Eurybia mirabilis
Eurybia saxicastelli
bouquet aster
rockcastle aster
1–3+, erect, slightly flexuous, simple, sparsely strigose proximally or glabrescent, densely strigose distally.
1, erect, strict (slightly flexuous distally), simple, glabrous, distally ± villosulous (arrays).
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.
cauline;
proximal withering by flowering, narrowly winged-petiolate, blades broadly oblanceolate or elliptic to obovate, smaller than mid;
mid and distal winged-petiolate (5–30 mm), broadly elliptic to oblanceolate, (70–)90–140 × 40–50(–60) mm, reduced distally, bases cuneate, with 4–5 pairs of marked veins, margins coarsely serrate (teeth 1–4 mm), slightly revolute, scabrous, apices acuminate;
abaxial faces glabrescent, adaxial sparsely pilose, mainly on veins.
densely strigose, sometimes sparsely stipitate-glandular distally;
bracts 0–2, broad, densely strigose.
sparsely pilose;
bracts 0–1, foliaceous, remotely serrulate.
campanulate, 7–12 mm, shorter than pappi.
campanulate, 7–11 mm, shorter than pappi.
(7–)16–20(–30);
corollas white to lavender, 10–15 × 1.4–2.1 mm.
10–30;
corollas pale white to pale blue, 10–15 × 1.5–2 mm.
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.
10–20;
corollas yellow turning pinkish, ca. 4.5–5 mm, tubes longer than funnelform throats, lobes spreading, triangular, ca. 1.5 mm.
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.
32–36 in 4–5 series, broadly oblong, strongly unequal, scarious, dark green zones wide, from 1/2 distally, margins hyaline, narrow, erose, densely ciliate, apices appressed or often slightly squarrose, obtuse to subacute, faces glabrous, eglandular.
3–10+ in loose, flat-topped, corymbiform arrays.
1–10, borne singly or in corymbiform arrays.
reddish brown to brown, fusiform, compressed, 3–4 mm, ribs 7–12, faces sparsely strigillose;
pappi of cinnamon (apically clavate) bristles, equaling disc corollas.
tan, fusiform, cylindric, 5–6 mm, ribs 7–11, stramineous, faces ± strigose;
pappi of pale stramineous (clavate) bristles 5–7 mm, shorter than to ± equaling disc corollas.
= 18.
= 54.
Eurybia mirabilis
Eurybia saxicastelli
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.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Of conservation concern.
Eurybia saxicastelli is known only from the Rockcastle River of Kentucky (J. J. N. Campbell and M. E. Medley 1989) and Tennessee.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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