Symphyotrichum fontinale

(Alexander) G. L. Nesom

Phytologia 77: 287. 1995.

Common names: Florida water aster
EndemicConservation concern
Basionym: Aster fontialis Alexander in J. K. Small, Man. S.E. Fl., 1382, 1509. 1933
Synonyms: Aster patens var. floridanus R. W. Long
Treatment appears in FNA Volume 20. Treatment on page 487. Mentioned on page 472.

Perennials, 30–90 cm, colonial; long-rhizomatous. Stems 1–5+, erect (light to reddish-brown, straight, sometimes stout), proximally moderately to densely hispidulo-strigillose, sometimes glabrescent, distally moderately to densely hispidulo-strigillose, sometimes sparsely stipitate-glandular. Leaves (green to dark green) firm, margins entire, faces sparsely to moderately strigoso-scabrous, sometimes sparsely stipitate-glandular; basal absent at flowering, sessile, blades (3-nerved) oblanceolate to obovate, 25–40 × 12–15 mm, bases attenuate, margins entire (remotely serrate), scabrous, apices obtuse, short-mucronate; proximal cauline usually withering by flowering, sessile, blades obovate to oblanceolate, 25–80 × 5–18 mm, bases rounded or narrowly auriculate-clasping, margins distally shallowly serrate to subentire, scabrellous, apices spinulose-mucronate; distal sessile, blades lanceolate or oblanceolate to oblong-lanceolate, 5–50 × 2–10 mm, reduced distally and becoming bractlike (arrays), bases subclasping to (distally) rounded, margins scabrous, apices acute to white-mucronulate or subspinulose, faces sometimes shiny, minutely gland-dotted. Heads (4–400) in wide to narrow, paniculiform arrays, branches ascending to widely spreading (well-developed), densely small-leaved. Peduncles ascending (secund in well-developed arrays?), 0.3–4.5 cm, densely strigoso-hirsute, sometimes sparsely stipitate-glandular, bracts dense, spreading or reflexed (rarely ascending), narrowly oblong to linear-lanceolate, mostly ca. 3 × 1 mm, spinulose, sparsely to moderately strigilloso-scabrous, sometimes sparsely minutely stipitate-glandular, grading into phyllaries. Involucres cylindro-campanulate, 6–7.6 mm. Phyllaries in 4–5 series (appressed), oblong or oblanceolate (outer) to linear-oblanceolate (innermost), unequal, bases indurate, margins hyaline, scarious, erose, ciliate or ciliolate, and/or sometimes stipitate-glandular, often reddish distally, green zones elliptic (outer) to lanceolate, apices erect, acute to acuminate, mucronulate to apiculate (inner), often tinged red-purplish, faces glabrous or glabrate. Ray-florets 15–30; corollas purplish-blue to lavender, laminae 7–13 × 0.8–2 mm. Disc-florets 19-25; corollas cream to pale-yellow turning reddish purple, sometimes also brownish, 5.2–6 mm, tubes slightly shorter than funnelform throats, lobes lanceolate to triangular, 0.8–1.2 mm. Cypselae tan, obovoid-fusiform, slightly compressed, 1.9–2.3 mm, 4–5-nerved (golden bronze), faces sparsely strigillose to glabrescent; pappi sordid, 5–6.2 mm.


Phenology: Flowering Nov–Dec.
Habitat: Moist, sometimes peaty soils, marshes, sandhills, hammocks, flood plains, ditch banks, rocky bluffs along streams
Elevation: 0–50 m

Discussion

Of conservation concern.

Symphyotrichum fontinale has been considered to be conspecific with S. patens or S. dumosum of subg. Symphyotrichum (A. Cronquist 1980). It fits well into sect. Grandiflori of subg. Virgulus.

Selected References

None.

Lower Taxa

None.
... more about "Symphyotrichum fontinale"
not tailed +, rounded +  and obtuse +
subspinulose +  and sessile +
auriculate-clasping +
tinged red-purplish +
distinct +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
scabrellous +
subequal +
scarious +
12mm +  and 15mm +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
wide +  and narrow +
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(Alexander) G. L. Nesom +
subclasping +  and sessile +
2.5 cm25 mm <br />0.025 m <br /> (8 cm80 mm <br />0.08 m <br />) +
scabrellous +
rounded +, distally shallowly serrate +  and subentire +
indurate +
5mm;18mm +
Aster fontialis +
0.5 cm5 mm <br />0.005 m <br /> (5 cm50 mm <br />0.05 m <br />) +
scabrellous +
bractlike;oblanceolate;oblong-lanceolate +
reduced +
2mm;10mm +
rugulose +  and muricate +
3 cm30 mm <br />0.03 m <br /> (?) +
reflexed +  and spreading +
stipitate-glandular +
strigilloso-scabrous +
narrowly oblong +  and linear-lanceolate +
1 cm10 mm <br />0.01 m <br /> (?) +
ascending;widely spreading +
barbellulate +  and barbellate +
Florida water aster +
not 2-lipped +  and actinomorphic +
brownish +, cream +  and pale-yellow turning reddish purple +
at maturity , more or less ampliate , tubes usually shorter +
0.52 cm5.2 mm <br />0.0052 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +  and obovoid-fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
0–50 m +
gland-dotted +
sparsely strigillose +  and glabrescent +
strigoso-scabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Moist, sometimes peaty soils, marshes, sandhills, hammocks, flood plains, ditch banks, rocky bluffs along streams +
disciform +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
cylindro-campanulate +
0.6 cm6 mm <br />0.006 m <br /> (0.76 cm7.6 mm <br />0.0076 m <br />) +
2.4 cm24 mm <br />0.024 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.8mm;2mm +
sessile +  and petiolate +
cauline +  and basal +
decurrent +
lanceolate +  and triangular +
reddish +  and hyaline +
25mm;40mm +
stipitate-glandular +, ciliolate +  and ciliate +
scabrellous +
spinulose-mucronate +, distally shallowly serrate +  and subentire +
12mm +  and 15mm +
2-carpellate +
persistent +
25 +  and 40 +
0.5 cm5 mm <br />0.005 m <br /> (0.62 cm6.2 mm <br />0.0062 m <br />) +
stipitate-glandular +  and strigoso-hirsute +
0.3 cm3 mm <br />0.003 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Flowering Nov–Dec. +
oblanceolate +  and linear-oblanceolate +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
exalbuminous +
Endemic +  and Conservation concern +
branched +  and simple +
1 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Aster patens var. floridanus +
Symphyotrichum fontinale +
Symphyotrichum subg. Virgulus +
species +
ampliate +
stipitate-glandular +
30 cm300 mm <br />0.3 m <br /> (90 cm900 mm <br />0.9 m <br />) +
tree +, shrub +  and subshrub +
elliptic +  and lanceolate +