Solidago caesia

Linnaeus

Sp. Pl. 2: 879. 1753.

Common names: Blue-stem or woodland or wreath goldenrod verge d’or bleuâtre
Endemic
Synonyms: Aster caesius (Linnaeus) Kuntze
Treatment appears in FNA Volume 20. Treatment on page 126. Mentioned on page 127.
Revision as of 22:44, 13 August 2020 by RevisionBot (talk | contribs) (Bot: Adding category Revision Pending)

Plants (20–)35–80(–100) cm; rhizomes woody, caudexlike. Stems 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. Leaves: 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. Heads 9–380, in short, secund, axillary and terminal racemo-paniculiform clusters (4.4–)13–36(–58) cm. Peduncles 2–10 mm, sparsely to moderately strigose; bracteoles linear, 1–8. Involucres narrowly campanulate, (3.5–)4.8–6(–7.2) mm. Phyllaries in ca. 3 series, unequal, outermost lanceolate (1–1.7 mm), acute, innermost linear-oblong (2.3–4 mm), 1-nerved, obtuse to acute. Ray florets 1–6; laminae (1.5–)2–3(–4) × ca. 1 mm. Disc florets 3–6(–9); corollas 2–3(–4) mm, lobes (0.5–)1–1.5(–2) mm. Cypselae 1–2(–2.5) mm, moderately to densely strigose; pappi 2–3(–3.7) mm.

Distribution

V20-252-distribution-map.gif

Ont., Que., Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Ky., La., Maine, Mass., Md., Mich., Miss., Mo., N.C., N.H., N.J., N.Y., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Va., Vt., W.Va., Wis.

Discussion

Varieties 2 (2 in the flora).

Solidago caesia is sometimes defined more broadly to include the erect-stemmed S. curtisii and S. ouachitensis.

Selected References

None.

Key

1 Proximal midcauline leaves narrowly lanceolate, 50–150 × 8–30 cm; stems strongly arching; throughout most of range Solidago caesia 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 Solidago caesia var. zedia
... more about "Solidago caesia"
John C. Semple +  and Rachel E. Cook +
Linnaeus +
Solidago sect. Glomeruliflorae +
Blue-stem or woodland or wreath goldenrod +  and verge d’or bleuâtre +
Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Maine +, Mass. +, Md. +, Mich. +, Miss. +, Mo. +, N.C. +, N.H. +, N.J. +, N.Y. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +, Va. +, Vt. +, W.Va. +  and Wis. +
Aster caesius +
Solidago caesia +
Solidago subsect. Glomeruliflorae +
species +