644 COMPOSITAE 
Heads in more or less dense spike-like clusters, but not compact groups 
in the axils. 
Whole: plant ‘densely hairy’ 2 ss a 5 al) ten) or ans ven neers oman 
Plant smooth or slightly downy. 
‘Basal leaves spatula-formed, stem leaves lance-shaped. 
Heads numerous, crowded. 
Stem leaves sharply toothed . . .... . bs puberula 
Stem leaves lance-shaped, Boa entire) y-ss as S. erecta 
Heads few, not crowded . . af Cages SS Purshit 
Basal leaves oblong, stem leaves very. small, linear . « S. stracta 
Tbeaves. all ‘ege-shaped “(S06 3) 6 « = «608 Us) LS ee Opne 
Leaves all lance-shaped. 
Clusters of heads crowded, numerous. 
The branches of the cluster pressed toward the main 
axis stem . . + 2 « »« SS. wligmose 
The branches of the cluster spreading « < 18 os aSespeasase 
Clusters of few heads. p 
Plant’ (to) 2 fieehieh. 2“. eo se eu, ck oe Lom oememere 
Plant et eto rth. highs 0%. 2 Mel eo Nays NS SRE 
Heads in one-sided (secund), usually large clusters. 
Plant with thick fleshy leaves, growing at sea-side . . S. sempervirens 
Leaves not fleshy. 
Leaves not 3-veined. 
Meat margins: entire: Se sos. o| « <3 (1c |slbetnmmnOMmmConaE 
Leaf margins toothed. 
Leaves broad or narrow, lance-shaped, the lower taper- 
ing to a long leaf-stalk. Whole plant rough hairy S. rugosa 
Leaves lance-shaped, rounded at base, no leaf-stalk. 
Stem haityn ci chise . ch Je. iets'ce tujos ihe 6h ite aS mI SIRE are 
Stem smooth . > « S. £ikotin 
Basal leaves oval to elliptic, tapering to a long leaf-stalk. 
Leaves rough above . . - oe 0) PS Ae 
Leaves smooth. Bye | 
Coarsely. dentate... «| «= “sss = | ‘el i) Sener 
Finely dentate . . - SS. neglecta 
Leaves all lance-shaped, clusters of few heads, and heads 
with about 3 rays . . - . - S. uniligulate 
Leaves all lance-shaped, heads" many, rays numerous, 
lower leaves toothed, upper entire . . . . . S. juncea 
As above, but all leaves toothed . . . . . . S. arguta 
Leaves 3-veined. 
Leaves lance-shaped. 
Stem smooth above . «Te» te ery Sener Onn 
Stem rough above, smooth below sw. ww et Se Cana den oEs 
ikeaves spatula-shaped ~~ ~ 5. \<; c) a se =| @ ) SemnenoeniaS 
Heads in large nearly flat clusters. 
Lower leaves broad lance-shaped, upper egg-shaped, without leaf stalks 
oe Men te | fan! cee oy eS 
se ee 8s. 6S ower 
1. §. squarrosa, Muhl. (Fig. 1, pl. 173.) Stour Raccep GoLDEN- 
rop. Stem simple, 2 to 5 ft. high. Leaves large, the upper oblong, coarsely 
toothed, tapering to moderately long leaf-stalks; the leaves inversely egg- 
shaped to oval, narrowed to. a marginal leaf-stalk. Heads numerous, in 
compact axillary clusters, each head 15- to 25-flowered, scales of the invo- 
lucre recurved. Rocky soil, our whole range. Aug.-Oct. 
2. §S. caesia, L. (Fig. 5, pl. 174.) Briur-stemmMep GoLpENROD. 
Wreati GoLpenrop. Stem 1 to 3 ft. high, smooth, round, usually bluish 
or purple, branching above. Leaves narrow lance-shaped, sharply toothed, 
tapering at each end, without leaf-stalks. Heads in short axillary clus- 
ters. Woods and thickets, throughout our range. <Aug.-Oct. 
3. §. latifolia, L. (Fig. 4, pl. 174.) Broap-tEaves Gotpenrop. Stem 
1 to 5 ft. high, usually more or less zig-zag. Leaves egg-shaped on leaf- 
stalks, tapering to a slender point at apex, sharply toothed. Heads in 
axillary clusters; rays bright yellow. Rich woods, throughout our area. 
July-Sept. 
Leaves all narrow lance-shaped or linear . 
