/® Bracts herbaceous, not thin and panery 
ce @ oInvolucral bracts overlavving in 2-6 series 
P2tleaves truncate P| Suocordate at the base; 
26tlowers waitish or violet 
£4 flowers violet; pappus in © series, 
2g the outer consisting of short 
“\bristles, the inner soft and rlumose 
24 Flowers greenish or yellowish white; 
yg Saussurea 
2gparpus in a sinsle series, not plumose #. Brickellia 
g2Leaves narvowed ai the bas 
COlInvolucral bracts but little overlapping, 
Tt Geta bat in @ single seri or in & 
\dissimiiar series 
/B Bracts papery, commonly orague white, less 
“2 often rose-color 
2oFlants dioecious, the staminate flowers 
having smoota pappus bristles which are 
usually more or less enlarged toward the 
apex, the pistillate flowers hair-like, 
uv naving pappus bristles which are barbed 
ana united at the base; usually small 
herbs 0-60 cm. tall, their stem leaves 
mucn reduced; flowers whitish or tinged 
ere5 Fh + 
Wilbthn rose 
AV 
D> 
HZ oenecio 
—— 
aI. Antennaria 
—_—_—__ 
ip) 
Zo 
ants partly dioecious, the staminate heads 
having, only staminate flowers, the pistillate 
neads havins chiefly cistillate flowers with 
ri. 
af: few staminate ones in the middle; flowers 
yellow, the pappus neither smooth or dilated, ; 
each bristle distinct; herbs 40-80 ecm. tally Anarhalis 
_—_— 
~OPlants with all flowers fertile, those near 
the marzin pistillate only, those at the 
<4 center perfect; usually erect leary plants, 
one diminutiv 
/4 3) lappus none or consistins of an incons;icuous 
/9 ridge or crown 
5-10 cm. broad at the base 
: : 
x r 1 4}, 5 
aenseiy wool veneath; acnenes 4-6, beset 
+1 ae en se Ts = £7 } a 
20 { with stalke. -;lands, at length spreadins 
| Line sroxes in a wneel 
)4. Gaarhaliun 
—_—_r 
}§. aG@enocaulon 
a eS eT 
