Solidago ulmifolia

Muhlenberg ex Willdenow

Sp. Pl. 3: 2060. 1803.

Common names: Elm-leaf goldenrod
Endemic
Synonyms: Aster ulmifolius (Muhlenberg ex Willdenow) Kuntze
Treatment appears in FNA Volume 20. Treatment on page 144. Mentioned on page 132, 145.

Plants 40–120 cm; caudices branching, woody. Stems usually 1, erect, glabrous, sparsely hairy in arrays. Leaves: basal when present similar to proximal cauline; proximal cauline often withering by flowering, tapering (sometimes rather abruptly) to short, winged petioles, blades ovate-lanceolate, 60–100(–150) × 30–40(–50) mm, thin, margins coarsely serrate, apices acute, abaxial faces hirsute on main nerves, adaxial sparsely hirsute to somewhat scabrous; mid to distal cauline subsessile to sessile, blades lanceolate, 20–50 × 5–20 mm, gradually reduced distally, margins entire. Heads 20–150, secund, in open paniculiform arrays, proximal branches elongate and widely divergent, sometimes pyramidal-secund with proximal branches short and recurved-secund. Peduncles 1.7–2 mm, sparsely to moderately short hispido-strigose, bracteoles 2–7, ovate, grading into phyllaries. Involucres 3–4 mm. Phyllaries (16–18) in 2–3 series, unequal; outer ovate, acute, inner linear-lanceolate, obtuse to acute. Ray florets 3–6; laminae 1–2 × 0.5–1 mm. Disc florets 4–7; corollas 2.7–3 mm, lobes 0.5–1.1 mm. Cypselae 1–1.6 mm, finely hairy; pappi ± 2.5 mm.

Distribution

V20-304-distribution-map.gif

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

Discussion

Varieties 2 (2 in the flora).

Solidago helleri is possibly a hybrid of S. ulmifolia with S. delicatula.

Selected References

None.

Key

1 Stems glabrous or nearly so proximal to arrays; throughout range Solidago ulmifolia var. ulmifolia
1 Stems distinctly spreading-hirsute; Arkansas, Mississippi, Missouri Solidago ulmifolia var. palmeri
... more about "Solidago ulmifolia"
John C. Semple +  and Rachel E. Cook +
Muhlenberg ex Willdenow +
Solidago (sect. Undefined) ser. Venosae +
Elm-leaf goldenrod +
N.S. +, Ont. +, Ala. +, Ark. +, Conn. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Mass. +, Md. +, Mich. +, Minn. +, Miss. +, Mo. +, N.H. +, N.J. +, N.Y. +, Nebr. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, W.Va. +  and Wis. +
Aster ulmifolius +
Solidago ulmifolia +
Solidago (sect. Solidago) ser. Venosae +
species +