Agastache urticifolia

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Agastache urticifolia
Giant hyssop Agastache urticifolia.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Agastache
Species: A. urticifolia
Binomial name
Agastache urticifolia
closeup of A. urticifolia flowerhead

Agastache urticifolia is a species of flowering plant in the mint family known by the common name nettleleaf giant hyssop[1] or horse mint.[2] It is native to western North America from British Columbia to California to Colorado, where it grows in many habitat types. This is an aromatic perennial herb growing an erect stem with widely spaced leaves, each lance-shaped to nearly triangular and toothed. The leaves are up to 8 centimeters long and 7 wide. The inflorescence is a dense spike of many flowers. Each flower has long sepals tipped with bright purple and tubular corollas in shades of pink and purple. The fruit is a light brown, fuzzy nutlet about 2 millimeters long. The plant was used medicinally by several Native American groups, especially the leaves.


  1. ^ "Plants Profile for Agastache urticifolia (nettleleaf giant hyssop):". PLANTS Web Development Team. Retrieved 3 April 2017.
  2. ^ "Calflora: Agastache urticifolia:". Retrieved 3 April 2017.

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