Classic texts: USDisp 1918.
Pycnanthemum pycnanthemoides
Pycnanthemum pycnanthemoides (Leavenw.) Fern.
Engl.: southern mountain mint.
Bot. syn.: Pycnanthemum tullium Benth., Pycnanthemum viridifolium (Fern.) E. Grant & Epling.
Classic texts: USDisp 1918.