Solidago hispida
Solidago kralii
hairy goldenrod, verge d'or hispide
Kral's goldenrod
1(–5), erect, simple, glabrous or moderately to densely hispido-villous, sometimes hairs appressed.
1–10(–50), ascending to erect, glabrous or sparsely strigillose, copiously viscid-resinous in arrays.
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 gradually tapering to winged petioles, blades oblanceolate, (25–)100–200 × (4–)15–28 mm, membranous, margins shallowly serrate apically (teeth less than 1 mm), finely ciliate, midnerves prominent, faces glabrous, viscid;
rosettes present at flowering, at ends of elongated rhizomes, 1st leaves the smallest;
proximal to mid cauline similar, sessile, blades linear-elliptic, quickly reduced;
mid blades 40–80 × 6–9 mm, reduced distally, margins entire;
distal sessile, blades linear-elliptic to linear, 10–35 × 1–3 mm, reduced in arrays.
1.5–2.5 mm, hispido-villous to canescent.
sparsely strigillose, copiously resinous, naked proximally to bracteolate near heads;
bracteoles usually 1–3.
campanulate, 4–6 mm.
campanulate, 5–7 mm.
6–14;
laminae 1.5–4.5 × 0.5–1 mm.
3–5(–7);
laminae 2.5–3.5 × 1–1.5 mm.
6–12;
corollas 3–4.5 mm, lobes 0.6–1.2 mm.
10–16;
corollas 5–6 mm, lobes 1–1.5(–1.8) mm.
in 3–4 series, appressed, strongly unequal, midribs and tips conspicuously green, margins white, scarious, apices obtuse, glabrous or moderately strigose.
in 3–4 series, strongly unequal, apices obtuse, rounded to slightly cuspidate, ciliate, sparsely, finely strigose, obscured by exudate, copiously resinous;
outer ovate (1.5–2 mm), mid narrowly ovate (3–4 × 1.5 mm), inner linear-lanceolate.
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.
50–200 (1–15 per branch), in narrowly thyrsiform, paniculiform arrays, 9–30 × 4–5 cm, longer branches ascending, 2–10 cm.
(narrowly obconic) 1–2.5 mm, glabrous;
pappi 2.5–4 mm (sometimes distinctly clavate).
fusiform to narrowly obconic, 3–5 mm, ribs 5–8, golden brown, darker than intercostal portions, thin, glabrous;
pappi 4–5 mm (sometimes strongly clavate).
= 18.
= 18.
Solidago hispida
Solidago kralii
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.)
Of conservation concern.
Solidago kralii is closely related to S. simplex, S. plumosa, and S. arenicola but occurs in a different habitat; it is much more copiously viscid-resinous than those species.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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