Page authors: Don Knoke, David Giblin
Agastache urticifolia
nettle-leaf giant-hyssop

Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Colorado.

Habitat: Dry open slopes and draws, foothills to middle elevations in the mountains

Flowers: May-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bumblebees, bees, hummingbirds


Perennial herbs from fibrous roots and branching, woody base, the numerous, square stems simple or branched, 4-15 dm. tall, glabrous or finely puberulent.


Leaves opposite, petioles 1-5 cm. long, the blades ovate to deltoid, with rounded teeth, 4-10 cm. long and 2-8 cm. wide, glabrous or finely scabrous on both sides.


Inflorescence spike-like, 3-15 cm. long; calyx prominently veined, the 5 equal teeth 3-5 mm. long, narrowly triangular, acuminate, usually tinged with lavender-purple; corolla whitish, 10-14 mm. long, two-lipped, with short lobes; stamens 4, exerted, the upper pair longer than the lower; style slender, 2-parted; ovary superior, 2-celled


Fruit of 4 nutlets.

Accepted Name:
Agastache urticifolia (Benth.) Kuntze
Publication: Revis. Gen. Pl. 2: 511. 1891.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Agastache urticifolia in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Agastache urticifolia checklist entry.

OregonFlora: Agastache urticifolia information.

E-Flora BC: Agastache urticifolia atlas page.

CalPhotos: Agastache urticifolia photos.

USDA Plants: Agastache urticifolia information.

49 photographs:
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