Eurybia jonesiae
Eurybia paludosa
Jones' aster
southern swamp aster
1, erect, simple, straight to slightly flexuous, glabrous or sparsely villosulous proximally, increasingly villosulous distally.
1–10+, erect, often reddish, simple, straight (brittle), proximally glabrous, glabrescent, or sparsely strigillose, distally strigillose or ± villoso-hirsute (at least in arrays).
basal and cauline, margins serrate, scabrous, apices usually acute, sometimes acuminate, mucronate, faces scabrous, abaxial sparsely villous to strigose with hirsute veins, adaxial strigose;
basal and proximal long-petiolate (to 120 mm), petioles not winged (or rarely so), hirsute and ciliate, blades widely ovate to ovate or lanceolate, 80–190 × 50–110 mm, bases usually cordate, subcordate, or rounded, sometimes cuneate;
cauline short-petiolate (to 50 mm) to subpetiolate or sessile (arrays), petioles gradually winged distally, blades ovate to lance-ovate, 20–60 × 8–30 mm, reduced distally, bases rounded to cuneate.
basal and cauline, firm, only midnerves evident, margins indurate, entire or sometimes remotely spinulose-serrate, scabrous, spines indurate, ± pronounced, apices mucronate or indurate, abaxial faces glabrous or scabrous, adaxial sparsely hirtellous, distal often more hairy;
basal and proximalmost cauline withering by flowering, petioles (often marcescent, to 20 mm), bases sheathing, blades elliptic to lanceolate (basal) or linear-lanceolate, ± arcuate (proximal), 15–103 × 5–9 mm, bases cuneate, apices obtuse (basal) to acute;
cauline progressively sessile (petioles more winged) and reduced, blades lanceolate or linear-lanceolate to linear, ± arcuate, 18–132+ × 2–6 mm, margins sometimes revolute, apices acute.
0.4–1.6 cm, villous;
bracts single or a second midway.
ascending, usually mostly 1–10+ cm (seldom not elongating, sometimes those of young heads appearing short or absent), thin, hirtello-puberulent to villoso-hirsute;
bracts 2–5, often 1–2 subtending heads, sometimes phyllary-like (bases pale, indurate).
cylindro-campanulate, 10–13 mm, equaling or longer than pappi.
campanulate, 9–11 mm, much shorter than pappi.
7–15;
corollas whitish to cream-colored, becoming purple, 15–20 × 1–2 mm.
15–35;
corollas deep lavender to purple, (10–)15–20 × 1–2.3 mm.
20–25;
corollas yellow, slightly ampliate, 6.5–8.5 mm, tubes longer than funnelform throats, lobes ± reflexed, lanceolate, 1–1.2 mm.
25–60;
corollas yellow, 5.5–7 mm, slightly ampliate, tubes much shorter than cylindro-funnelform throats, lobes spreading, lanceolate-acuminate, 0.75–1.1 mm.
36–50 in 4–5 series, ovate, elliptic, or lanceolate to linear (outer 3 × 1.5 mm, inner 13 × 0.7 mm), strongly unequal, bases indurate, green zones ± lanceolate to linear along midnerves (inner), 1/4–3/4 width, subapical (rarely outer foliaceous), margins hyaline, erose, ciliate, apices squarrose, acute to long-acuminate (inner hyaline), abaxial faces ± villosulous, adaxial glabrous.
40–65+ in 4–5 series, lanceolate or oblong (outer) to linear-oblanceolate or linear (inner), unequal, membranous, bases indurate, rounded (particularly outer), green zones well defined, slightly expanded in distal 1/3–2/3 (foliaceous), reaching margins (outer wholly foliaceous, outermost are bracts subtending heads) to 1/6 or less and not reaching margins or none (inner), margins sometimes distally purplish (particularly inner), indurate, narrowly scarious, erose proximally to nearly completely so (inner), densely ciliate proximally (scarious part) to distally scabrous (foliaceous part), apices loose and often spreading, sometimes squarrose, obtuse to sometimes acute, mucronate, faces sparsely to densely strigillose.
4–80 in flat-topped, corymbiform arrays.
(1–)4–10+ in open, corymbiform arrays, seldom borne singly, with ascending branches.
brown, fusiform, ± compressed, 3–4 mm, ribs 7–9, tan, prominent, crowded, faces strigillose;
pappi of cinnamon (sometimes ± clavate) bristles, ± equaling disc corollas.
stramineous to tawny, cylindric to narrowly obovoid, slightly compressed, 2.3–3.6 mm, ribs 10–16, sparsely strigillose;
pappi of stramineous (firm, sometimes apically clavellate) bristles 5–6.7 mm, ± equaling disc corollas.
= 54.
= 36.
Eurybia jonesiae
Eurybia paludosa
A number of specimens from Alabama and Georgia identified as Aster commixtus are this species (see also W. F. Lamboy 1988).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Eurybia paludosa is often confused with E. hemispherica, with which it is closely related. It is present on the Atlantic coastal plain from North Carolina to northeastern Florida. The two species are disjunct geographically and ecologically, even when they occur in the same states. In North Carolina, for instance, E. paludosa is coastal while E. hemispherica is found in the mountains. In northern Florida, the former is found only in Nassau County, while the latter is present only in the western panhandle. Their ranges do not overlap.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
WildflowerSearch
iNaturalist
USDA Plants Database
