Solidago sempervirens
Solidago patula
seaside goldenrod, verge d'or toujours verte
rough-leaf goldenrod, roundleaf goldenrod, swamp goldenrod
1–10(–20+), erect or ascending, glabrous throughout or hairy in arrays.
1–3+, erect (angular in cross section, sometimes winged on angles), glabrous or sparsely hairy in arrays.
rosettes present at flowering;
basal and proximal cauline tapering to long, winged petioles sheathing stems or nearly so, blades narrowly ovate to oblanceolate, 100–400 × 10–60 mm, thick or fleshy, entire, acute, glabrous;
mid to distal cauline usually numerous, sessile, blades lanceolate, 40–60 × 5–10 mm, reduced distally, thick or fleshy, bases sometimes subclasping, margins entire.
basal and proximal cauline abruptly narrowed to long, winged petioles, blades broadly ovate, 100–300 × 40–100 mm, relatively thick, margins serrate, apices acute, abaxially glabrous, adaxially scabrous;
distal cauline sessile, blades lanceolate, 50–80 × 15–20 mm, gradually reduced distally, subentire.
2–3 mm, glabrous or sparsely hairy.
1–4 mm, sparsely hispido-strigose, bracteoles 2–5, lanceolate, grading into phyllaries distally.
3–7 mm.
3–4.5 mm.
8–17;
laminae 5–6.2 × 0.4–0.6 mm.
5–12;
laminae 1.5–1.7 × 0.5 mm.
10–22;
corollas 3–3.2 mm, lobes 0.5–1.2 mm.
5–15;
corollas 2.8–3 mm, lobes 0.6–1.5 mm.
in 3–4 series, unequal, lanceolate, margins ciliate, apices acute.
(10–12) in 3–4 series, ovate to linear-ovate, unequal, obtuse.
20–500, secund, in paniculiform arrays, secund-pyramidal to broadly club-shaped, sometimes leafy proximally, at least proximal branches spreading-recurved, branches and peduncles bracteolate, bracteoles reduced distally.
25–200, secund, in open, lax, secund, pyramidal, paniculiform arrays, branches ascending to recurved, often elongate with recurved ends.
(obconic) 1.1–1.5 mm, moderately strigose;
pappi 3.8–4 mm (slightly clavate).
(sometimes mottled) 1.5–2 mm, strigillose;
pappi 2–3 mm.
Solidago sempervirens
Solidago patula
Subspecies 2 (2 in the flora).
Solidago sempervirens is common along the seacoast from the Gulf of St. Lawrence to central America and the northern West Indies. Introduced populations are sometimes very large near the Detroit River and Lake Erie in southwestern Ontario, eastern Michigan, and adjacent Ohio. A second disjunct group of populations occurs in Illinois and Indiana in the Chicago area at the southern end of Lake Michigan. Two mostly geographically separate subspecies can be recognized in the flora range. A race also occurs in the Azores and is undoubtedly introduced there [Solidago sempervirens var. azorica (Hochstetter ex Seubert) H. St. John]. Plants cultivated in European gardens have been labeled S. sempervirens var. viminea (Aiton) A. Gray.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies 2 (2 in the flora).
Solidago patula is readily recognized by the angled stem and the sharkskin-like texture of the adaxial surface of the leaves.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Involucres 4–7 mm, rays 12–17, disc florets ca. 17–22; Newfoundland to New Jersey, locally to Virginia | subsp. sempervirens |
1. Involucres 3–4 mm, rays 7–11, disc florets ca. 10–16; Massachusetts to Texas and southward | subsp. mexicana |
1. Plants relatively robust, proximal leaves large, 80–300 × 40–100 mm, sharply serrate; distal leaves relatively few, gradually reduced distally, serrate; n and s in mountains, to Alabama, Mississippi,Georgia | subsp. patula |
1. Plants more slender and small-leaved, proximal leaves narrower, 50–60 mm wide; distal leaves numerous, much reduced to bracts in array, usually finely serrate to entire; mostly coastal plain and adjacent piedmont | subsp. strictula |
Go Botany
IL Wildflowers
LA Plants
MD Biodiversity
MI Flora
WildflowerSearch
iNaturalist
USDA Plants Database
MO Plants
