Eurybia mirabilis

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

Phytologia 77: 261. 1995.

Common names: Bouquet aster
EndemicConservation concern
Basionym: Aster mirabilis Torrey & A. Gray Fl. N. Amer. 2: 165. 1841
Treatment appears in FNA Volume 20. Treatment on page 373. Mentioned on page 366.

Plants 30–120 cm; not strongly colonial or in clumps, not or barely stipitate-glandular; rhizomes coarse, short, woody. Stems 1–3+, erect, slightly flexuous, simple, sparsely strigose proximally or glabrescent, densely strigose distally. Leaves basal and cauline, margins crenate-serrate, teeth mucronate, margins scabrous to strigoso-ciliate, apices acute to obtuse, ± acuminate, mucronate, abaxial faces scabrous (short strigose), adaxial ± densely strigose; basal and proximal cauline long-petiolate, petioles not to narrowly winged, sheathing, blades ovate, 50–200 × 30–120 mm, bases shallowly cordate to rounded; cauline shortly, broadly winged-petiolate to subpetiolate or sessile, ovate or elliptic to lanceolate or oblanceolate, 13–122 × 6–55 mm, gradually reduced distally, bases auriculate, not clasping, or cuneate to winged-attenuate; distal (arrays) sessile, obovate or oblong to lanceolate, 10–32 × 4–10 mm, bases rounded to attenuate, apices obtuse to rounded or acute. Heads 3–10+ in loose, flat-topped, corymbiform arrays. Peduncles densely strigose, sometimes sparsely stipitate-glandular distally; bracts 0–2, broad, densely strigose. Involucres campanulate, 7–12 mm, shorter than pappi. Phyllaries 46–75 (–90) in 5–7 series, oblong-lanceolate (outer) to linear-lanceolate (inner), strongly unequal, membranous, bases indurate, rounded (outer), green zones in distal 1/3–1/2 foliaceous (outer) or 0 (innermost), margins hyaline, narrowly scarious, erose, ciliate, apices ± squarrose or reflexed, obtuse to acute and mucronulate (outer) or acuminate (inner), faces strigoso-villous to strigillose, eglandular. Ray-florets (7–) 16–20 (–30); corollas white to lavender, 10–15 × 1.4–2.1 mm. Disc-florets 20–40; corollas pale-yellow, becoming purplish-tinged on lobes, funnelform, slightly ampliate, 6–7.5 mm, tubes longer than throats, lobes spreading, lanceolate, 1–1.5 mm. Cypselae reddish-brown to brown, fusiform, compressed, 3–4 mm, ribs 7–12, faces sparsely strigillose; pappi of cinnamon (apically clavate) bristles, equaling disc corollas. 2n = 18.


Phenology: Flowering late summer–early fall.
Habitat: Deciduous or mixed deciduous woods, on slopes or alluvial plains, usually on basic or circumneutral soils, Piedmont Plateau
Elevation: 100–300 m

Discussion

Of conservation concern.

Eurybia mirabilis is infrequent throughout its range. It has been reported for Alabama and Georgia but no specimens were seen. Such reports may be based on specimens of E. jonesiae identified as Aster commixtus. Both species have been so identified.

Selected References

None.

Lower Taxa

None.

"broad" is not a number."[" is not declared as a valid unit of measurement for this property."]" is not declared as a valid unit of measurement for this property.

... more about "Eurybia mirabilis"
not tailed +, rounded +  and obtuse +
distinct +
reflexed +  and squarrose +
acuminate;mucronulate;obtuse;acute +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
flat-topped +
Luc Brouillet +
(Torrey & A. Gray) G. L. Nesom +
rounded +  and attenuate +
indurate +
Aster mirabilis +
reduced +
rugulose +  and muricate +
barbellulate +  and barbellate +
1.3 cm13 mm <br />0.013 m <br /> (12.2 cm122 mm <br />0.122 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
stipitate-glandular +
Bouquet aster +
not 2-lipped +  and actinomorphic +
purplish-tinged +, pale-yellow +, white +  and lavender +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
ampliate +
0.6 cm6 mm <br />0.006 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
7-12(-18)-nerved +
beaked +, 2-ribbed +  and 5-ribbed +
reddish-brown +  and brown +
compressed +  and fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
1 cm10 mm <br />0.01 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
N.C. +  and S.C. +
100–300 m +
strigillose +  and strigoso-villous +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Deciduous or mixed deciduous woods, on slopes or alluvial plains, usually on basic or circumneutral soils, Piedmont Plateau +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1.4 cm14 mm <br />0.014 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
campanulate +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
lanceolate +
scabrous to strigoso-ciliate +
2-carpellate +
barbellulate +  and barbellate +
pinkish +, yellowish +, tan +, tawny +  and cinnamon +
persistent +
unequal +
stipitate-glandular +  and strigose +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
3 cm30 mm <br />0.03 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Flowering late summer–early fall. +
oblong-lanceolate +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
7 +  and 12 +
exalbuminous +
Endemic +  and Conservation concern +
flexuous +
strigose +  and glabrescent +
1 +  and 3 +
appendaged +  and truncate +
papillate +  and smooth +
Compositae +
Eurybia mirabilis +
species +
mucronate +
ampliate +
cauline +  and proximal +
10 cm100 mm <br />0.1 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
plant +, in clumps +  and colonial +
scarious +