Welcome to John C. Semple's web site on asters, goldenasters, goldenrods and related genera!
The site summarizes more than four decades of research done by JCS, his graduate students, and a small army of enthusiastic undergraduate volunteers and senior honours project students at the University of Waterloo.
JCS is responsible for all taxonomic decisions presented on this site.
Nearly all images were taken by JCS in the field, herbarium or lab either originally on slide film and since 2001 using digital cameras. Images contributed by other individuals are gratefully acknowledged.
This site replaces jcsemple.uwaterloo.ca
Last updated 26 May 2016 by J.C. Semple
© 2013, 2014, 2015, 2016 J.C. Semple, including all photographs unless otherwise indicated
Bachelor of Science (BSc), 1969, Tufts, Master of Arts (MA) 1971, Doctor of Philosophy (PhD), 1972, Washington University St. Louis
Nahanni N.P.R., NT, Canada, Aug 2003
Doctoral thesis title: The cytology, flavonoid chemistry and systematics of the Texas Sleepy Daisy Xanthisma texanum DC. (Asteraceae)