®@ fL. Pe alpinum Allioni. Rootstocks elongated; stems 80-120 om. tall or 
more, stout, glaucous, hollow, glabrous, commonly branching; leaves 10-20 cm, 
long, déminished-above'> lanceolate, acute or lightly acuminate, narrowed at ‘the 
base, glabrous, bright green, petioles 1-2 cm. long; ocreae .5-2 cm. long, 
obliquely funnelform, 2-lobed, brittle and soon falling away; flowers r 
in a terminal panicle 15-20 cme long, i perianth 
whitish 2.5-5 mm. long, 5-cleft to near the base, the segments oblong-obovate, 
very obtuse; stamens 6-8, shorter than the segments} style 3-parted nearly to the 
base, less than 1 mm. long; achene Oval, 5-6 mms long, strongly 3-ang] ed, a rich 
br h Olished. 
Moist alpine slopes and meadows, above 5000 feet; not seen in the Kootenai or 
Priest xiver drainages; frequently forms communities of some extent, being an 
early entrant on talus slopes, where it is often associated with Xero t R 
= Mee < e 
ur P. bistortoides Pursh. Rootstocks stout, contorted, branching, | 
—:1-2.5 cme in diameter, flesk-coloved—wittip, stems 40-120 cm. tall, glabrous; 
basal leaves oblong-lanceolate, acute, the blades 15-25 om. long, 558 gm. 
brogd , <dilmem, Geebe-rounded at the base or even subhastate, 
webutate, borne on stout petioles 8-30 cm. long, upper surface glabrous, the | 
lower hirtellous or glabrous, paler, cauline leaves sessile and clasping, very : 
acute, the ocreae sheathing the stem for 5-6 centimeters, the summit entire; q 
x flowers paper white, rarely somewhat tinged with pink, in a dense cylindrical 
Ww spike <-5 cme long, about 1.5 cm. wide, bracts lanceolate, 4-6 mm long, 
_ acuminate; calyx 4-5.5 mm. long, 5-cleft nearly to the base, the segments 
broadly ovate or ovate-elliptical, obtuse: stamens 8, somewhat longer than the 
segments, the anthers white or srey; styles parted nearly to the base achene 
4 mme long, smooth and shining. 
\ In meadows and moist ground at lower elevations 3 odorous en masse but 
hardly fragrant; abundant locally. Quemash Flats (Weippe prairies) M. Lewis 
NS 
(type); Nez Perces; Moscows Prinecton, Emerald Cr.; Boville; Harvard, 
var, linearifolium (S. ‘iats.) Small. Similar but smaller, 15-40 cm, tall, 
the leaves linear-lanceolate, 10-15 cm, long, 1-2 cm, broad; spikes 1-2 CM. 
long, —=tommon in subalnine meadows, 
\Y 
