Solidago missouriensis

Nuttall

J. Acad. Nat. Sci. Philadelphia 7: 32. 1834.

Common names: Missouri goldenrod
Synonyms: Aster marshallii (Rothrock) Kuntze Aster missouriensis (Nuttall) Kuntze Aster tolmieanus (A. Gray) Kuntze Doria concinna (A. Nelson) Lunell Doria glaberrima (M. Martens) Lunell Doria glaberrima var. montana (A. Gray) Lunell Solidago concinna Greene Solidago duriuscula M. Martens Solidago glaberrima Rydberg Solidago glaberrima var. montana (A. Gray) Lunell Solidago glaberrima var. moritura (E. S. Steele) E. J. Palmer & Steyermark Solidago glaucophylla E. S. Steele Solidago hapemaniana Wooton & Standley Solidago marshallii A. Gray Solidago missouriensis var. extraria A. Gray Solidago missouriensis var. fasciculata Holzinger Solidago missouriensis var. glaberrima (M. Martens) Rosendahl & Cronquist Solidago missouriensis var. montana A. Gray Solidago missouriensis var. tenuissima (Wooton & Standley) C. E. S. Taylor & R. J. Taylor Solidago missouriensis var. tolmieana (A. Gray) Cronquist Solidago moritura Solidago tenuissima Solidago tolmieana
Treatment appears in FNA Volume 20. Treatment on page 142. Mentioned on page 140.

Plants (10–) 30–80 cm; rhizomes short to long. Stems 1–50+, erect, glabrous or sometimes sparsely strigose in arrays; fascicles of small lateral branch leaves often present in axils. Leaves: proximal cauline tapering to long, winged petioles, blades oblanceolate to linear-oblanceolate, 50–100 (–200) (including petiole) × (5–) 10–20 (–30) mm, margins entire to serrulate, usually 3-nerved (2 larger lateral nerves), apices acute, mucronate to acuminate and somewhat spinulose, glabrous; mid to distal cauline sessile, blades lanceolate to linear, 40–60 × (2–) 4–14 mm, rapidly reduced distally, margins entire, ciliate, faces glabrous. Heads 10–210 in paniculiform arrays, broadly secund-pyramidal or more rhombic to transversely rhombic, (1.5–) 3–12 (–20) × (1.5–) 3–12 cm; branches glabrous with secund heads spreading and arching, sometimes ascending with non-secund heads. Peduncles 1.4–5 mm, glabrous or sparsely strigose; bracteoles 0–3+, linear to lanceolate. Involucres narrowly to broadly campanulate, 2.5–4.5 mm. Phyllaries in 3–4 series, strongly unequal, margins ciliate-fimbriate, especially apically; outer ovate to lanceolate, acute to rounded, inner linear-ovate to oblong or linear-lanceolate, obtuse to rounded. Ray-florets 5–14; laminae 1.5–2 (–4) × 0.2–0.5 (–0.75) mm. Disc-florets (6–) 8–20; corollas (2–) 3–4 mm, lobes 0.4–1 mm. Cypselae (obconic) 1–2 mm, glabrous or sparsely strigose; pappi 2.5–3 mm. 2n = 18, 36.


Phenology: Flowering (Jul–)Aug–Oct.
Habitat: Open sandy and rocky soils, clay soils, prairies, grasslands, pastures, open conifers forests in foothills and proximal elevations of mountains, sandstone ledges, limestone glades, disturbed soils, roadsides
Elevation: 200–2200+ m

Distribution

V20-298-distribution-map.gif

Alta., B.C., Man., Ont., Sask., Ariz., Ark., Colo., Idaho, Ill., Ind., Kans., Ky., Mich., Minn., Mo., Mont., Nebr., Nev., N.Mex., N.Dak., Okla., Oreg., S.Dak., Tenn., Tex., Utah, Wash., Wyo., Mexico (Coahuila)

Discussion

Solidago missouriensis was often introduced along railroad lines farther east. It is a highly variable species. In the east, it can be similar to S. juncea and is not always easily distinguished where ranges overlap. In the west, it can similar to smaller plants of S. spectabilis. It is distinguished from the related species by its usually 3-nerved proximal leaves and the usually thin, elongate rhizomes. Across the prairies the species is known to be diploid only (2n = 18). In the Rocky Mountains, tetraploids (2n = 36) are common, the diploids infrequent.

