Sagittaria montevidensis subsp. montevidensis

Treatment appears in FNA Volume 22.

Herbs, perennial, not stranded by low tide. Leaves submersed and emersed; submersed leaves sessile, blade linear; emersed petiolate, blade hastate to sagittate. Inflorescences of 1–15 whorls, floating or emersed; bracts connate. Flowers: pistillate without ring of sterile stamens; petals with purple spot at base.


Phenology: Flowering summer–fall (Jul–Oct).
Habitat: Wet ditches, mud flats of rivers
Elevation: 0–10 m

Distribution

V22 97-distribution-map.jpg

Introduced; Ala., Fla., Ga., c, s South America

Discussion

Sagittaria montevidensis subsp. montevidensis apparently is native to South America. It has been introduced along the coast of the Gulf of Mexico.

Selected References

None.

Lower Taxa

None.
0.2 cm2 mm <br />0.002 m <br /> (0.43 cm4.3 mm <br />0.0043 m <br />) +
keeled;oblanceoloid +
0.7mm;1.5mm +
papillose +  and smooth +
Obtuse (?) +  and Acute (?) +
Robert R. Haynes +  and C. Barre Hellquist +
Chamisso & Schlechtendal +
attenuate;hastate or sagittate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (17.5 cm175 mm <br />0.175 m <br />) +
hastate +  and sagittate +
0.6cm +  and 22cm +
less than ¼ total length +
not papillose +
club--shaped +, lanceolate +  and elliptic +
Ala. +, Fla. +, Ga. +, c +  and s South America +
0–10 m +
u--shaped +
not tuberculate +
1.2 cm12 mm <br />0.012 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
cylindric +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
hypogynous +
not +, keeled +  and compressed +
Wet ditches, mud flats of rivers +
decumbent +  and floating +
emersed +  and floating +
0cm;17cm +
flattened +
21 cm210 mm <br />0.21 m <br /> (55 cm550 mm <br />0.55 m <br />) +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
decumbent +  and floating +
1.5cm;28cm +
emersed +  and floating +
1.5 cm15 mm <br />0.015 m <br /> (15 cm150 mm <br />0.15 m <br />) +
ascending +  and recurved +
15 cm150 mm <br />0.15 m <br /> (47 cm470 mm <br />0.47 m <br />) +
deciduous +
triangular +
Flowering summer–fall (Jul–Oct). +
not radiating +  and arranged +
decumbent +  and floating +
1.5cm;28cm +
emersed +  and floating +
1.5cm;15cm +
pedicellate +
persistent +
erect;spreading +
sculptured +
herbaceous;leathery +
Weedy +  and Illustrated +
Lophotocarpus +
Sagittaria montevidensis subsp. montevidensis +
Sagittaria montevidensis +
subspecies +
white;brown +
emersed +  and submersed +
glabrous +  and sparsely pubescent +
bracteolate +  and branching +