Solidago sciaphila

E. S. Steele

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

Common names: Shadowy goldenrod
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


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

Selected References


Lower Taxa


... more about "Solidago sciaphila"
John C. Semple +  and Rachel E. Cook +
E. S. Steele +
Shadowy goldenrod +
Ill. +, Iowa +, Minn. +  and Wis. +
200–400 m +
Sandstone and limestone bluffs and ledges along Mississippi River +
Flowering Aug–Sep. +
Contr. U.S. Natl. Herb. +
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 +