Solidago caesia
Solidago curtisii
axillary goldenrod, blue-stem goldenrod, blue-stem or woodland or wreath goldenrod, verge d'or bleuâtre, wreath goldenrod
Curtis' goldenrod, mountain decumbent goldenrod
1–10+, usually blue to purple, glaucous, arching, straight, usually simple, occasionally with 2–3(–4) elongated lateral branches, glabrous or slightly strigose in arrays.
1–4, erect, straight, glabrous or moderately hirtello-strigose.
basal withering by flowering;
proximal to mid cauline sessile, blades lanceolate, (47–)70–100(–150) × 8–20(–30) mm, margins serrate (with 0–24 teeth per side), apices acuminate, faces abaxially glabrous or sparsely hairy, adaxially sparsely hairy;
distal sessile, blades narrowly lanceolate, (20–)40–70(–100) × (3.4–)5.6–11(–17) mm, margins entire to slightly serrate, faces glabrous or sparsely hairy.
basal withering by flowering;
proximal to mid cauline weakly petiolate or sessile, blades lanceolate to elliptic, (36–)95–150(–180) × (10–)19–43(–60) mm, margins serrate (with (3–)8–20(–36) teeth), faces glabrous or sparsely hairy, more so along nerves;
distal cauline sessile, blades narrowly lanceolate to narrowly elliptic, (5–)37–90(–130) × (3.5)5–18(–34) mm, margins entire to sparsely serrate (0–9(–14) teeth), faces glabrous or sparsely hairy, sometimes more pilose along nerves.
2–10 mm, sparsely to moderately strigose;
bracteoles linear, 1–8.
2–6 mm, moderately to densely finely strigose;
bracteoles 0–3, linear-oblong.
narrowly campanulate, (3.5–)4.8–6(–7.2) mm.
narrowly campanulate, (5–)5.6–7(–8) mm.
1–6;
laminae (1.5–)2–3(–4) × ca. 1 mm.
2–4(–6);
laminae (2–)2.5–4(–4.6) × 1–2 mm.
3–6(–9);
corollas 2–3(–4) mm, lobes (0.5–)1–1.5(–2) mm.
3–7(–9);
corollas mostly 2–3 mm, lobes 1–1.7(–2.4) mm.
in ca. 3 series, unequal, outermost lanceolate (1–1.7 mm), acute, innermost linear-oblong (2.3–4 mm), 1-nerved, obtuse to acute.
in 3–4 series, strongly unequal, outermost 1–1.4(–2) mm, innermost (2.5–)3–4(–4.4) mm, obtuse to acute, 1-nerved.
9–380, in short, secund, axillary and terminal racemo-paniculiform clusters (4.4–)13–36(–58) cm.
20–800 in short axillary and terminal racemiform/paniculiform, non-secund arrays (2–)8.5–38.5(–65) cm.
1–2(–2.5) mm, moderately to densely strigose;
pappi 2–3(–3.7) mm.
1–2(–3) mm, sparsely to moderately strigose;
pappi (2–)2.7–3.6(–4.5) mm.
Solidago caesia
Solidago curtisii
Varieties 2 (2 in the flora).
Solidago caesia is sometimes defined more broadly to include the erect-stemmed S. curtisii and S. ouachitensis.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Varieties 2 (2 in the flora).
Solidago curtisii is similar to S. caesia and may be confused with robust, pressed and dried specimens of the latter if they are mounted such that the arching habit cannot be observed.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Proximal midcauline leaves narrowly lanceolate, 50–150 × 8–30 cm; stems strongly arching; throughout most of range | var. caesia |
1. Proximal midcauline leaves shorter and broadly lanceolate to rhombic, 50–90 × 13–24 mm; stems weakly arching; wet lowlands of Alabama, Arkansas, Florida, Georgia, Mississippi | var. zedia |
1. Proximal midcauline leaf blades broadly lanceolateand sparsely hairy | var. curtisii |
1. Proximal midcauline leaf blades elliptic and moderately hairy 22b. Solidago curtisii var. flaccidifolia | → 1 |
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