Solidago plumosa

Small

Bull. Torrey Bot. Club 25: 476. 1898.

Common names: Plumose or plumed goldenrod
EndemicConservation concern
Treatment appears in FNA Volume 20. Treatment on page 116. Mentioned on page 112.

Plants 40–100 cm; caudices woody. Stems glabrous, viscid-resinous. Leaves: basal petiolate; blades tapering to petioles, linear to elliptic-oblanceolate, 100–150 (–220) (including petiole) × 5–10 (–15) mm, margins serrate, apices acute to obtuse; the outer much smaller; mid and distal similar to basal, becoming sessile, mid 40–60 × 2–4 mm, distally reduced (in arrays) to linear bracts 10–35 × 1–2 mm, entire. Heads in paniculiform arrays, 15–30 cm, branches ascending, 2–10 cm, not secund in erect stems, secund in arching ones. Peduncles 2–6 mm, glabrous, sometimes resinous-glandular; bracteoles linear, 0–5. Involucres campanulate, 4.5–6 mm. Phyllaries (in 3–4 series) lanceolate to linear-lanceolate, strongly unequal, apices rounded, glabrous, somewhat resinous. Ray-florets 3–6; laminae 3.5–5 × 1 mm. Disc-florets mostly 8–10; corollas 4.5–5.5 mm, lobes 0.8–1.2 mm. Cypselae obconic, ca. 2.5 mm, shallowly ribbed, glabrous; pappi 4–5 mm. 2n = 18.


Phenology: Flowering Aug–Sep.
Habitat: Stream banks
Elevation: 100 m

Discussion

Of conservation concern.

Solidago plumosa is known only from a short stretch of the Falls Yadkin River, Stanley County. This species is similar to S. simplex var. racemosa and possibly conspecific with S. simplex. Insufficient material of this taxon has limited study. Known only from the type material since its description, it has been found recently, locally abundant along the Yadkin River at the type locality (A. Weakly, pers. comm.).

Selected References

None.

Lower Taxa

None.
... more about "Solidago plumosa"
not tailed +, rounded +  and obtuse +
resinous +
distinct +
rounded;acute;obtuse +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
John C. Semple +  and Rachel E. Cook +
not persisting +
decurrent +
Humiles +
compound +  and simple +
15 cm150 mm <br />0.15 m <br /> (22 cm220 mm <br />0.22 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
linear;elliptic-oblanceolate +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
rugulose +  and muricate +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
secund +  and not secund +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Plumose or plumed goldenrod +
not 2-lipped +  and actinomorphic +
yellow +  and white +
ampliate +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
fertile +  and bisexual +
fertile +  and bisexual +
resinous +
stipitate-glandular +, puberulent +, pilose +, glabrous +, glabrous or +  and sparsely densely scabrous strigillose or villous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Stream banks +
indeterminate +
heterogamous +  and homogamous +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.17 cm1.7 mm <br />0.0017 m <br /> (1 cm10 mm <br />0.01 m <br />) +
3.5mm;5mm +
erect;spreading +
triangular +  and narrowly lanceolate +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
linear-lanceolate +  and oblong or ovate +
unequal +  and rarely subequal +
2-carpellate +
persistent +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
not persisting +
Flowering Aug–Sep. +
stipitate-glandular +
lanceolate +  and linear-lanceolate +
ovate-oblanceolate +
Bull. Torrey Bot. Club +
bearing subulate enations +, hairy +  and bristly +
strigillose +  and glabrous +
8 +  and 10 +
exalbuminous +
Endemic +  and Conservation concern +
viscid-resinous +
appendaged +  and truncate +
papillate +  and smooth +
Actipsis +, Aster subg. Solidago +, Leioligo +  and Oligoneuron +
Solidago plumosa +
Solidago subsect. Humiles +
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 />) +