A number of varieties have been described. Shorter, often larger-headed plants (tetraploids when known) from the Rocky Mountains have been treated as var. missouriensis (including var. extraria). Taller, more leafy-stemmed plants, mostly from the eastern half of the range, but occasionally west to Washington, have been treated as var. fasciculata. Plants from Arizona, Colorado, and New Mexico with long, linear leaves have been treated as var. tenuissima. Larger-headed plants with narrow bracts from prairies west of the Cascades in Oregon and Washington have been treated as var. tolmieana. A. Cronquist (1994) opted not to recognize varieties, noting that all appeared to grade continuously into each other. A detailed study of the species is needed.

Selected References

None.

Lower Taxa

None.
... more about "Solidago missouriensis"
not tailed +, rounded +  and obtuse +
distinct +
entire to serrulate +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
John C. Semple +  and Rachel E. Cook +
Nuttall +
not persisting +
decurrent +
Junceae +
compound +  and simple +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
lanceolate;linear +
reduced +
4mm;14mm +
rugulose +  and muricate +
linear +  and lanceolate +
ascending;arching +
Missouri goldenrod +
not 2-lipped +  and actinomorphic +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
yellow +  and white +
ampliate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
strigose +  and glabrous +
compressed +, narrowly obconic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
usually much larger +
Alta. +, B.C. +, Man. +, Ont. +, Sask. +, Ariz. +, Ark. +, Colo. +, Idaho +, Ill. +, Ind. +, Kans. +, Ky. +, Mich. +, Minn. +, Mo. +, Mont. +, Nebr. +, Nev. +, N.Mex. +, N.Dak. +, Okla. +, Oreg. +, S.Dak. +, Tenn. +, Tex. +, Utah +, Wash. +, Wyo. +  and Mexico (Coahuila) +
200–2200+ m +
resinous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open sandy and rocky soils, clay soils, prairies, grasslands, pastures, open conifers forests in foothills and proximal elevations of mountains, sandstone ledges, limestone glades, disturbed soils, roadsides +
non-secund +  and secund +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
indeterminate +
3 cm30 mm <br />0.03 m <br /> (12 cm120 mm <br />0.12 m <br />) +
heterogamous +  and homogamous +
rhombic +  and transversely rhombic +
3 cm30 mm <br />0.03 m <br /> (12 cm120 mm <br />0.12 m <br />) +
each +  and sessile +
linear-ovate +  and oblong or linear-lanceolate obtuse +
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 />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.075 cm0.75 mm <br />7.5e-4 m <br />) +
1.5mm;2mm +
0.2mm;0.5mm +
erect;spreading +
triangular +  and narrowly lanceolate +
entire +  and spinulose +
ciliate-fimbriate +, mucronate +  and acuminate +
linear-lanceolate +  and oblong or ovate +
unequal +  and rarely subequal +
2-carpellate +
persistent +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
strigose +  and glabrous +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not persisting +
Flowering (Jul–)Aug–Oct. +
ovate-oblanceolate +
ascending +  and spreading +
petiolate +  and attenuate-subpetiolate +
J. Acad. Nat. Sci. Philadelphia +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
1 +  and 50 +
appendaged +  and truncate +
papillate +  and smooth +
Aster marshallii +, Aster missouriensis +, Aster tolmieanus +, Doria concinna +, Doria glaberrima +, Doria glaberrima var. montana +, Solidago concinna +, Solidago duriuscula +, Solidago glaberrima +, Solidago glaberrima var. montana +, Solidago glaberrima var. moritura +, Solidago glaucophylla +, Solidago hapemaniana +, Solidago marshallii +, Solidago missouriensis var. extraria +, Solidago missouriensis var. fasciculata +, Solidago missouriensis var. glaberrima +, Solidago missouriensis var. montana +, Solidago missouriensis var. tenuissima +, Solidago missouriensis var. tolmieana +, Solidago moritura +, Solidago tenuissima +  and Solidago tolmieana +
Solidago missouriensis +
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 />) +