3 
lle tiersclewm L, Cow Parsnip, i 
Qurs coarse stout nerennials with thick horizontal rootstocks,. Leaves 
very large, ternate, the leaflets broad, moro or less incised, the petioles | 
strongly infloted and Sheathing, Flowers white in lerre shovry compound 
. 
umbels, subtended by on herbaceous deciduous involucre and involucels of 
numerous suall bractlets, Petals unesual, those of the outermost umbels 
ay 
léerger than the imor, Calvx+teeth nearly or quite wentinge Fruits broadly 
oval or obovate, stronzly flattened yarellel to the commissure, the latcral 
ribs narrowly winged, she dorsel ribs not orominent,. Oil tubes solitery in the 
ry 
yo]? 
WG a 
t 
oa) 
intervals, about -S lon= as the carnels, 2-4 on the commissural Paces 
t 
, aed 
1, ... loanatum Michx. Commonly as - all as | man or nore. the stems hisrid 
: - : ww sf 
with soreadcing hairs: leaflets 15-%5 em, in dismeter, cordate at the bese, 
irregulerly and oblicuely lobed, the middle leaflets clearly cut to the 
middle into three primary segments, the lobes ovete, lichtly acuminate, shernly 
serroce, the lower surface thinly woolly; umbels 20-50 cm, in diancter, 2 
de 
Ylatetopved at maturity, ymaory rays v-l5 om, longs, woolly, the »edicels 1-2 
em, longs; petals bifid; fruits 5-12 mm, long, S-& mai. broad, cubescent, 
iabsniites 
srecuent in bogey neadows and river bostoms at lov elevations groving 
usuelly in rank thickets tost to & varied and extensive assemblaze of 
insect visitors. Uvner Pricst Hey SOOO Ste, online 8635. 
