Great Blue Lobelia (Lobelia siphilitica) is a tall, single-stalk summer wildflower, blooming during late-summer in the Great Smoky Mountains National Park.
It favors moist streambanks and roadsides. The pictures here were taken along the Greenbrier Road.
The Latin name siphilitica refers to the use of this plant as a treatment for syphilis.
Please stop in and visit me to see the complete display of Smoky Mountain Photography at the William Britten Gallery in Gatlinburg, TN.