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

Distribution

V20-300-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

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

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Solidago confinis"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
thyrsiform-paniculiform +
indeterminate +  and determinate +
John C. Semple +  and Rachel E. Cook +
A. Gray +
not persisting +
decurrent +
Junceae +
compound +  and simple +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
2 cm20 mm <br />0.02 m <br /> (13 cm130 mm <br />0.13 m <br />) +
linear-lanceolate;lanceolate +
reduced +
5mm;10mm +
rugulose +  and muricate +
ascending;arching +
Southern goldenrod +
not 2-lipped +  and actinomorphic +
yellow +  and white +
ampliate +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +, narrowly obconic +  and cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
usually much larger +
Calif. +  and Mexico (Baja California) +
0–2500 m +
resinous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Wet stream banks, springs, marshes +
25 cm250 mm <br />0.25 m <br /> (50 cm500 mm <br />0.5 m <br />) +
indeterminate +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
heterogamous +  and homogamous +
cone--shaped +, wand +  and club-shaped +
2 cm20 mm <br />0.02 m <br /> (14 cm140 mm <br />0.14 m <br />) +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1mm;2.5mm +
cauline +, mid +, proximal +  and basal +
tapering;elongate +
erect;spreading +
triangular +  and narrowly lanceolate +
1/3 length of inner;2/3 length of inner +
linear-lanceolate +  and oblong or ovate +
unequal +  and rarely subequal +
enlarged +
2-carpellate +
persistent +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
strigose +  and glabrous +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
not persisting +
Flowering Jul–Oct. +
linear-triangular +
ovate-oblanceolate +
ascending +  and spreading +
petiolate +  and attenuate-subpetiolate +
Proc. Amer. Acad. Arts +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
ascending-erect +
1 +  and 10 +
appendaged +  and truncate +
papillate +  and smooth +
Solidago confinis var. luxurians +  and Solidago spectabilis var. confinis +
Solidago confinis +
Solidago subsect. Junceae +
species +
not persisting +
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
5 cm50 mm <br />0.05 m <br /> (100 cm1,000 mm <br />1 m <br />) +