Narrow-leaved Mountain Mint

(Pycnanthemum tenuifolium)

 

Color photograph: Copyright Nearctica.com, Inc.

Line Drawing: Britton, N.L., and A. Brown. 1913. An Illustrated Flora of the Northern United States and Canada, Second Edition.

Narrow-leaved Mountain Mint (Pycnanthemum tenuifolium)

Identification: Flowers white spotted with pink or violet. Petals fused into a tube for their lower half, but free and hardly modified in their upper halves. Top two petals fused into a single lobe, other petal lobes splayed with a ragged appearance. Calyx with regular teeth. Flowers arranged in tightly packed clusters, flowers appearing sporadically in the head. Stem square, hairless. Leaves very narrow, elongate, with smooth outer margins. Plant 1.5 to 2.5 feet in height.

Distribution: Throughout eastern North America.

Habitat: Narrow-leaved Mountain Mint is found in fields and thickets.

Flowering Period: July to September.

Narrow-leaved Mountain Mint
(Pycnanthemum tenuifolium)

Similar Species: 

The thin, elongate leaves are usually distinctive.

Whorled Mountain Mint (Pycnanthumum verticillatum)

 

 Similar Species