Symphyotrichum simmondsii

(Small) G. L. Nesom

Phytologia 77: 291. 1995.

Common names: Simmonds’s aster
Endemic
Basionym: Aster simmondsii Small Fl. Miami, 190, 200. 1913
Treatment appears in FNA Volume 20. Treatment on page 514. Mentioned on page 475, 477, 501, 515.

Perennials, 10–120 cm, colonial (sometimes extensively); long-rhizomatous. Stems 1–3+, erect (straight, rigid, sometimes stout), sparsely scabrellous or glabrescent to glabrate or glabrous. Leaves firm, margins recurved, scabrous to scabrellous, apices acute to acuminate, mucronulate, abaxial faces pilosulous to glabrate or glabrous, midveins marked, adaxial scabridulous; basal withering by flowering, petiolate (petioles winged, bases sheathing), blades oblanceolate, 26–80 × 6–16 mm, bases attenuate, margins serrate, apices obtuse to acute; proximal cauline mostly withering by flowering, petiolate to subpetiolate (petioles winged, sheathing to clasping), blades elliptic to oblanceolate or lanceolate or lanceolate-linear to sometimes linear, 45–70+ × 8–15 mm, bases attenuate to cuneate, margins serrate or crenate-serrate or entire; distal (erect or spreading) sessile, blades lanceolate or oblanceolate to linear, 10–120 × 5–8 mm, reduced distally, sharply so on array branches, bases attenuate to cuneate, margins serrulate or entire. Heads in racemiform to usually open, sometimes ± lax, paniculiform arrays, rarely borne singly, branches ascending to spreading, often straggling and arched, ± leafy (each usually with 10+ heads), secondaries sometimes erect and secund-like. Peduncles 0.3–6+ cm, irregular in length along branches, sometimes distally reduced, glabrate to sparsely scabridulous, bracts 7–12+, spreading to ascending, abruptly reduced distally, grading into phyllaries. Involucres campanulate to campanulo-turbinate, (4.5–) 6–8 mm. Phyllaries in 5–6 series, oblong-lanceolate to linear-lanceolate or lanceolate (innermost), strongly unequal, bases indurate 1/2–4/5, margins narrowly scarious, distally erose, hyaline, ciliolate, green zones oblanceolate (outer sometimes ± foliaceous), apices acute (inner sometimes acuminate), mucronate, often purplish-tipped, faces glabrous. Ray-florets 18–38; corollas pale lilac or lavender to pale-purple, laminae 9–11 × 0.9–1.7 mm. Disc-florets 24–37; corollas yellow becoming reddish, 4.5–7 mm, tubes shorter than funnelform throats, lobes lanceolate, 0.9–1 mm. Cypselae tan, oblong-obovoid to fusiform-obovoid, compressed, 2–2.6 mm, 4–6-nerved, faces ± strigillose; pappi cream, 4.6–6.5 mm. 2n = 64.


Phenology: Flowering Oct–Jan.
Habitat: Moist or dry soils
Elevation: 0–50 m

Discussion

Symphyotrichum simmondsii is known only from peninsular Florida and the southeastern coastal plain. A report from New Jersey is based on an incomplete specimen and appears doubtful.

Selected References

None.

Lower Taxa

None.

"irregular" is not a number.

... more about "Symphyotrichum simmondsii"
pilosulous +  and glabrate or glabrous +
not tailed +, rounded +  and obtuse +
purplish-tipped +
distinct +
2.6 cm26 mm <br />0.026 m <br /> (8 cm80 mm <br />0.08 m <br />) +
subequal +
scarious +
6mm +  and 16mm +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +, racemiform +  and usually open +
indeterminate +  and determinate +
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(Small) G. L. Nesom +
petiolate +  and subpetiolate +
crenate-serrate +  and serrate +
4.5 cm45 mm <br />0.045 m <br /> (7 cm70 mm <br />0.07 m <br />) +
attenuate +  and cuneate +
indurate +
8mm;15mm +
Aster simmondsii +
petiolate +  and subpetiolate +
1 cm10 mm <br />0.01 m <br /> (12 cm120 mm <br />0.12 m <br />) +
oblanceolate;linear +
reduced +
5mm;8mm +
rugulose +  and muricate +
spreading +  and ascending +
reduced +
barbellulate +  and barbellate +
sessile +  and petiolate +
Simmonds’s aster +
not 2-lipped +  and actinomorphic +
yellow becoming reddish +, lavender +  and pale-purple +
at maturity , more or less ampliate , tubes usually shorter +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
strigillose +  and glabrous +
compressed +, oblong-obovoid +  and fusiform-obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
Fla. +, N.C. +  and S.C. +
0–50 m +
strigillose +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Moist or dry soils +
indeterminate +
ascending +  and spreading +
heterogamous +  and homogamous +
each +  and sessile +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
campanulate;campanulo-turbinate +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
2 (?) +  and 5 (?) +
0.9mm;1.7mm +
sessile +  and petiolate +
cauline +  and basal +
decurrent +
reflexed;spreading;erect +
lanceolate +
petiolate +  and subpetiolate +
entire +, serrulate +, crenate-serrate +  and serrate +
45mm;70mm +
scabrous +  and scabrellous +
attenuate +  and cuneate +
8mm +  and 15mm +
2-carpellate +
persistent +
25 +  and 40 +
0.46 cm4.6 mm <br />0.0046 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
scabridulous +
0.3 cm3 mm <br />0.003 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Flowering Oct–Jan. +
oblong-lanceolate +  and linear-lanceolate or lanceolate +
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 +
1 +  and 3 +
glabrescent to glabrate or glabrous +  and scabrellous +
appendaged +  and truncate +
papillate +  and smooth +
Aster sect. Heterastrum +  and Aster subg. Symphyotrichum +
Symphyotrichum simmondsii +
Symphyotrichum sect. Symphyotrichum +
species +
funnelform-campanulate +  and cylindric +
ampliate +
10 cm100 mm <br />0.1 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
tree +, shrub +  and subshrub +
oblanceolate +