- Family: Lamiaceae
- Form: Upright herbaceous perennial reaching 2-3 ft.
- Leaves: Simple, opposite, crenate to serrate, lanceolate
- Stem/Bark: Heavy pubescence gives stems a whitish appearance
- Flower: Individual flowers are white or purple and project from purple or white, heavily pubescent calyces
- Fruit: Nonshowy, schizocarp
- Comments: This species outlived S. guaranitica and S. Vanhouttii in the IRREC teaching gardens