INULA 
¢Inula helenium L., elecampane, p. 1536 
IVA, marsh elder 
Iva annua L., marsh elder, os weed [S: J. ciliata Willd.] 
- ckson, 1960), p. 1536 
var. ann 
*var. pie (Small) R. oe (Jackson, 1960) 
var. macrocarpa (S. F. Blake) R. Jackson, fossil marsh elder [S: 
I. ciliata var. ea S. F. Blake] (Jackson, 1960) 
xanthifolia Nutt. 
= 
KRIGIA [S: incl. SERINIA] (Shinners, 1947) 
Krigia biflora (Walter) S. F. Blake, false dandelion, B aig 
K. caespitosa (Raf.) Chambers, dwarf dandelion [S: S 
Oe. has ) Kuntze] (Shinners, 1947. , Catone, 
1973), p. 1 
K. dandelion (L.) ln potato dandelion, dwarf dandelion, p. 1630 
K. occidentalis Nutt., dwarf dandelion, p. 1630 
K. virginica (L.) Willd., dwarf dandelion, p. 1630 
KUHNIA (see BRICKELLIA) 
LACTUCA, lettuce 
Lactuca canadensis L., wild lettuce [S: incl. var. canadensis f. 
angustata Wieg., vat. latifolia Kuntze f. exauriculata 
Wieg., var. latifolia f. latifolia, var. ei Hid f. ete 
Fern., var. longifolia (Michaux) Farw. f. a 
Wieg,, var. longifolia f. longifolia, var. Aske Wieg. f. 
obovata, var. obovata f. stenopoda Wieg.] (the complex 
variation in leaf shape in this species has not 
studied in detail and a rational justification for 
infraspecific taxonomy is unavailable), p. 1639 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
