Solidago curtisii

Torrey & A. Gray

Fl. N. Amer. 2: 200. 1842.

Common names: Curtis’ goldenrod
Endemic
Synonyms: Solidago ambigua var. curtisii (Torrey & A. Gray) Alph. Wood Solidago caesia var. curtisii (Torrey & A. Gray) C. E. S. Taylor & R. J. Taylor
Treatment appears in FNA Volume 20. Treatment on page 126. Mentioned on page 127.

Plants (20–) 40–90 (–100) cm; caudices woody. Stems 1–4, erect, straight, glabrous or moderately hirtello-strigose. Leaves: basal withering by flowering; proximal to mid cauline weakly petiolate or sessile, blades lanceolate to elliptic, (36–) 95–150 (–180) × (10–) 19–43 (–60) mm, margins serrate (with (3–) 8–20 (–36) teeth), faces glabrous or sparsely hairy, more so along nerves; distal cauline sessile, blades narrowly lanceolate to narrowly elliptic, (5–) 37–90 (–130) × (3.5) 5–18 (–34) mm, margins entire to sparsely serrate (0–9 (–14) teeth), faces glabrous or sparsely hairy, sometimes more pilose along nerves. Heads 20–800 in short axillary and terminal racemiform/paniculiform, non-secund arrays (2–) 8.5–38.5 (–65) cm. Peduncles 2–6 mm, moderately to densely finely strigose; bracteoles 0–3, linear-oblong. Involucres narrowly campanulate, (5–) 5.6–7 (–8) mm. Phyllaries in 3–4 series, strongly unequal, outermost 1–1.4 (–2) mm, innermost (2.5–) 3–4 (–4.4) mm, obtuse to acute, 1-nerved. Ray-florets 2–4 (–6); laminae (2–) 2.5–4 (–4.6) × 1–2 mm. Disc-florets 3–7 (–9); corollas mostly 2–3 mm, lobes 1–1.7 (–2.4) mm. Cypselae 1–2 (–3) mm, sparsely to moderately strigose; pappi (2–) 2.7–3.6 (–4.5) mm.

Distribution

V20-255-distribution-map.gif

Ala., Ga., Ky., Miss., N.C., S.C., Tenn., Va., W.Va.

Discussion

Varieties 2 (2 in the flora).

Solidago curtisii is similar to S. caesia and may be confused with robust, pressed and dried specimens of the latter if they are mounted such that the arching habit cannot be observed.

Selected References

None.

Key

1 Proximal midcauline leaf blades broadly lanceolateand sparsely hairy Solidago curtisii var. curtisii
1 Proximal midcauline leaf blades elliptic and moderately hairy 22b. Solidago curtisii var. flaccidifolia > 1
... more about "Solidago curtisii"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
secund +, corymbo-paniculiform +, paniculiform +  and racemiform +
indeterminate +  and determinate +
John C. Semple +  and Rachel E. Cook +
Torrey & A. Gray +
not persisting +
decurrent +
Solidago sect. Glomeruliflorae +
compound +  and simple +
9 cm90 mm <br />0.09 m <br /> (13 cm130 mm <br />0.13 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
3.7 cm37 mm <br />0.037 m <br /> (9 cm90 mm <br />0.09 m <br />) +
narrowly lanceolate;narrowly elliptic +
5mm;18mm +
rugulose +  and muricate +
linear-oblong +
Curtis’ goldenrod +
not 2-lipped +  and actinomorphic +
yellow +  and white +
ampliate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
compressed +, narrowly obconic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Ala. +, Ga. +, Ky. +, Miss. +, N.C. +, S.C. +, Tenn. +, Va. +  and W.Va. +
resinous +
pilose +, hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
non-secund +  and paniculiform +
38.5 cm385 mm <br />0.385 m <br /> (65 cm650 mm <br />0.65 m <br />) +
indeterminate +
not nodding +
heterogamous +  and homogamous +
8.5 cm85 mm <br />0.085 m <br /> (38.5 cm385 mm <br />0.385 m <br />) +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.44 cm4.4 mm <br />0.0044 m <br />) +
obtuse +  and acute +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
0.56 cm5.6 mm <br />0.0056 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
2.5mm;4mm +
sessile +  and petiolate +
cauline +, proximal +  and mid +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
erect;spreading +
triangular +  and narrowly lanceolate +
entire +  and sparsely serrate +
linear-lanceolate +  and oblong or ovate +
unequal +  and rarely subequal +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
2-carpellate +
0.36 cm3.6 mm <br />0.0036 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
persistent +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
not persisting +
not stipitate-glandular +
ovate-oblanceolate +
Fl. N. Amer. +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
straight +
1 +  and 4 +
appendaged +  and truncate +
papillate +  and smooth +
Solidago ambigua var. curtisii +  and Solidago caesia var. curtisii +
Solidago curtisii +
Solidago subsect. Glomeruliflorae +
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 />) +