Solidago sempervirens
Solidago wrightii
seaside goldenrod, verge d'or toujours verte
Wright's goldenrod
1–10(–20+), erect or ascending, glabrous throughout or hairy in arrays.
1–30+, simple, sparsely to densely puberulent proximally to densely so 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 winged-petiolate-subpetiolate (poorly differentiated), blades to winged petioles;
blades oblanceolate, largest to 8 cm, usually smaller, gradually attenuate, margins entire, slightly undulate, sparsely to moderately soft-puberulent, somewhat viscid (stipitate-glands very small); mostly withering by flowering, new rosettes sometimes present;
cauline petiolate (petioles 0.5–1 mm), blades (linear) elliptic proximally to (narrowly) lanceolate or ovate distally, largest 50–80 × 15–25 mm, reduced distally and becoming more ovate, 15–20 mm in arrays, margins entire or serrulate.
2–3 mm, glabrous or sparsely hairy.
0.5–5(–2.5) mm, densely short hispid-canescent, sparsely to densely stipitate-glandular, ± viscid;
bracts small, grading into phyllaries.
3–7 mm.
broadly campanulate, (3.5–)4–5(–5.5) mm.
8–17;
laminae 5–6.2 × 0.4–0.6 mm.
6–10;
laminae ca. 3–5 × 1–2 mm.
10–22;
corollas 3–3.2 mm, lobes 0.5–1.2 mm.
10–20;
corollas 3–4 mm, lobes ca. 1 mm.
in 3–4 series, unequal, lanceolate, margins ciliate, apices acute.
in 2–3 series, unequal, oblong to linear-lanceolate, acute to attenuate, sparsely to moderately strigose, especially distally, sparsely to densely stipitate-glandular, ± viscid.
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.
1–140, not secund, in thyrsiform-paniculiform arrays, sometimes compact, nearly as wide as tall, and rounded, sometimes appearing almost rounded corymbiform, proximal branches sometimes much elongate, not secund, spreading to ascending.
(obconic) 1.1–1.5 mm, moderately strigose;
pappi 3.8–4 mm (slightly clavate).
1.5–2.5 mm, ± moderately short-strigose;
pappi 3–4 mm.
= 18.
Solidago sempervirens
Solidago wrightii
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.)
In Texas, Solidago wrightii grows primarily in the trans-Pecos region. It is one of the few usually obviously stipitate-glandular, viscid goldenrods; the stipitate glands are minute when present on other species. Two varieties have been recognized on degree of glandularity; these grade into each other to such a degree that their recognition does not appear warranted. The few plants seen from northeastern New Mexico and westernmost Oklahoma are possible variants of S. petiolaris, but overall they fit better in S. wrightii. A detailed morphometric study of this and the next two species is needed to resolve ambiguous species limits on the western Great Plains.
(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 |
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