Eurybia spectabilis

(Aiton) G. L. Nesom

Phytologia 77: 262. 1995.

Common names: Eastern showy aster
Endemic
Basionym: Aster spectabilis Aiton Hort. Kew. 3: 209. 1789
Synonyms: Aster commixtus (Nees) Kuntze Aster spectabilis var. suffultus Fernald Biotia commixta Nees Eurybia commixta
Treatment appears in FNA Volume 20. Treatment on page 378. Mentioned on page 367, 377.

Plants 10–90 cm; forming clones and clumps with rosettes, new shoots at end of rhizomes and bases of old stems; rhizomes elongate, scaly, herbaceous becoming woody. Stems 1–3, erect or sometimes ascending, straight, often stout, sometimes glabrous or glabrescent, usually ± sparsely villous proximally and/or distally, proximally eglandular to ± short-stipitate-glandular, distally glandular from 1/2–2/3, short and long-stipitate-glandular in arrays. Leaves basal and cauline, firm (reticulately veined), margins slightly revolute, indurate, entire or remotely crenulate-serrulate, scabrous, teeth indurate, apices acute (seldom basal obtuse), indurate, faces usually scabrous (especially abaxially), sometimes glabrous; basal and proximal cauline persistent, petioles (10–90 mm) ± narrowly winged (wings wider and shorter distally), bases sometimes marcescent, blades lanceolate or elliptic to ovate or obovate-elliptic or spatulate, 10–160 × 3–40 mm (earlier leaves smallest), bases attenuate; mid widely winged-petiolate to subpetiolate or sessile, blades elliptic-lanceolate, ovate, or ± narrowly obovate to spatulate, oblanceolate, or lanceolate, 13–105 × (2–) 5–30 mm, ± gradually reduced distally, bases attenuate or cuneate, sometimes ± clasping or sheathing (proximal); distal (arrays) sessile, oblong or narrowly ovate to linear-lanceolate or linear, 6–40 × 1–11 mm, usually abruptly reduced, becoming ± glandular. Heads (1–) 3–35+ usually in open, corymbiform arrays, seldom borne singly, branches ascending, stout. Peduncles sometimes sparsely villous, densely stipitate-glandular; bracts (0–) 1–3, leaflike or sometimes phyllary-like (bases rounded, membranous, indurate), sometimes immediately subtending heads, densely stipitate-glandular. Involucres campanulate, 7.5–14 (–16) mm, ± equaling pappi. Phyllaries 35–70 in 5–6 series, oblong-lanceolate to sometimes spatulate (outer) to linear-lanceolate or linear (inner), unequal, membranous or sometimes foliaceous (outer), bases indurate, rounded (outer), green zones expanded, ovate to obovate (outer, sometimes foliaceous to base) or diffusely lanceolate or none (inner), margins of membranous parts hyaline or ± purplish (inner), narrowly scarious, villoso-ciliate or long-stipitate-glandular, of foliaceous parts ± indurate, scabrous or short-stipitate-glandular, apices squarrose (outer) to ± appressed (innermost), acute to obtuse, adaxial faces long-stipitate-glandular (foliaceous parts). Ray-florets 15–35; corollas violet-purple, 12–25 × 1.6–4 mm. Disc-florets 25–55; corollas yellow, 5.5–7.6 mm, ± ampliate, tubes shorter than funnelform throats, lobes erect, lanceolate, 0.7–1.2 mm. Cypselae brown, fusiform, slightly compressed, 3–4.2 mm, ribs 12–14, faces densely strigillose; pappi of reddish-tawnish bristles 5.3–7.6 mm, ± equaling disc corollas. 2n = 72.


Phenology: Flowering fall.
Habitat: Mostly sandy soils, sometimes dry clay, granite outcrops, dry, oak-pine woods, pine barrens, peat bogs, borders of woods, clearings, fields, roadsides
Elevation: 0–900 m

Distribution

V20-865-distribution-map.gif

Ala., Conn., Del., Ga., Md., Mass., N.J., N.Y., N.C., Pa., R.I., S.C., Va.

Discussion

Eurybia spectabilis is of conservation concern in much of its range, notably in Pennsylvania, Delaware, and Maryland. It is an eastern coastal plains species that reaches its southern limit in Alabama and Georgia.

Selected References

None.

Lower Taxa

None.

"[" 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 spectabilis"
long-stipitate-glandular +
not tailed +, rounded +  and obtuse +
distinct +
squarrose +  and more or less appressed +
acute;obtuse +
subequal +
indurate +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Luc Brouillet +
(Aiton) G. L. Nesom +
sheathing +  and clasping +
marcescent +
rounded +, cuneate +  and attenuate +
indurate +
Aster spectabilis +
compound +  and simple +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (10.5 cm105 mm <br />0.105 m <br />) +
more or less narrowly obovate;spatulate oblanceolate or lanceolate +
reduced +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
rugulose +  and muricate +
phyllary-like +
stipitate-glandular +
barbellulate +  and barbellate +
reddish-tawnish +
0.53 cm5.3 mm <br />0.0053 m <br /> (0.76 cm7.6 mm <br />0.0076 m <br />) +
Eastern showy aster +
not 2-lipped +  and actinomorphic +
1.2 cm12 mm <br />0.012 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
ampliate +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.76 cm7.6 mm <br />0.0076 m <br />) +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
7-12(-18)-nerved +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +  and fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
0.6 cm6 mm <br />0.006 m <br /> (4 cm40 mm <br />0.04 m <br />) +
narrowly ovate;linear-lanceolate or linear +
0.1 cm1 mm <br />0.001 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Ala. +, Conn. +, Del. +, Ga. +, Md. +, Mass. +, N.J. +, N.Y. +, N.C. +, Pa. +, R.I. +, S.C. +  and Va. +
0–900 m +
strigillose +  and glabrous +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Mostly sandy soils, sometimes dry clay, granite outcrops, dry, oak-pine woods, pine barrens, peat bogs, borders of woods, clearings, fields, roadsides +
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 />) +
1.4 cm14 mm <br />0.014 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
campanulate +
0.75 cm7.5 mm <br />0.0075 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
lanceolate +
crenulate-serrulate +  and entire +
purplish +  and hyaline +
short-stipitate-glandular +, scabrous +, long-stipitate-glandular +  and villoso-ciliate +
indurate +  and scarious +
2-carpellate +
barbellulate +  and barbellate +
pinkish +, yellowish +, tan +, tawny +  and cinnamon +
persistent +
unequal +
membranous +
stipitate-glandular +  and villous +
Flowering fall. +
spatulate +  and linear-lanceolate or linear +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
12 +  and 14 +
exalbuminous +
straight +
ascending +  and erect +
long-stipitate-glandular +, short-stipitate-glandular +, villous +, glabrescent +  and glabrous +
1 +  and 3 +
appendaged +  and truncate +
papillate +  and smooth +
Aster commixtus +, Aster spectabilis var. suffultus +, Biotia commixta +  and Eurybia commixta +
Eurybia spectabilis +
species +
ampliate +
widely winged-petiolate +  and subpetiolate or sessile +
cauline +  and proximal +
10 cm100 mm <br />0.1 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
ovate +  and obovate or diffusely lanceolate +
expanded +