Plant Pycnanthemum flexuosum (Appalachian Mountainmint) By P Dahal October 27, 2017 No Comments Share Tweet Google+ Pinterest LinkedIn Tumblr Email + This pubescent plant has a simple stem, growing from one to two feet high. The leaves are sessile, entire, and linear; flowers are white, and fruit an achenium. Reference: http://www.theplantlist.org/tpl1.1/record/kew-171044 https://www.plants.usda.gov/core/profile?symbol=PYFL Share. Twitter Facebook Google+ Pinterest LinkedIn Tumblr Email