42.
Solidago juncea
Aiton, Hort. Kew. 3: 213. 1789.
Early goldenrod , verge d'or junciforme
Solidago arguta
Aiton var.
juncea
(Aiton) Torrey & A. Gray;
S. arguta
var.
scabrella
Torrey & A. Gray;
S. juncea
var.
neobohemica
Fernald
; S. juncea
var.
ramosa
Porter & Britton
; S. juncea
var.
scabrella
(Torrey & A. Gray) A. Gray
Plants
30—120 cm; caudices branching, sometimes with elongate rhizomes forming new rosettes.
Stems
1—10+ , erect, glabrous, sometimes sparsely hairy in arrays; usually with fascicles of small leaves in axils of distal leaves.
Leaves:
basal and proximal cauline tapering gradually to winged petioles, blades oblanceolate to ovate, 100—300 × 20—70 mm, usually multiple lateral nerves pronounced, margins sharply serrate, ciliate, faces glabrous; mid to distal cauline sessile, blades linear-lanceolate, 30—50 × 8—11 mm, reduced distally, margins entire or finely serrate.
Heads
60—450 , secund, in paniculiform arrays, openly secund-pyramidal with proximal branches spreading-recurved, or as broad as long with proximal branches widely ascending, recurved (elm-tree shaped).
Peduncles
1.5—6 mm, glabrous or sparsely strigillose; bracteoles 0—2, linear.
Involucres
narrowly campanulate, 3—4 mm.
Phyllaries
in 3—4 series, strongly unequal, outer ovate, acute, inner lanceolate, obtuse.
Ray florets
7—12; laminae 2—2.5 × 0.2—0.5 mm.
Disc florets
8—15; corollas 2.5—3 mm, lobes 0.5—0.8 mm.
Cypselae
0.9—1.5 mm, sparsely strigose;
pappi
2.5—3.5 mm.
2
n
= 18.
Flowering Jul—Sep. Open sandy soils, disturbed areas, fields; 0—1000+ m; Man., N.B., N.S., Ont., P.E.I., Que.; Ala., Ark., Conn., Del., Ga., Ill., Ind., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.
Several varieties of
Solidago juncea
have been described; they do not appear to warrant recognition, each grading into the other.
