Solidago sempervirens
Solidago albopilosa
seaside goldenrod, verge d'or toujours verte
white-hair goldenrod
1–10(–20+), erect or ascending, glabrous throughout or hairy in arrays.
1–3+, erect, flexuous in proximal arrays, moderately to densely villous.
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 withering by flowering;
basal and proximal cauline abruptly tapering to winged, villous petioles (petioles ± 1/2 or less total leaf length), blades broadly ovate to spatulate, 46–80(–90) × 23–47(–55) mm, margins serrate [teeth 6–12(–15)], abaxial faces moderately villous, more so along nerves, adaxial sparsely to moderately villoso-strigose;
distal cauline petiolate, similar to proximal or more elliptic, 27–45 × 13–20 mm, margins entire to slightly serrate.
2–3 mm, glabrous or sparsely hairy.
3–5 mm, sparsely strigose;
bracteoles 1–3 scattered, ovate.
3–7 mm.
campanulate, 4.3–6.5(–7) mm.
8–17;
laminae 5–6.2 × 0.4–0.6 mm.
3–5;
laminae 2.4–4 × 1–1.5 mm.
10–22;
corollas 3–3.2 mm, lobes 0.5–1.2 mm.
5–8;
corollas 2.2–2.5 mm, lobes ca. 1–2 mm.
in 3–4 series, unequal, lanceolate, margins ciliate, apices acute.
in ca. 3 series, unequal, outer ovate, 1–1.5 mm, obtuse to acute, inner oblong, 1-nerved.
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.
10–30, in short axillary and terminal racemiform/paniculiform clusters.
(obconic) 1.1–1.5 mm, moderately strigose;
pappi 3.8–4 mm (slightly clavate).
(obconic) 1–2 mm, moderately hairy;
pappi 2.3–2.8 mm.
= 36.
Solidago sempervirens
Solidago albopilosa
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.)
Of conservation concern.
Solidago albopilosa is found along the Red River Gorge in Menifee, Powell, and Wolfe counties. It is most similar to S. flexicaulis; it appears weaker and smaller than plants of S. flexicaulis that grow nearby, outside of the rockhouses. Its biology and origins have been discussed in detail (J. R. Beaudry 1959; M. L. Andreasen and W. H. Eshbaugh 1973). Solidago albopilosa is listed as threatened by the U.S. Fish and Wildlife Service (Federal Register 1988).
(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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