MK Solidago L. Goldenrod 
Zrect perennial leafy herbs with horizontal rootstocks and alternate 
Crowded leaves. Heads usually numerous, small, their involucres formed 
of 5-4 series of unequal erect narrowly lanceolate Chaffy bracts, the 
receptacle convex, naked or minutely pubescent. Ray-flowers pistillate, 
their corollas yellow, the limbs narrowly oval or @lliptical; disc-flowers 
yellow. Achenes cylindrical, Slightly narrowed at both ends, usually 
S-ribbed, hispid or hirtellous. 
Oo Low perennials, the stems 5-25 am tall, the heads 
4usually less than 20 J, Ss ciliosa 
_— 
o srect perennials with virgate stems 30-120 em. tall 
2 Panicles loose, formed of several corymbose Clusters; 
/ @ achenes hispid with stiff hairs; receptacle 
(pubescent a, Ss occidentalis 
2, Fanicles dense, rhombic, ovoid or pyramidal, the flow- 
@ers crowded alone the branches 
4 Stem leaves mostly 1-1.5 cm. broad, sharply 
& serrulate 
qt 6 Branches of the panicle Strictly ascending 2. Se elongata 
é, Branches of the panicle recurving and | 
fo drooping “% Se serotina 
4 Stem leaves quickly diminished, 1.5-5 cm. 
@ long, <-6 ma. broad, entire or nearly so oP nissouriensis 
Om Je Ciliosa Greene. ? Low perennials with horizontal roots tocks, 
the stems solitary, ascending, 5-<5 cm. tall, sparingly pubescent; basal leaves 
Spatulate or obovate, the earliest 4-5 mm. long, the later ones 2-3 cm lons, 
8-12 ma. wide, all more or less dentate, ; i ; the lower 
cauline leaves mostiy oblanceolate, obtuse, usually entire, the upper narrowly 
elliptical, sessile, much reduced, acute, all prominently net-veined, ciliate 
On whe marcins at least in the lower half and on the petioles; heads ina 
usually dense or sometimes somewhat loose panicle or raceme 2-8 cm. long, 
depending upon the vigor of the plant, the Vranches e—eh—ael smarinely 
glandular; heads rarely more than £05 +e involucral bracts 2.5-5 mm. long, 
Oblong-lanceolate, acute, tne midveins prominent; ray-flowers about 15, their 
corollas 5 mae lons; achenes 2 mm. lons, S-ribbed, sparingly hirtellous. 
In rocky but moist places at high elevations. 
-. 
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