Page author: David Giblin
Mentha spicata
spearmint
Specimens
Photos

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across much of North America to the Atlantic Coast.

Habitat: Banks of streams and ditches and other damp places.

Flowers: June-August

Origin: Introduced from Europe

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bumblebees, bees, butterflies

Description:
General:

Aromatic, perennial herbs from creeping rhizomes, the square stems nearly glabrous, upright, 3-10 dm. tall.

Leaves:

Leaves opposite, all cauline, sub-sessile, the blade lance-ovate to elliptic, 2-7 cm. long and 0.8-2.5 cm. broad, serrate, pointed, the mid-vein with stiff hairs beneath.

Flowers:

Verticels crowded into slender, terminal spikes, 3-12 cm. long and 0.5-1 cm. wide; calyx 1.5-2 mm. long, the tube glabrous, the 5 lobes with stiff marginal hairs; corolla 2-4 mm. long, nearly regular, four-lobed, with a short tube, pale lavender or sometimes white; stamens 4, equal, exerted; style 2-parted; ovary 2-celled, superior.

Fruits:

Nutlets 4

Accepted Name:
Mentha spicata L.
Publication: Sp. Pl. 2: 576. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Mentha spicata in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Mentha spicata checklist entry

OregonFlora: Mentha spicata information

E-Flora BC: Mentha spicata atlas page

CalPhotos: Mentha spicata photos

12 photographs:
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