Pycnanthemum tenuifolium

little-leaved mountain mint
Flowers and foliage
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Pycnanthemum
Species: P. tenuifolium
Binomial name
Pycnanthemum tenuifolium
Schrad.
Synonyms

Pycnanthemum flexuosum auct. non Walter: misidentified)
Pycnanthemum linifolium

Pycnanthemum tenuifolium (little-leaved or slender-leaved mountain mint) is a plant in the mint family, Lamiaceae.

Many authors believed that the name Pycnanthemum flexuosum refers to this plant, but this does not appear to be correct.

Description

Pycnanthemum tenuifolium is a herbaceous plant with narrow, opposite, simple leaves, on wiry, green stems. The flowers are white, borne in summer. Like most plants in the genus, the foliage has a strong mint fragrance when crushed or disturbed.