| Pycnanthemum monotrichum | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Lamiaceae |
| Genus: | Pycnanthemum |
| Species: | P. monotrichum |
| Binomial name | |
| Pycnanthemum monotrichum | |
Pycnanthemum monotrichum, commonly known as one-hair mountain-mint, is an extinct [1] [2] species of herbaceous perennial plant in the family Lamiaceae endemic to Southeastern Virginia. [3] Pycnanthemum monotrichum inhabited dry, sandy woodlands and clearings in Virginia's coastal plain. [4] It is a poorly known taxon and may represent a hybrid, or a more abundant species that has been overlooked. [5] [6] Pycnanthemum monotrichum bloomed from July through September and grew up to four feet tall. [7]