Solidago sciaphila

E. S. Steele

Contr. U.S. Natl. Herb. 13: 371. 1911.

Common names: Shadowy goldenrod
Endemic
Treatment appears in FNA Volume 20. Treatment on page 125. Mentioned on page 119, 123.

Plants 20–70 (–100) cm; caudices thick, woody. Stems single (sometimes purplish brown, ridged), glabrous, strigose distally in arrays. Leaves: basal and proximal tapering to winged petioles, blades (basal) spatulate, 20–40 mm, (proximal) obovate to oblanceolate or elliptic, 60–150 (–200) × 30–55 mm, margins serrate (teeth shallow to 5 mm), ciliate, acute to obtuse, acuminate or mucronate, faces abaxially glabrate to sparsely strigose, especially on nerves, adaxially glabrous; mid and distal cauline sessile, lancelate or oblanceolate to elliptic, 30–100 × 20–40 mm, reduced distally, margins serrate to entire distally. Heads 20–180+ (1–6 per branch), in leafy wand-paniculiform arrays (2–) 10–20 (–40) cm, lateral branches usually not exceeding subtending leaf bracts. Peduncles 1–3 mm, strigose; bracts and bracteoles lanceolate to ovate, grading into phyllaries. Involucres campanulate, ca. 5 mm. Phyllaries in 3–4 series, appressed, strongly unequal, outer grading from ovate bracteoles, mid oblong, rounded, inner linear-oblong, acute, glabrous. Ray-florets ca. 6–10; laminae 1.5–2.5 × 0.5 mm. Disc-florets ca. 10; corollas 3.5–5 mm, lobes 1–1.5 mm. Cypselae (narrowly obconic) 2.5–3 mm, moderately strigillose; pappi ca. 4 mm (sometimes weakly clavate). 2n = 36.


Phenology: Flowering Aug–Sep.
Habitat: Sandstone and limestone bluffs and ledges along Mississippi River
Elevation: 200–400 m

Discussion

Solidago sciaphila is similar to S. speciosa, but the proximal leaves are obviously serrate.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Solidago sciaphila"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
thyrsiform-paniculiform +
indeterminate +  and determinate +
wand +  and club-shaped +
John C. Semple +  and Rachel E. Cook +
E. S. Steele +
not persisting +
decurrent +
compound +  and simple +
15 cm150 mm <br />0.15 m <br /> (20 cm200 mm <br />0.2 m <br />) +
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
obovate;oblanceolate or elliptic +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
30mm;55mm +
rugulose +  and muricate +
lanceolate +  and ovate +
ovate +  and lanceolate +
Shadowy goldenrod +
not 2-lipped +  and actinomorphic +
yellow +  and white +
ampliate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +, narrowly obconic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Ill. +, Iowa +, Minn. +  and Wis. +
200–400 m +
resinous +
glabrous +, abaxially glabrate +  and sparsely strigose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandstone and limestone bluffs and ledges along Mississippi River +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
acute +  and linear-oblong +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
5 cm50 mm <br />0.05 m <br /> (?) +
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.5mm;2.5mm +
30mm;100mm +
cauline +, mid +, proximal +  and basal +
oblanceolate;elliptic +
reduced +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
erect;spreading +
triangular +  and narrowly lanceolate +
serrate +  and entire +
acute +  and obtuse acuminate or mucronate +
rounded +  and oblong +
linear-lanceolate +  and oblong or ovate +
unequal +  and rarely subequal +
2-carpellate +
persistent +
4 cm40 mm <br />0.04 m <br /> (?) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not persisting +
Flowering Aug–Sep. +
stipitate-glandular +
ovate-oblanceolate +
Contr. U.S. Natl. Herb. +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
decumbent +  and ascending or erect +
appendaged +  and truncate +
papillate +  and smooth +
Undefined subsect. Actipsis +, Leioligo subg. Lininque +, Solidago subg. Albigula +, Bicolores +, Solidago sect. Chrysastrum +, Solidago subg. Chrysastrum +, Solidago sect. Erectae +, Solidago (sect. Undefined) ser. Erectae +, Hispidae +, Solidago (sect. Undefined) ser. Integrifoliae +, Speciosae +, Solidago (sect. Undefined) ser. Squarrosae +  and Squarrosae +
Solidago sciaphila +
Solidago subsect. Squarrosae +
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 />) +