Symphyotrichum anomalum

(Engelmann ex Torrey & A. Gray) G. L. Nesom

Phytologia 77: 275. 1995.

Common names: Manyray aster
Endemic
Basionym: Aster anomalus Engelmann ex Torrey & A. Gray Fl. N. Amer. 2: 503. 1843
Treatment appears in FNA Volume 20. Treatment on page 504. Mentioned on page 471, 500, 505.

Perennials, 20–100 (–120) cm, cespitose; usually with short, stout, branched caudices, woody with age, sometimes long-rhizomatous. Stems 1–5+, erect or ascending (straight, often stout), proximally usually ± densely hirtellous, sometimes glabrescent, distally hirsute. Leaves thick, firm, margins (slightly undulate) scabrous, adaxial faces glabrous or strigose, scabrous, adaxial ± sparsely hirsute to scabro-hirtellous, sometimes ± scabrous (cauline sometimes with tufts of smaller leaves in axils); basal withering by flowering, petiolate (petioles sometimes narrowly winged), blades oblong-ovate to lanceolate, 10–40 × 10–20 mm, bases deeply cordate, margins sparsely serrate to serrulate, apices usually acute, sometimes obtuse to rounded; proximal cauline usually withering by flowering, petiolate (petioles slender to ± winged), blades ovate to broadly lanceolate, 40–90 × (15–) 25–50 mm, bases shallowly cordate or rounded to attenuate, rarely truncate, margins subentire or entire (rarely serrulate), apices acute or acuminate, with short callus point; distal subpetiolate or sessile, blades ovate to lanceolate or linear-lanceolate, 10–70 × 1–10 mm, gradually or abruptly reduced distally, bases attenuate to cuneate, margins entire, apices acute to acuminate. Heads in open, diffuse, paniculiform arrays, branches divaricate, stout, long, densely bracteate. Peduncles densely bracteate, 0.3–5 (–10) cm (rarely subsesssile), bracts numerous, linear, 2–6 mm, mucronulate, grading into phyllaries. Involucres campanulate, 5–10 mm. Phyllaries in 4–6 series, oblong-lanceolate (outer) to oblanceolate-linear (innermost), unequal, bases indurate (appressed), margins ciliate to scabro-ciliate, green zones diamond-shaped to lanceolate, ± foliaceous distally, apices reflexed to squarrose, long-acuminate, apiculate, often purple, faces strigoso-hirtellous. Ray-florets 18–45; corollas usually bright lavender-blue to purple, seldom white, laminae 9–15 (–18) × 1–3.2 mm. Disc-florets 33–40+; corollas cream or light yellow turning pinkish purple, (4–) 4.5–5.5 mm, tubes shorter than funnelform throats, lobes sometimes ± spreading, triangular to lanceolate, 0.5–0.8 mm. Cypselae deep purple to purplish brown or brown with purple speckles (nerves stramineous), oblong-obovoid, compressed, (1–) 2.5–3.5 (–3.8) mm, 5–6-nerved, faces glabrous; pappi tawny or rose-tinged, 3.7–5.2 mm. 2n = 16.


Phenology: Flowering late Aug–Oct.
Habitat: Dry, sandy, loamy, or clayey soils over limestone, or acid soils over chert, sandstone, or granite, rocky, open deciduous woods, thickets, dry ridges, cliffs, bluffs, occasional along streams
Elevation: 50–500 m

Distribution

V20-1128-distribution-map.gif

Ark., Ill., Kans., Mo., Okla.

Discussion

A. G. Jones (1989, 1992) reported that Symphyotrichum anomalum may hybridize with S. drummondii, S. oolentangiense, and S. shortii.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Symphyotrichum anomalum"
less sparsely hirsute +  and scabro-hirtellous +
long-rhizomatous +
not tailed +, rounded +  and obtuse +
apiculate +  and truncate +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
distinct +
4 cm40 mm <br />0.04 m <br /> (9 cm90 mm <br />0.09 m <br />) +
reflexed +  and squarrose +
subequal +
scarious +
25mm +  and 50mm +
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† +
(Engelmann ex Torrey & A. Gray) G. L. Nesom +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
4 cm40 mm <br />0.04 m <br /> (9 cm90 mm <br />0.09 m <br />) +
attenuate +  and cuneate +
indurate +
25mm;50mm +
Aster anomalus +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
ovate;lanceolate or linear-lanceolate +
reduced +
1mm;10mm +
rugulose +  and muricate +
mucronulate +
barbellulate +  and barbellate +
sessile +  and petiolate +
Manyray aster +
not 2-lipped +  and actinomorphic +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
light yellow turning pinkish purple +, cream +, white +, usually bright lavender-blue +  and purple +
at maturity , more or less ampliate , tubes usually shorter +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
purple +  and purplish brown or brown +
strigillose +  and glabrous +
compressed +, cylindric +  and obovoid or oblong +
fertile +  and bisexual +
fertile +  and bisexual +
sessile +  and subpetiolate +
Ark. +, Ill. +, Kans. +, Mo. +  and Okla. +
50–500 m +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
purple speckles +
glabrous +  and strigoso-hirtellous +
compressed;oblong-obovoid +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry, sandy, loamy, or clayey soils over limestone, or acid soils over chert, sandstone, or granite, rocky, open deciduous woods, thickets, dry ridges, cliffs, bluffs, occasional along streams +
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 +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
2 (?) +  and 5 (?) +
1mm;3.2mm +
sessile +  and petiolate +
cauline +  and basal +
decurrent +
triangular +  and lanceolate +
ciliate +  and scabro-ciliate +
entire +, truncate +  and serrate +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
not +  and hyaline +
40mm;90mm +
ciliate +  and scabrous +
acuminate +, acute +, entire +, subentire +, rounded +  and attenuate +
serrate to serrulate +
25mm +  and 50mm +
2-carpellate +
rose-tinged +  and tawny +
persistent +
25 +  and 40 +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.52 cm5.2 mm <br />0.0052 m <br />) +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flowering late Aug–Oct. +
oblong-lanceolate +  and oblanceolate-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 +
branched +  and simple +
ascending +  and erect +
1 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Aster sect. Heterastrum +  and Aster subg. Symphyotrichum +
Symphyotrichum anomalum +
Symphyotrichum sect. Symphyotrichum +
species +
funnelform-campanulate +  and cylindric +
ampliate +
100 cm1,000 mm <br />1 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
20 cm200 mm <br />0.2 m <br /> (100 cm1,000 mm <br />1 m <br />) +
tree +, shrub +  and subshrub +
diamond-shaped +  and lanceolate +