Symphyotrichum puniceum var. scabricaule

(Shinners) G. L. Nesom

Phytologia 77: 290. 1995.

Common names: Roughstem aster
EndemicConservation concern
Basionym: Aster scabricaulis Shinners Field & Lab. 21: 156. 1953
Synonyms: Aster puniceus var. scabricaulis (Shinners) A. G. Jones
Treatment appears in FNA Volume 20. Treatment on page 525.

Plants 100–250 (–300) cm. Stems usually densely and uniformly hirsute, sometimes less so and in lines distally. Leaves: faces ± concolorous, without dark, distinct reticulum, adaxial with distinctly impressed main veins (giving rough appearance); array leaves reduced in size relative to mid cauline. 2n = 16.


Phenology: Flowering Sep–Oct(–Nov).
Habitat: Open seepage sites with mucky, saturated soils, wet, seepy grounds in sandy pinelands, sphagnum bogs, shrubby seepage bogs, marshes, pond margins, open stream banks, roadside and drainage ditches
Elevation: 0–100+ m

Discussion

Of conservation concern.

Variety scabricaule is known from the post-oak belt of eastern Texas and in Louisiana (Natchitoches Parish), Mississippi (Grenada and Lauderdale counties), and Alabama (Penton, Chambers County, Kral 37887, BRIT). It is considered of conservation concern in Texas, where most populations occur. Variety scabricaule is in the Center for Plant Conservation’s National Collection of Endangered Plants. The hybrid Symphyotrichum puniceum var. scabricaule × S. lateriflorum was reported by G. L. Nesom (1997b).

Selected References

None.

Lower Taxa

None.

No values specified.

pilose +  and glabrate +
glabrate +  and scabrous +
not tailed +, rounded +  and obtuse +
subpetiolate +  and petiolate +
distinct +
3 cm30 mm <br />0.03 m <br /> (1 cm10 mm <br />0.01 m <br />) +
subequal +
scarious +
3mm +  and 20mm +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +  and open +
indeterminate +  and determinate +
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(Shinners) G. L. Nesom +
petiolate +  and subpetiolate +
20 cm200 mm <br />0.2 m <br /> (22 cm220 mm <br />0.22 m <br />) +
auriculate +, less attenuate +  and cuneate or auriculate +
indurate +
10mm;40mm +
Aster scabricaulis +
petiolate +  and subpetiolate +
20 cm200 mm <br />0.2 m <br /> (22 cm220 mm <br />0.22 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (16 cm160 mm <br />0.16 m <br />) +
lanceolate;oblong or elliptic-oblong +
reduced +
1mm;40mm +
rugulose +  and muricate +
linear-lanceolate +  and linear +
widely spreading;ascending +
barbellulate +  and barbellate +
long-rhizomatous +  and branched +
sessile +  and petiolate +
Roughstem aster +
not 2-lipped +  and actinomorphic +
0.41 cm4.1 mm <br />0.0041 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
cream becoming pink or purple +, yellow +, usually pale +  and dark blue lavender or purple seldom white or pink +
at maturity , more or less ampliate , tubes usually shorter +
0.5 cm5 mm <br />0.005 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
brown +  and purple +
strigillose +  and glabrous +
compressed +, falcate +  and oblanceoloid +
fertile +  and bisexual +
fertile +  and bisexual +
Ala. +, La. +, Miss. +  and Tex. +
0–100+ m +
concolorous +
strigillose +, glabrous +  and hispid +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open seepage sites with mucky, saturated soils, wet, seepy grounds in sandy pinelands, sphagnum bogs, shrubby seepage bogs, marshes, pond margins, open stream banks, roadside and drainage ditches +
disciform +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
campanulate +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
12mm;18mm +
2 (?) +  and 5 (?) +
1.4mm;1.8mm +
petiolate +  and subpetiolate +
20 cm200 mm <br />0.2 m <br /> (22 cm220 mm <br />0.22 m <br />) +
lengthened;70mm;200mm +
cauline +  and basal +
less attenuate;cuneate or auriculate +
reduced +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
decurrent +
reflexed;spreading;erect +
triangular +
subpetiolate +  and petiolate +
30mm;10mm +
entire +, subentire +, acuminate +  and rounded +
serrate to sometimes +
3mm +  and 20mm +
2-carpellate +
persistent +
25 +  and 40 +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
less hispid or hirsute +  and villous +
0.2 cm2 mm <br />0.002 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering Sep–Oct(–Nov). +
oblanceolate-spatulate +  and linear +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
exalbuminous +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.1mm;0.2mm +
Endemic +  and Conservation concern +
branched +  and simple +
1 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Aster puniceus var. scabricaulis +
Symphyotrichum puniceum var. scabricaule +
Symphyotrichum puniceum +
variety +
funnelform-campanulate +  and cylindric +
purplish tinged +
long-acuminate +  and caudate mucronate +
ampliate +
with stout , branched caudices +  and short-rhizomatous +
250 cm2,500 mm <br />2.5 m <br /> (300 cm3,000 mm <br />3 m <br />) +
100 cm1,000 mm <br />1 m <br /> (250 cm2,500 mm <br />2.5 m <br />) +
linear-lanceolate +