Ludwigia peploides subsp. glabrescens

(Kuntze) P. H. Raven

Reinwardtia 6: 394. 1964.

Basionym: Jussiaea repens var. glabrescens Kuntze Revis. Gen. Pl. 1: 251. 1891
Synonyms: J. boydiana Featherman Ludwigia peploides var. glabrescens (Kuntze) Shinners
Treatment appears in FNA Volume 10.
Revision as of 20:01, 7 June 2022 by imported>Volume Importer
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Stems glabrous. Leaves alter­nate, usually not fascicled; stipules symmetrical; petioles of basal leaves 0.7–2.5 cm, those of distal leaves 0.7–6 cm; blade (2–) 4–10 cm, apex eglandular-mucronate, surfaces shiny, glabrous. Flowers: anthers subequal, 1.2–1.4 mm; ovary 14–20 mm, apex somewhat broader, glabrous or with scattered hairs, stigma usually exserted beyond anthers, rarely as long as anthers. Capsules 25–40 × 3–4 mm, pedicel 35–90 mm. Seeds 16–18 per locule. 2n = 16.


Phenology: Flowering summer-early fall.
Habitat: Wet places, along slow-moving rivers, streams, canals, ditches, often growing into main channels as aquatic weeds.
Elevation: 0–900[–3000] m.

Distribution

Ala., Ark., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Miss., Mo., Nebr., N.J., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va., South America (Venezuela)

Discussion

Selected References

None.

Lower Taxa

None.
3(-5)-aperturate +
subequal +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
gland-tipped +
with scattered hairs +  and glabrous +
eglandular-mucronate +
broader +
Peter C. Hoch +
(Kuntze) P. H. Raven +
attenuate +  and cuneate +
Jussiaea repens var. glabrescens +
indehiscent +  and loculicidal +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (10 cm100 mm <br />0.1 m <br />) +
lobed +, toothed +  and entire +
elliptic +  and ovate broadly obovate or orbiculate +
reduced +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (4 cm40 mm <br />0.04 m <br />) +
reduced +
dark red +  and black +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
curved +  and straight +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
subterete +  and obscurely 5-angled +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Ala. +, Ark. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Md. +, Miss. +, Mo. +, Nebr. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, W.Va. +  and South America (Venezuela) +
0–900[–3000] m. +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
basifixed +  and versatile +
reflexed +  and suberect +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
long-pedicellate +  and subsessile +
straight +  and slightly curved +
by a terminal pore +  and dehiscent +
spreading +  and erect +
cylindric +  and clavate turbinate obpyramidal or globose +
Wet places, along slow-moving rivers, streams, canals, ditches, often growing into main channels as aquatic weeds. +
perennial +
glandular-puberulent +, hirtellous +, villous +  and strigillose +
fascicled +  and alternate +
deciduous +
0.7 cm7 mm <br />0.007 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
fringed +  and lobed +
submerged +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
truncate +  and subcylindric +
1.4 cm14 mm <br />0.014 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1.5mm +  and 3mm +
numerous +  and 1 +
submerged +
swollen +
6 cm60 mm <br />0.06 m <br /> (9 cm90 mm <br />0.09 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (9 cm90 mm <br />0.09 m <br />) +
7mm +  and 24mm +
5 +  and 4 +
obpyramidal +
0.4 cm4 mm <br />0.004 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
flattened +
0.2 cm2 mm <br />0.002 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Flowering summer-early fall. +
elongated +
Reinwardtia +
paired +, solitary +  and cluster +
ascending +, decumbent +  and erect +
inconspicuous +
expanded +
basal +  and cauline +
clavate +  and globose +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
16 +  and 18 +
pitted +  and smooth +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
flushed with red +, cream +  and yellow +
persistent +
post-anthesis +
spreading +  and suberect +
5 +  and 4 +
lanceolate +  and deltate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
parenchymatous +
parietal +, axile +  and placentation +
unequal +
2 times as many as sepals +
aquatic +, amphibious +  and terrestrial +
bright-yellow +
2 times as many as sepals +
branched +  and simple +
100 cm1,000 mm <br />1 m <br /> (300 cm3,000 mm <br />3 m <br />) +
ascending +  and erect +
10 cm100 mm <br />0.1 m <br /> (100 cm1,000 mm <br />1 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
5-lobed +  and flattened-globose +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
sessile +  and petiolate +
green +  and dark reddish +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
intrapetiolar +
ovate-deltate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
glabrous or +  and sparsely densely hirtellous +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.73 cm7.3 mm <br />0.0073 m <br />) +
aquatic +, amphibious +  and terrestrial +
emergent +  and floating +
papillate +
J. boydiana +  and Ludwigia peploides var. glabrescens +
Ludwigia peploides subsp. glabrescens +
Ludwigia peploides +
subspecies +
3(-5)-aperturate +