Solidago juncea

Aiton

Hort. Kew. 3: 213. 1789.

Common names: Early goldenrod verge d’or junciforme
IllustratedEndemic
Synonyms: Solidago arguta var. juncea (Aiton) Torrey & A. Gray Solidago arguta var. scabrella Torrey & A. Gray Solidago juncea var. neobohemica Fernald Solidago juncea var. ramosa Porter & Britton Solidago juncea var. scabrella (Torrey & A. Gray) A. Gray
Treatment appears in FNA Volume 20. Treatment on page 141. Mentioned on page 140, 142.

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. 2n = 18.


Phenology: Flowering Jul–Sep.
Habitat: Open sandy soils, disturbed areas, fields
Elevation: 0–1000+ m

Distribution

V20-295-distribution-map.gif

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.

Discussion

Several varieties of Solidago juncea have been described; they do not appear to warrant recognition, each grading into the other.

Selected References

None.

Lower Taxa

None.
... more about "Solidago juncea"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
John C. Semple +  and Rachel E. Cook +
not persisting +
decurrent +
Junceae +
compound +  and simple +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
linear-lanceolate;oblanceolate;ovate +
reduced +
8mm;11mm +
rugulose +  and muricate +
Early goldenrod +  and verge d’or junciforme +
not 2-lipped +  and actinomorphic +
yellow +  and white +
ampliate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +, narrowly obconic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
usually much larger +
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. +  and Wis. +
0–1000+ m +
resinous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open sandy soils, disturbed areas, fields +
indeterminate +
heterogamous +  and homogamous +
secund-pyramidal +
each +  and sessile +
obtuse +  and lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2mm;2.5mm +
0.2mm;0.5mm +
cauline +, proximal +  and basal +
tapering +
hairy +  and glabrous +
erect;spreading +
triangular +  and narrowly lanceolate +
serrate +  and entire +
linear-lanceolate +  and oblong or ovate +
unequal +  and rarely subequal +
2-carpellate +
persistent +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
strigillose +  and glabrous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
not persisting +
Flowering Jul–Sep. +
ovate-oblanceolate +
ascending +  and spreading-recurved +
petiolate +  and attenuate-subpetiolate +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
Illustrated +  and Endemic +
decumbent +  and ascending or erect +
appendaged +  and truncate +
papillate +  and smooth +
Solidago arguta var. juncea +, Solidago arguta var. scabrella +, Solidago juncea var. neobohemica +, Solidago juncea var. ramosa +  and Solidago juncea var. scabrella +
Solidago juncea +
Solidago subsect. Junceae +
species +
not persisting +
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
5 cm50 mm <br />0.05 m <br /> (100 cm1,000 mm <br />1 m <br />) +