33. Aanthium (Tourn. )L. Cocklebur. 
e@ jtaminate flowers in crowded 
globose ciusters arranced in terminal racemes, their involucral bracts in 
l-- series, the receptacie chaffy. tistillate + owers subsessile, crowded 
in the upper axils, t15 involucres completely closed at maturity forming 
burfs, tipped by 2-3 rigid beaks densely armed with stiff Srines; achenes 
J 
"4 
= tine: 4 raises > 
La B c 
. F, ro. 
LOA Coe 
oviforme Walir, 
1 ie > Weedy annuals 50-80 cm. tall » With 
rough stems; leaves 5-8 om. lon:,, broadly ovate or deltoia~obate, subcordate, 
obtuse, the marsin irregularly Crenate-serrate, or shallowly lobed, botn surfaces 
rough with stout short hairs, borne on petioles 5-8 cm, lous; staminate Lina 
borne in glotose sessile clusters crowded in stems terminal racemes £.% J 
r 
long; involucral bracts 2-3 m:. long, lanceolate, nispid, unequal, in a single 
sl @ 
series; burs Oval, &-5 cm. long, subsessile in the upper axils, the Spines nue “OUs , 
e405 te long, slender, lichtl- hooked at the avex, glandular and hispid below 
the middle. 
Gn the seedling stage) 
said to be voisonous to stock but 
An occasional weed in wasts places; 
in ae 
: S 
> ; fran ant jn iW’ rei0on to he s eariniie Paatpan 
(Werle) inirequent 1 Our Tesl10n to be a SseLr1ious ee 
| eee 
sandpoint, kh 
eT Eee ee a See Eee tae 
at GER Un ae tard lager iN lel 
