Hydrocleys nymphoides

(Willdenow) Buchenau

Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen 2: 2.1869; Index Crit. Butom. Alism. Juncagin., 2, 1868.

Common names: Water-poppy
IntroducedIllustrated
Basionym: Stratiotes nymphoides Willdenow Sp. Pl. 4(2): 821. 1806
Treatment appears in FNA Volume 22.
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Herbs, to 50 cm; stolons to 45 cm. Leaves: petioles 1.5–40 cm × 0.9–9 mm, sheathing base to 8.5 cm; blade broadly ovate to orbiculate, 1.4–11.9 × 0.9–10.6 cm, veins 5–9. Inflorescences with 1–6 flowers, proliferating with stolons, leaves; peduncles to 30 cm × 1.5–6 mm; bracts elliptic, 2–4.5 × 0.4–1 cm, apex obtuse; pedicels spreading, 3.5–17.5 cm × 1.5–6 mm. Flowers ca. 6.5 cm wide; sepals 13–28 × 7–13 mm; petals spreading, pale-yellow to white with yellow base, 2.3–2.6 × 3.8–4.1 cm; stamens 20–25; staminodes 20+; pistils 5–8, 10 mm. Fruits 10–14.5 × 2–3.5 mm; beak 3.5–5.5 mm. Seeds ca. 1 mm, sparsely glandular-pubescent, glandular trichomes 0.15 mm, 150–200 m apart, not present on every epidermal-cell of seed-coat.


Phenology: Flowering summer.
Habitat: Margins of lakes and wet ditches
Elevation: 0–100 m

Distribution

V22 17-distribution-map.jpg

Introduced; Fla., Tex., Central America, South America

Discussion

Hydrocleys nymphoides is cultivated, either in aquaria or in pools and ponds (D. S. Correll and M. C. Johnston 1970; R. K. Godfrey and J. W. Wooten 1979). The species apparently persists following cultivation or dumping of aquaria.

Lower Taxa

None.
... more about "Hydrocleys nymphoides"
papillose +
Robert R. Haynes +
(Willdenow) Buchenau +
cordate +
Stratiotes nymphoides +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
1.4 cm14 mm <br />0.014 m <br /> (11.9 cm119 mm <br />0.119 m <br />) +
broadly ovate;orbiculate +
0.9cm;10.6cm +
distinct +
2 cm20 mm <br />0.02 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
elliptic;lanceolate +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Water-poppy +
Fla. +, Tex. +, Central America +  and South America +
0–100 m +
u--shaped +
hypogynous +
10mm;14.5mm +
linear-lanceoloid +  and terete +
membranous +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Margins of lakes and wet ditches +
long-petiolate +  and sessile +
3.5cm;17.5cm +
1.5mm;6mm +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
deciduous +
2.3 cm23 mm <br />0.023 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
3.8 cm38 mm <br />0.038 m <br /> (4.1 cm41 mm <br />0.041 m <br />) +
1.5cm;40cm +
0.9mm;9mm +
Flowering summer. +
attenuate +, linear-lanceoloid +  and terete +
10 cm100 mm <br />0.1 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen +
correll1970a +, godfrey1979a +, muenscher1944a +  and thieret1972a +
not septate +
glandular-pubescent +
persistent +
lanceolate +
0.7 cm7 mm <br />0.007 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Introduced +  and Illustrated +
Hydrocleys nymphoides +
Hydrocleys +
species +
caulescent +, stoloniferous +  and rhizomatous +