Pycnanthemum tenuifolium narrow-leaved mountain-mint Lamiaceae PYTE; Bx, pb; R;


Pycnanthemum . (Accessed 4/2014).

Pycnanthemum tenuifolium is a perennial herb to 80 cm, colonial from rhizomes, hardly aromatic, very leafy, many short axillary branches. 

Leaves opposite, linear, to 5 cm long, 0.4 cm wide. 

Flowers white with purple spots, bilaterally symmetrical, tubular, to 0.8 cm long, 2-lipped, lower lip 3-lobed, calyx lobes linear, flowers in numerous small heads, basal bracts of head narrow often longer than heads, inner bracts numerous; blooming June-Sept. 

Fruit dry nutlets; fruiting Sept. – Oct. 

Wetland status: FACW. 

Frequency in NYC: Very infrequent. 

Origin: Native. 

Habitat: Moist to dry soil, fields, bogs.