Fourleaf is a relatively unassuming milkweed, only a couple feet tall, and often producing just one umbel. It's a plant of woodlands, blooming just as spring turns to summer. The Cherokee used infusions for at least seven different ailments, and also used its fiber for bowstrings. Fourleaf milkweed grows in AL, AR, CT, DE, GA, IA, IL, IN, KS, KY, MA, MD, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, VA, VT, WV, and ON. Highland CO OH, 6/1/21. Dogbane family, Apocynaceae.