Symphyotrichum subulatum var. ligulatum

S. D. Sundberg

Sida 21: 907. 2004.

Common names: Saltmarsh or southern annual saltmarsh aster
Basionym: Aster subulatus var. ligulatus Shinners Field & Lab. 21: 159. 1953
Synonyms: Symphyotrichum divaricatum (Nuttall) G. L. Nesom
Treatment appears in FNA Volume 20. Treatment on page 481.

Plants (10–) 60–200 cm. Stems usually simple, sometimes branched proximally. Heads 15–120, in open, diffuse arrays, secund on primary branches longer than peduncles. Involucres (5.2–) 6–6.9 mm. Phyllaries 25–45 (–62), subulate to lanceolate, narrow, green zones narrowly lanceolate. Ray-florets 17–30 (–45) in 1 series; laminae lavender to blue, (3.5–) 4.5–7 × 0.9–1.3 mm, longer than pappi, drying in 3–5 coils (apices shallowly lobed). Disc-florets (20–) 33–50; corollas 3.7–4.5 (–5) mm. Cypselae (1.3–) 1.7–2.5 (–2.9) mm; pappi (3–) 3.5–4.6 mm. 2n = 10.


Phenology: Flowering Jul–Nov(–Feb).
Habitat: Marshy habitats, often weedy, roadsides, lawns, waste places
Elevation: 0–1500 m

Distribution

V20-1082-distribution-map.gif

Ala., Ark., Kans., La., Miss., Nebr., N.Mex., Okla., Tenn., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Tamaulipas)

Discussion

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 +
Luc Brouillet +, John C. Semple +, Geraldine A. Allen +, Kenton L. Chambers +  and Scott D. Sundberg† +
S. D. Sundberg +
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 var. ligulatus +
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 +
Saltmarsh or southern annual saltmarsh aster +
not 2-lipped +  and actinomorphic +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
tinged with purple +, lavender +, pink +  and white +
at maturity , more or less ampliate , tubes usually shorter +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.29 cm2.9 mm <br />0.0029 m <br />) +
light-brown +  and purple +
glabrate +  and strigillose +
compressed +, narrowly obovoid +  and fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
Ala. +, Ark. +, Kans. +, La. +, Miss. +, Nebr. +, N.Mex. +, Okla. +, Tenn. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +  and Mexico (Tamaulipas) +
0–1500 m +
strigillose +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Marshy habitats, often weedy, roadsides, lawns, waste places +
in open , diffuse arrays , secund on primary branches longer than peduncles +
indeterminate +
in open , diffuse arrays , secund on primary branches longer than peduncles +
heterogamous +  and homogamous +
each +  and sessile +
0.52 cm5.2 mm <br />0.0052 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 />) +
cylindric;turbinate +
0.6 cm6 mm <br />0.006 m <br /> (0.69 cm6.9 mm <br />0.0069 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
lavender +  and blue +
4.5mm;7mm +
0.9mm;1.3mm +
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 +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
persistent +
25 +  and 40 +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.46 cm4.6 mm <br />0.0046 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 Jul–Nov(–Feb). +
subulate +  and lanceolate +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
exalbuminous +
branched +  and simple +
not brittle +
appendaged +  and truncate +
papillate +  and smooth +
Symphyotrichum divaricatum +
Symphyotrichum subulatum var. ligulatum +
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 +