Solidago sempervirens
Solidago juliae
seaside goldenrod, verge d'or toujours verte
Julia's goldenrod
1–10(–20+), erect or ascending, glabrous throughout or hairy in arrays.
1–5, densely, evenly villoso-tomentose (hairs white, thin, crisped).
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 0;
mid and distal cauline lanceolate to narrowly lanceolate, 3-nerved, 50–80(–120) × 5–10(–12) mm, reduced distally to 10–20 mm, margins shallowly crenate or serrate to nearly entire, faces moderately to densely short pilose (hairs somewhat ascending).
2–3 mm, glabrous or sparsely hairy.
moderately to densely villoso-strigillose, rarely sparsely minutely stipitate-glandular;
bracteoles 1–2(–4).
3–7 mm.
narrowly campanulate, 3–4 mm.
8–17;
laminae 5–6.2 × 0.4–0.6 mm.
7–15;
laminae 1–2(–3) × 0.1–0.6 mm.
10–22;
corollas 3–3.2 mm, lobes 0.5–1.2 mm.
5–9;
corollas 2.8–3 mm, lobes 0.4–1.1 mm.
in 3–4 series, unequal, lanceolate, margins ciliate, apices acute.
in 3–4 series, oblong-lanceolate or lanceolate to narrowly elliptic, strongly unequal, margins apically ciliate, glabrous, rarely outer sparsely, minutely stipitate-glandular.
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.
80–950, secund, in narrowly pyramidal paniculiform arrays, 3–4 times as long as wide, branches spreading and slightly secund, bracts linear-lanceolate, 3–6 mm.
(obconic) 1.1–1.5 mm, moderately strigose;
pappi 3.8–4 mm (slightly clavate).
(narrowly obconic) 1.4–1.6 mm, sparsely strigillose;
pappi ca. 3 mm.
= 18.
Solidago sempervirens
Solidago juliae
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.)
Solidago juliae is found on the Edwards Plateau and in Trans-Pecos Texas and adjacent Mexico. G. L. Nesom (1989e) discussed its nomenclatural history and reasons for treating it as a distinct species.
(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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