2014). "Species 2000 & ITIS Catalogue of Life: 2014 Annual Checklist". Species 2000: Reading, UK. Retrieved 26 May 2014.
ITIS Global: The Integrated Taxonomic Information System, (Canada), (Mexico)
"Plants Profile for Agastache occidentalis (western giant hyssop)".

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