TRAGOPOGON, goat’s beard 
¢Tragopogon dubius Scop., goat’s beard, western salsify, p. 1634 
¢T. porrifolius L., salsify, vegetable oyster, oyster plant, p. 1632 
¢T. pratensis L., goat’s beard, meadow salsify, p. 1634 
VERBESINA, crownbeard, wingstem 
Verbesina alternifolia (L.) Britton, yellow ironweed, p. 1578 
+V. encelioides se, Benth. & Hook. f., golden crownbeard, 
p. 1 
*ssp. tear (Coleman, 1966; Wagner, 1979) 
ssp. area (Robinson & Greenman) J. Coleman [S: V. 
ncelioides var. exauriculata Robinson & Greenman] 
(Col eman, 1966) 
V. helianthoides Michaux, yellow crownbeard, p. 1578 
V. virginica L., white crownbeard, frost weed, tickweed, p. 1578 
var. virginica 
VERNONIA, ironweed 
Vernonia arkansana DC. [S: V. crinita Raf.] (Jones, 1972), p. 1457 
V. baldwinii Torrey, p. 1460 
ssp. baldwinii 
f. albiflora E. J. Palmer & Steyerm. 
f. baldwinii 
ssp. interior Pipes: Faust [S: V. baldwinii var. interior (Small) 
B. G. Schubert; M: V. baldwinii] (Faust, 1972) 
V. fasciculata Michaux; p- 1 
var. fasciculata 
V. gigantea (Walter) Trel. ex Branner & Cov. [S: V. altissima 
utt., incl. f. alba Mold., var. taeniotricha S. F. Blake] 
(Urbatsch, 1972) (note that no combination presently 
exists under V. gigantea for the white-flowered f. alba), 
458 
ssp. gigantea 
*V. x illinoensis Gleason, see named hybrids 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
