Oclemena reticulata

(Pursh) G. L. Nesom

Phytologia 77: 264. 1995.

Common names: Pinebarren or pinebarren whitetop aster
Endemic
Basionym: Aster reticulatus Pursh Fl. Amer. Sept. 2: 458. 1813
Synonyms: Aster dichotomus Elliott Chrysopsis obovata Nuttall Diplopappus obovatus (Nuttall) Torrey & A. Gray Diplostephium dichotomum (Elliott) de Candolle Doellingeria obovata (Nuttall) Nees Doellingeria reticulata (Pursh) Greene
Treatment appears in FNA Volume 20. Treatment on page 79. Mentioned on page 43, 78.

Plants 30–90 cm (cespitose or densely clonal; caudices superficial, woody, branched, and deep, rhizomes short to long, herbaceous or woody). Stems 1–4+, erect, stout (2–4 mm diam.), straight, simple, densely villosulous, ± glandular distally. Leaves 12–30, regularly distributed, proximal sometimes withering by flowering; sessile to short-petiolate (petioles 1–2 mm); blades obovate-elliptic or ovate-elliptic to elliptic-oblong, 25–110 × 10–40 mm, bases cuneate to rounded, margins revolute, ± undulate, entire or serrate distally, teeth coarse, ± obtuse, apices acute to obtuse, mucronate, faces densely villosulo-puberulent, stipitate-glandular, adaxial more so, array leaves reduced distally. Heads (3–) 9–40 (–67) in corymbiform arrays, branches strongly ascending, at acute angles with stems. Peduncles stout, 2–5 cm, ± densely villosulous, stipitate-glandular. Involucres 4.8–7.2 mm. Phyllaries lanceovate (outer) to lance-linear (inner), ± pilose, gland-dotted; bracts 0–1 (–2), linear, villosulous-puberulent. Ray-florets (5–) 7–11 (–14); corollas white to pinkish, (10–) 11.5–17 (–19) × (0.8–) 1–1.8 (–2.2) mm. Disc-florets (10–) 15–30 (–35); corollas slightly ampliate, 5–8 mm, sparsely glandular; tubes longer than narrowly campanulate throats, strigillose, lobes slightly spreading, lanceolate, 2–4 mm. Cypselae tan, fusiform, ± compressed, (1.5–) 2–4.2 mm, ribs 6–8 (lighter than bodies), faces strigillose, gland-dotted; pappi of whitish bristles in 3 series, ± equal to disc corollas (innermost ± clavate). 2n = 18.


Phenology: Flowering spring(–summer in damaged plants).
Habitat: Moist (at least seasonally) sandy places, bogs, wet pine flatwoods, cypress pond margins, roadside cuts, burns
Elevation: 0–50 m

Discussion

Oclemena reticulata is a southern Atlantic coastal plain element and is a facultative wetland indicator. Although most often grouped with Doellingeria, its distinctness can be perceived in the morphometric study by J. C. Semple et al. (1991), who provided a full synonymy for the species.

Selected References

None.

Lower Taxa

None.

"[" is not declared as a valid unit of measurement for this property."]" is not declared as a valid unit of measurement for this property.

... more about "Oclemena reticulata"
stipitate-glandular +, puberulent +  and glabrous +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Luc Brouillet +
(Pursh) G. L. Nesom +
cuneate +  and rounded +
not indurate +
Aster reticulatus +
compound +  and simple +
2.5 cm25 mm <br />0.025 m <br /> (11 cm110 mm <br />0.11 m <br />) +
mid +  and proximal +
ovate-elliptic;elliptic-oblong +
reduced +  and largest +
10mm;40mm +
rugulose +  and muricate +
villosulous-puberulent +
? (?) +  and ? (?) +
Pinebarren or pinebarren whitetop aster +
not 2-lipped +  and actinomorphic +
1.7 cm17 mm <br />0.017 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
white +  and pinkish +
1.15 cm11.5 mm <br />0.0115 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
ampliate +
shorter to longer +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
compressed +  and fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
Ala. +, Fla. +, Ga. +  and S.C. +
0–50 m +
gland-dotted +
strigillose +, stipitate-glandular +  and villosulo-puberulent +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Moist (at least seasonally) sandy places, bogs, wet pine flatwoods, cypress pond margins, roadside cuts, burns +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
cylindro-campanulate +
0.48 cm4.8 mm <br />0.0048 m <br /> (0.72 cm7.2 mm <br />0.0072 m <br />) +
short-petiolate +  and sessile +
distributed +
12 (?) +  and 30 (?) +
reduced +
lanceolate +
serrate +  and entire +
undulate +
2-carpellate +
persistent +
stipitate-glandular +  and villosulous +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flowering spring(–summer in damaged plants). +
lanceovate +  and lance-linear +
sessile +  and short-petiolate +
bearing subulate enations +, hairy +  and bristly +
planoconvex +
6 +  and 8 +
fleshy +  and fibrous +
exalbuminous +
straight +
1 +  and 4 +
appendaged +  and truncate +
papillate +  and smooth +
Aster dichotomus +, Chrysopsis obovata +, Diplopappus obovatus +, Diplostephium dichotomum +, Doellingeria obovata +  and Doellingeria reticulata +
Oclemena reticulata +
Oclemena +
species +
campanulate +
strigillose +
ampliate +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
5 cm50 mm <br />0.05 m <br /> (90 cm900 mm <br />0.9 m <br />) +