Symphyotrichum plumosum

(Small) Semple in J. C. Semple et al.

in J. C. Semple et al., Cult. Native Asters Ontario, 134. 2002.

Endemic
Basionym: Aster plumosus Small Bull. Torrey Bot. Club 51: 387. 1924
Synonyms: Symphyotrichum concolor var. plumosum (Small) Wunderlin & B. F. Hansen
Treatment appears in FNA Volume 20. Treatment on page 493. Mentioned on page 473, 475, 483.

Perennials, 40–100 cm, cespitose, eglandular; with cormoid, woody caudices. Stems 5–10+, erect or arching (light to dark-brown), proximally sparsely to moderately finely woolly-pilose (hairs spreading to ascending), more densely so distally. Leaves (grayish) soft; basal withering by flowering, sessile, blades (1–3-nerved) elliptic-lanceolate, 20–40 × 10–20 mm, bases attenuate, margins usually entire, rarely remotely serrate, piloso-ciliate, apices acute to obtuse, faces silvery piloso-silky; proximal cauline withering by flowering, sessile, blades oblanceolate, 20–30 × 4–8 mm, bases rounded, subclasping, margins entire, scabrous to silky-piloso-ciliate, apices acute to obtuse, cuspidate-mucronate, faces moderately strigillose; distal sessile, blades lanceolate to narrowly ovate, 8–15 × 2.5–5 mm, reduced distally, bases cuneate, margins entire, apices acute, mucronate, faces moderately, finely lanoso-strigose. Heads radiate, in narrow, paniculiform (wand-shaped) to sometimes compact, racemiform arrays (1 (–3) per branch). Peduncles densely hairy, bracts linear, grading into phyllaries. Involucres campanulate, 7–9 mm. Phyllaries in 3–4 series, spreading to reflexed, linear, unequal, bases (tan) ± indurate, margins scarious proximally, green distally, green zones foliaceous, apices acute, faces moderately woolly-strigose. Ray-florets 7–12; corollas rose-purple, laminae 6–9 × 1–2 mm. Disc-florets 14–20; corollas pink turning purple, 5–6 mm, tubes shorter than narrowly funnelform throats (thinly puberulent), lobes triangular, 0.3–0.5 mm. Cypselae fusiform-obovoid, not compressed, 2–3 mm, 6–8-nerved, faces densely strigose; pappi tan to yellowish tan, (5.5–) 6.5–8 mm. 2n = 8.


Phenology: Flowering Oct–Nov.
Habitat: Deep, dry to moist, sandy soils, pine flatwoods, pine-scrub oak woods, favored by fires and clearcuts
Elevation: 0–40 m

Discussion

Symphyotrichum plumosum is known only from Franklin County. It differs from S. concolor var. concolor in its long-acuminate, recurved to reflexed phyllaries. No intermediates with S. concolor were seen in the field.

Selected References

None.

Lower Taxa

None.
... more about "Symphyotrichum plumosum"
not tailed +, rounded +  and obtuse +
subclasping +  and sessile +
entire +  and serrate +
distinct +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
strigillose +, scabrous +  and silky-piloso-ciliate +
subequal +
scarious +
4mm +  and 8mm +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(Small) Semple in J. C. Semple et al. +
subclasping +  and sessile +
entire +  and serrate +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
strigillose +, scabrous +  and silky-piloso-ciliate +
cuneate +, cuspidate-mucronate +, acute +  and obtuse +
indurate +
4mm;8mm +
Aster plumosus +
subclasping +  and sessile +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
strigillose +, scabrous +  and silky-piloso-ciliate +
lanceolate;narrowly ovate +
reduced +
2.5mm;5mm +
rugulose +  and muricate +
barbellulate +  and barbellate +
not 2-lipped +  and actinomorphic +
pink turning purple +  and rose-purple +
at maturity , more or less ampliate , tubes usually shorter +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
not compressed +  and fusiform-obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
0–40 m +
subclasping +  and sessile +
entire +  and serrate +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
strigose +, woolly-strigose +, lanoso-strigose +, strigillose +, scabrous +  and silky-piloso-ciliate +
cuspidate-mucronate;acute;obtuse +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Deep, dry to moist, sandy soils, pine flatwoods, pine-scrub oak woods, favored by fires and clearcuts +
disciform +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
campanulate +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
2.4 cm24 mm <br />0.024 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
decurrent +
triangular +
subclasping +  and sessile +
entire +  and serrate +
green +  and silvery +
20mm;30mm +
strigillose +, scabrous +  and silky-piloso-ciliate +
cuspidate-mucronate +, acute +  and obtuse +
4mm +  and 8mm +
2-carpellate +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
tan +  and yellowish tan +
persistent +
25 +  and 40 +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering Oct–Nov. +
spreading +  and reflexed +
oblanceolate or spatulate +  and linear +
in J. C. Semple et al., Cult. Native Asters Ontario, +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
exalbuminous +
branched +  and simple +
arching +  and erect +
5 +  and 10 +
appendaged +  and truncate +
papillate +  and smooth +
Symphyotrichum concolor var. plumosum +
Symphyotrichum plumosum +
Symphyotrichum subg. Virgulus +
species +
ampliate +
stipitate-glandular +
40 cm400 mm <br />0.4 m <br /> (100 cm1,000 mm <br />1 m <br />) +
tree +, shrub +  and subshrub +
lanceolate +  and diamond--shaped +