Solidago hispida
Solidago spathulata
hairy goldenrod, verge d'or hispide
coast goldenrod, dune goldenrod
1(–5), erect, simple, glabrous or moderately to densely hispido-villous, sometimes hairs appressed.
1–15+, decumbent to erect, proximally glabrous, sparsely strigose in array.
basal and proximal cauline tapering to winged petioles, blades broadly oblanceolate to obovate or elliptic, 35–200 (including petioles) × 15–60 mm, margins serrate or crenate, apices acute, faces sparsely to densely hispido-villous, rarely glabrous;
mid and distal cauline sessile, blades elliptic, 15–30 × 5–7 mm, rapidly reduced distally, margins entire.
basal petiolate to sessile;
blades spatulate, 40–120 × 10–30 mm, subcoriaceous, margins crenate, apices acute to obtuse, glabrous;
many-leaved rosettes present at flowering;
cauline 9–19, sessile;
blades similar to basal proximally, becoming oblanceolate distally, reduced to 10 mm, margins entire, apices acute, often heavily resinous.
1.5–2.5 mm, hispido-villous to canescent.
3–10 mm (longest), sparsely strigose;
bracts clustered near base of heads.
campanulate, 4–6 mm.
campanulate, 4–7 mm.
6–14;
laminae 1.5–4.5 × 0.5–1 mm.
4–10;
laminae 2–4 × 1–2 mm.
6–12;
corollas 3–4.5 mm, lobes 0.6–1.2 mm.
10–18;
corollas 4.3–6 mm, lobes 0.7–1.5 mm.
in 3–4 series, appressed, strongly unequal, midribs and tips conspicuously green, margins white, scarious, apices obtuse, glabrous or moderately strigose.
(15–24 in 3–4 series) unequal, very resinous;
outer ovate, obtuse, inner linear-lanceolate, obtuse or acute.
8–250+ in usually wand-paniculiform arrays of short axillary and terminal racemiform, non-secund clusters, sometimes proximal branches elongated, ascending and bearing short axillary and terminal racemiform clusters.
5–100+, not secund, in paniculiform arrays, or virgate to thyrsiform in robust plants, consisting of axillary and terminal racemiform clusters.
(narrowly obconic) 1–2.5 mm, glabrous;
pappi 2.5–4 mm (sometimes distinctly clavate).
appressed-strigose;
pappi 3.5–5.5 mm.
= 18.
= 18.
Solidago hispida
Solidago spathulata
Ray floret color can fade with time, both in the field and on dried specimens, making it difficult to distinguish Solidago hispida from S. bicolor, in which it has sometimes been included. The latter tends to have slightly broader phyllaries and more obviously clavate pappus bristles. The two co-occur in some populations but do not appear to form hybrid swarms with a range in ray corolla color. Three varieties have been described on the basis of growth and pubescence features and are sometimes recognized. These may represent only extremes in continua of variation. Variety lanata has densely villous stems and leaves; such plants occur scattered through much of the range of the species. Two glabrous-stemmed varieties have been described; plants of var. tonsa are relatively small and were first described from Newfoundland; var. huronensis includes relatively tall glabrous plants found growing in sand dunes along the shore of Lake Huron in Michigan and Ontario. The latter plants have been treated as var. tonsa but the name is misapplied. Other varietal names are based on minor variations.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Solidago spathulata is scattered along the coast in isolated populations. A narrow interpretation of the species is accepted here following G. S. Ringius (1985).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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