|Braun's thoroughwort, Lucy Braun's snakeroot, Lucy Braun's white snakeroot|
|(Fern.) King & H.E. Robins.|
|Kimberlie McCue, Ph.D.|
The following Participating Institutions are custodians for this species in the CPC National Collection:
Missouri Botanical Garden
The conservation of Ageratina luciae-brauniae is fully sponsored.
Kimberlie McCue, Ph.D. contributed to this Plant Profile.
Lucy Braun's snakeroot is closely related to several familiar plant species: thoroughworts, boneset, Joe-pye-weed, and white snakeroot. The last-mentioned, when eaten by cows, was the Midwestern source of the deadly milk sickness, which also plagued early settlers and killed Abraham Lincoln's mother. Ageratina luciae-brauniae is a shy member of the genus, living under rock overhangs where its greatest immediate threat is trampling by rock climbers.
Distribution & Occurrence
- South Carolina
Shaded wet sandstone, ledges and overhangs (Kral 1983).
|Between 40 and 50 sites in total. Number of individuals is low at any given site (Campbell et al. 1994).|
Conservation, Ecology & Research
(Kral 1983, Campbell 1994).
King, R.M.; Robinson, H. 1970. Studies in the Eupatorieae (Compositae). XIX. New combinations in Ageratina. Phytologia. 19: 208-215.
Walck, J.L.; Baskin, C.C.; Baskin, J.M. 1997. Comparative achene germination requirements of the rockhouse endemic Ageratina luciae-brauniae and its widespread close relative A. altissima (Asteraceae). American Midland Naturalist. 137, 1: 1-12.