2. Ae Lyallii S. Wats. > dead STE Rplewine nia nwdblan : 
Cap Eootstocks 5-8 cme lons, tho stems 1-2 m. tall, glabrous and glaucous; leaves : 
3-4, the blades broadly triangular in ouSline, 15-35 em. long, ternate, then 
once or twice pinnate, glabrous throughout, the leaflets 4-8 cm. long, ovate 
to lanceolate, frequently lobed near the base,on stalks 5-12 mm. long or sessile, 
the margins serrate, the teeth ovate, 2-3 mms long, spinulose-tipped, the petioles 
of the upper leaves strongly dilated throughout, those of the. lower only at the 
DASC) ChOwere—m 
terminal largest, vhe mature rays o-1 
bexn cme long, the pedicels 3-6 mn. long 
bractlets of the involucels subulate or lanceolate, inconspicuous, few or wanting; 
corolla white, the clusters globose, vhe calyx teeth wanting, the ovary glabrous; 
fruit 6-9 mm. long, the lateral ribs strongly winged, che wing half the width 
of the body or more, the dorsal ribs corky, oil tubes commonly solitary in the 
intervals, 2-4 on the inner face. 
Frequent throughout our range in meadows and along moist trails or open 
streams, usually in the white pine type. 
