Sagittaria montevidensis subsp. spongiosa

(Engelmann) Bogin

Memoirs of the New York Botanical Garden 9: 198. 1955.

Common names: Tidal arrowhead
Basionym: Sagittaria calycina var. spongiosa Engelmann
Synonyms: Lophotocarpus spongiosus (J. G. Smith) BuchenauSagittaria spatulata unknown
Treatment appears in FNA Volume 22.
Revision as of 01:26, 27 July 2019 by FNA>Volume Importer
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Herbs, annual, often stranded by low tide. Leaves emersed, sessile, phyllodial, lanceolate, or petiolate with blade spatulate, rarely sagittate. Inflorescences of 1–4 whorls, emersed; bracts connate. Flowers: pistillate with ring of sterile stamens; petals without purple spot at base. 2n = 22.


Phenology: Flowering summer–fall (Jul–Oct).
Habitat: Brackish to freshwater tidal mud flats and salt marshes
Elevation: 0–5 m

Distribution

V22 342-distribution-map.jpg

N.B., Conn., Del., Maine, Md., Mass., N.H., N.J., N.Y., Pa.

Discussion

Selected References

None.

Lower Taxa

None.
Robert R. Haynes +  and C. Barre Hellquist +
(Engelmann) Bogin +
Sagittaria calycina var. spongiosa +
Tidal arrowhead +
N.B. +, Conn. +, Del. +, Maine +, Md. +, Mass. +, N.H. +, N.J. +, N.Y. +  and Pa. +
0–5 m +
Brackish to freshwater tidal mud flats and salt marshes +
Flowering summer–fall (Jul–Oct). +
Memoirs of the New York Botanical Garden +
Weedy +  and Illustrated +
Lophotocarpus spongiosus +  and Sagittaria spatulata +
Sagittaria montevidensis subsp. spongiosa +
Sagittaria montevidensis +
subspecies +