GLEDITSIA, honey locust 
Gleditisia aquatica Marshall, water locust, p. 873 
G. triacanthos L., honey locust, p. 873 
f. inermis C. Schneider, thornless honey locust 
f. triacanthos 
GYMNOCLADUS 
Gymnocladus dioica (L.) K. Koch, Kentucky coffee tree, p. 872 
HOFFMANNSEGGIA (see CAESALPINIA) 
SENNA, senna 
[S, G, M: CASSIA] (Irwin and Barneby, 1982) 
Senna marilandica (L.) Link, wild senna [S, G, M: Cassia 
marilandica L.] (Irwin and Barneby, 1982), p. 874 
S. obtusifolia (L.) H. Irwin & Barneby, sicklepod, coffee weed [S: 
Cassia tora L.; G, M: Cassia obtusifolia L.] (Irwin and 
Barneby, 1982), p. 875 
+S. occidentalis (L.) Link, coffee senna, coffee weed [S, G, M: 
Cassia occidentalis L.] (Irwin and Barneby, 1982), 
p. 874 
CALLITRICHACEAE, water starwort family 
CALLITRICHE, water starwort 
Callitriche heterophylla Pursh, large water starwort, p. 998 
var. heterophylla 
C. terrestris Raf., terrestrial starwort, p. 996 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
