Agastache urticifolia

(Horsemint Giant Hyssop)

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Agastache urticifolia, CR13 south of Meeker, Rio Blanco Co. 2349

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Agastache urticifolia, Booth Falls Trail, Eagle Co. 4367

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Agastache urticifolia, Booth Falls Trail, Eagle Co. 3942

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Agastache urticifolia, CR13 south of Meeker, Rio Blanco Co. 2348

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Agastache urticifolia, Booth Falls Trail, Eagle Co. 3973

Scientific Name Agastache urticifolia USDA PLANTS Symbol AGUR
Common Name Horsemint Giant Hyssop, Nettleleaf Giant Hyssop ITIS Taxonomic Serial No. 32450
Family Lamiaceae (Mint) SEINet
Reference
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Description Life zones and habitat: Foothills to subalpine (6700 to 10900 ft.); often in moist areas, rock outcrops, along streambanks, meadsows and open areas in woods.
Plant: Upright perennial 2 to 6+ feet tall; four-sided stems.
Leaves: Opposite, ovate to deltoid-ovate stem leaves with toothed edges, smooth on top, light green on bottom.
Inflorescence: Small white to purplish flowers in a dense terminal spike, each with two pairs of stamens projecting beyond petals.
Bloom Period: June to September.
Reference: "Flora of Colorado" by Jennifer Ackerfield and "Wildflowers of the Rocky Mountains" by Carl Schreier.
BONAP Distribution Map

Colorado Status:
Native

© Tom Lebsack 2022

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County