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Photo is of parent taxon

floating primrose-willow, floating water primrose, Matted water primrose

Photo is of parent taxon
Stems

glabrous or sparsely villous.

glabrous.

Leaves

alternate or fascicled;

stipules symmetrical;

petioles of basal leaves 0.3–0.8 cm, those of distal leaves 0.2–2.5 cm;

blade 0.8–4(–8.5) cm, apex sometimes glandular-mucronate, surfaces shiny, glabrous, rarely ciliate or minutely pellucid-punctate.

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 on short filaments 0.5–1.1 mm, those on long filaments 0.8–1.2 mm;

ovary 6–14 mm, apex truncate, glabrous or with scattered hairs, stigma usually as long as anthers, rarely exserted beyond them.

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

10–17(–25) × 2–3 mm, pedicel 10–35 mm.

25–40 × 3–4 mm, pedicel 35–90 mm.

Seeds

7–14 per locule.

16–18 per locule.

2n

= 16.

= 16.

Ludwigia peploides subsp. peploides

Ludwigia peploides subsp. glabrescens

Phenology Flowering summer–early fall. Flowering summer-early fall.
Habitat Wet places, along slow-moving rivers, streams, canals, ditches, often growing into main channels as aquatic weeds. Wet places, along slow-moving rivers, streams, canals, ditches, often growing into main channels as aquatic weeds.
Elevation 0–900[–3000] m. (0–3000[–9800] ft.) 0–900[–3000] m. (0–3000[–9800] ft.)
Distribution
from FNA
AZ; CA; NM; OR; TX; Mexico; Central America; South America; West Indies (Cuba); Pacific Islands (Galapagos Islands) [Introduced elsewhere in Pacific Islands (Society Islands), Australia]
[BONAP county map]
from FNA
AL; AR; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MD; MO; MS; NC; NE; NJ; NY; OH; OK; PA; SC; TN; TX; VA; WV; South America (Venezuela)
[BONAP county map]
Source FNA vol. 10. FNA vol. 10.
Parent taxa Onagraceae > subfam. Ludwigioideae > Ludwigia > sect. Jussiaea > Ludwigia peploides Onagraceae > subfam. Ludwigioideae > Ludwigia > sect. Jussiaea > Ludwigia peploides
Sibling taxa
L. peploides subsp. glabrescens, L. peploides subsp. montevidensis
L. peploides subsp. montevidensis, L. peploides subsp. peploides
Synonyms Jussiaea californica, J. diffusa var. californica, J. repens var. californica Jussiaea repens var. glabrescens, J. boydiana, L. peploides var. glabrescens
Name authority unknown (Kuntze) P. H. Raven: Reinwardtia 6: 394. (1964)
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