Endemic
Synonyms: Aster subulatus var. obtusifolius
Treatment appears in FNA Volume 20. Treatment on page 482. Mentioned on page 481.

Plants 30–120 (–150) cm. Stems simple. Heads (10–) 30–100 (–150), in elongate, pyramidal, much branched arrays. Involucres (5–) 6–7 (–8.2) mm. Phyllaries 20–30, subulate to lanceolate, narrow, green zones narrowly to broadly lanceolate, extending phyllary length. Ray-florets 16–30 in 2 series; laminae white (drying white or lavender), (1.3–) 1.5–2.6 (–3.1) × 0.2–0.5 mm, shorter to slightly longer than pappi, drying in 0–1 coil (apices often deeply lobed). Disc-florets 4–10 (–13); corollas 3.8–4.6 (–4.9) mm. Cypselae (1.2–) 1.5–2.5 mm; pappi (3.5–) 4–5.5 mm. 2n = 10.


Phenology: Flowering midsummer–autumn(–winter).
Habitat: Salt marshes, brackish marshes, tidal marshes, salted highways
Elevation: 0 (100–300 inland) m

Distribution

V20-1085-distribution-map.gif

N.B., Ont., Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., La., Maine, Md., Mass., Mich., Miss., Nebr., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tex., Va., in Asia, Africa

Discussion

Variety subulatum is disjunct in northern New Brunswick. It is apparently introduced around salt mines and other salted habitats in Ontario, Michigan, and Ohio.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
pyramidal +  and elongate +
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
(Michaux) G. L. Nesom +
sessile +, subpetiolate +, petiolate +  and long-petiolate +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
subentire +, attenuate +, subulate +, lanceolate +, rounded +  and cuneate +
indurate +
1.5mm;10mm +
Aster subulatus +
sessile +, subpetiolate +, petiolate +  and long-petiolate +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (11.3 cm113 mm <br />0.113 m <br />) +
narrowly lanceolate;subulate +
0.5mm;5.5mm +
rugulose +  and muricate +
barbellulate +  and barbellate +
sessile +  and subpetiolate +
not 2-lipped +  and actinomorphic +
0.46 cm4.6 mm <br />0.0046 m <br /> (0.49 cm4.9 mm <br />0.0049 m <br />) +
tinged with purple +, lavender +, pink +  and white +
at maturity , more or less ampliate , tubes usually shorter +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
light-brown +  and purple +
glabrate +  and strigillose +
compressed +, narrowly obovoid +  and fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
N.B. +, Ont. +, Ala. +, Ark. +, Conn. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Miss. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, Tex. +, Va. +, in Asia +  and Africa +
0 (100–300 inland) m +
strigillose +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Salt marshes, brackish marshes, tidal marshes, salted highways +
disciform +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.7 cm7 mm <br />0.007 m <br /> (0.82 cm8.2 mm <br />0.0082 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
cylindric;turbinate +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.26 cm2.6 mm <br />0.0026 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
1.5mm;2.6mm +
slightly longer +
shorter to slightly +
0.2mm;0.5mm +
sessile +  and petiolate +
cauline +  and basal +
decurrent +
less spreading;erect +
triangular +
sessile +, subpetiolate +, petiolate +  and long-petiolate +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
purple-tinged +  and hyaline +
20mm;100mm +
strigilloso-ciliolate +
subentire +, attenuate +, subulate +, lanceolate +, rounded +  and cuneate +
1.5mm +  and 10mm +
2-carpellate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
persistent +
25 +  and 40 +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering midsummer–autumn(–winter). +
subulate +  and lanceolate +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
exalbuminous +
not brittle +
appendaged +  and truncate +
papillate +  and smooth +
Aster subulatus var. obtusifolius +
Symphyotrichum subulatum var. subulatum +
Symphyotrichum subulatum +
variety +
at maturity , more or less ampliate , tubes usually shorter +
ampliate +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
30 cm300 mm <br />0.3 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
lanceolate +