Solidago confinis

A. Gray

Proc. Amer. Acad. Arts 17: 191. 1882.

Common names: Southern goldenrod
Synonyms: Solidago confinis var. luxurians (H. M. Hall) Jepson Solidago spectabilis var. confinis (A. Gray) Cronquist
Treatment appears in FNA Volume 20. Treatment on page 143. Mentioned on page 140.

Plants 30–210 cm; caudices branching, thick, woody. Stems 1–10+, ascending-erect, glabrous, often short fascicles of leaves present at nodes in axes of distal cauline leaves. Leaves: rosettes present at flowering; basal and proximal cauline tapering to elongate, winged petioles, bases nearly sheathing stems, blades linear-lanceolate, 50–260 (including petiole) × 5–45 mm, somewhat fleshy (fresh), margins entire, faces glabrous; mid and distal cauline crowded (robust plants), sessile, blades linear-lanceolate to lanceolate, 20–130 × 5–10(–25) mm, reduced distally, margins entire, apices acute to attenuate, glabrous. Heads 70–320, usually not secund, in thyrsiform-paniculiform arrays, sometimes apically secund, 5–25(–50) × 2–14 cm; branches ascending to arching. Peduncles 2–8 mm, glabrous or sparsely strigose; bracteoles 1–3, distally grading into phyllaries. Involucres campanulate, 2.5–4 mm. Phyllaries in 3–4 series, linear-triangular, unequal, margins involute near tip, sharply acute, the outer 1/3–2/3 length of inner (1–3 × 0.4–0.9 mm), midribs usually enlarged and translucent. Ray florets 8–12; laminae 1–2.5 × 1 mm. Disc florets 10–20; corollas 3–4 mm, lobes 1–1.5 mm. Cypselae (narrowly obconic) 2 mm (5–7 broad ribs lighter than body), sparsely to moderately strigose; pappi 2–3 mm. 2n = 18.

Phenology: Flowering Jul–Oct.
Habitat: Wet stream banks, springs, marshes
Elevation: 0–2500 m



Calif., Mexico (Baja California).


Solidago confinis is similar to S. spectabilis and was treated by A. Cronquist (1994) as a variety of that species.

Selected References


Lower Taxa

... more about "Solidago confinis"
John C. Semple +  and Rachel E. Cook +
A. Gray +
Junceae +
Southern goldenrod +
Calif. +  and Mexico (Baja California). +
0–2500 m +
Wet stream banks, springs, marshes +
Flowering Jul–Oct. +
Proc. Amer. Acad. Arts +
Solidago confinis var. luxurians +  and Solidago spectabilis var. confinis +
Solidago confinis +
Solidago subsect. Junceae +
species +