Solidago altissima

Linnaeus

Sp. Pl. 2: 878. 1753.

Common names: Late goldenrod verge d’or haute
Treatment appears in FNA Volume 20. Treatment on page 153. Mentioned on page 151, 152, 156, 157.

Plants 50–200 cm; rhizomes short to long-creeping. Stems 1–40+, usually short-hairy throughout, sometimes proximally glabrescent. Leaves: basal 0; proximal cauline usually withering by flowering; sessile or subpetiolate, tapering to bases; blades oblanceolate, 95–150 × 16–20 mm, relatively thick and firm, entire to serrate along distal 1/2, strongly 3-nerved, apices acute to acuminate, abaxial faces finely strigose, more so along nerves, adaxial ± scabrous; mid to distal cauline blades oblanceolate (proximally) to lanceolate (distally), mid (30–) 45–100 (–170) × (5–) 7–16 (–25) mm, much reduced distally [(15–) 25–55 × (3–) 4.5–10 (–17) mm], margins finely serrate (teeth 0–6 (–14) per side on mid), distally usually becoming entire or remotely serrulate, adaxial faces ± scabrous, abaxial moderately strigillose, densely villoso-strigillose along nerves, distal sometimes minutely stipitate-glandular. Heads (15–) 100–1200+, secund, in secund, pyramidal, paniculiform arrays, branches divergent and recurved, sometimes ascending-divergent, sometimes merely club-shaped thyrsiform in small plants, 5–30 × 2–25 cm (often 1.5–2 times as long as wide in southern plants). Peduncles 1–3.5 mm, moderately densely short hispiduloso-strigillose, sometimes minutely stipitate-glandular; bracteoles linear, sometimes minutely stipitate-glandular. Involucres narrowly campanulate, 2.5–4.5 mm. Phyllaries in ca. 3 series, strongly unequal; outer lanceolate, acute, inner linear-lanceolate, margins rarely minutely stipitate-glandular, apices acute to obtuse. Ray-florets (5–) 8–13 (–17); laminae 0.7–1.5 (–2) × 0.1–0.4 (–0.5) mm. Disc-florets (2–) 3–6 (–9); corollas usually 2.3–3.6 mm, lobes 0.5–0.9 (–1.2) mm. Cypselae (narrowly obconic) 0.5–1.5 mm, sparsely to moderately strigillose; pappi 2.5–3.5 mm.

Distribution

V20-328-distribution-map.gif

Alta., B.C., Man., N.B., N.S., Ont., P.E.I., Que., Sask., Ala., Ariz., Ark., Calif., Colo., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Mass., Md., Mich., Minn., Miss., Mo., Mont., N.Dak., N.H., N.J., N.Mex., N.Y., Nebr., Ohio, Okla., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Va., Vt., W.Va., Wyo., Mexico, worldwide

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Involucres usually 3–4 mm; Arizona, California, and Utah, edge of Great plains eastward through e United States, northward in Canada to Nova Scotia and w to Saskatchewan, n of prairies Solidago altissima subsp. altissima
1 Involucres usually 2–3 mm; Great plains e toIllinois Solidago altissima subsp. gilvocanescens
... more about "Solidago altissima"
villoso-strigillose +  and strigillose +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
secund +, leafy +  and thyrsiform-paniculiform +
indeterminate +  and determinate +
cone--shaped +
John C. Semple +  and Rachel E. Cook +
Linnaeus +
not persisting +
decurrent +
Triplinerviae +
9.5 cm95 mm <br />0.095 m <br /> (15 cm150 mm <br />0.15 m <br />) +
oblanceolate +
thick;16mm;20mm +
rugulose +  and muricate +
stipitate-glandular +
ascending-divergent +  and divergent +
5cm +  and 30cm +
club--shaped +
2cm +  and 25cm +
10 cm100 mm <br />0.1 m <br /> (17 cm170 mm <br />0.17 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (10 cm100 mm <br />0.1 m <br />) +
oblanceolate +  and lanceolate +
Late goldenrod +  and verge d’or haute +
not 2-lipped +  and actinomorphic +
yellow +  and white +
ampliate +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +, narrowly obconic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
stipitate-glandular +
Alta. +, B.C. +, Man. +, N.B. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Ala. +, Ariz. +, Ark. +, Calif. +, Colo. +, Conn. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Mass. +, Md. +, Mich. +, Minn. +, Miss. +, Mo. +, Mont. +, N.Dak. +, N.H. +, N.J. +, N.Mex. +, N.Y. +, Nebr. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Utah +, Va. +, Vt. +, W.Va. +, Wyo. +, Mexico +  and worldwide +
resinous +
stipitate-glandular +, puberulent +, pilose +, glabrous +, glabrous or +  and sparsely densely scabrous strigillose or villous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
linear-lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
0.7mm;1.5mm +
0.1mm;0.4mm +
subpetiolate +  and sessile +
tapering +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
erect;spreading +
triangular +  and narrowly lanceolate +
stipitate-glandular +
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 />) +
stipitate-glandular +  and hispiduloso-strigillose +
0.1 cm1 mm <br />0.001 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
not persisting +
stipitate-glandular +
ovate-oblanceolate +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
decumbent +  and ascending or erect +
1 +  and 40 +
appendaged +  and truncate +
papillate +  and smooth +
Altissimae +, Solidago subg. Brachyactis +, Solidago (sect. Undefined) ser. Paniculatae +, Serotinae +, Solidago subg. Triactis +  and Solidago (sect. Undefined) ser. Trinerves +
Solidago altissima +
Solidago subsect. Triplinerviae +
species +
serrulate +  and entire +
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 />) +