Author

Matthew Duplessis

Electronic links

http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=222000354

http://plants.usda.gov/java/profile?symbol=SAPL

-- Merge record --

Flora North America species treatment
http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=222000354

Flora North America treatment for Sagittaria
http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=129016

USDA Plants Database species profile page
http://plants.usda.gov/java/profile?symbol=SAPL

Ecology

Emergent in streams and lakes  also in wet areas

-- Merge record --

Emergent in streams and lakes also in other wet areas.

Family

Alismataceae

-- Merge record --

Alismataceae -  Water-plantain or Arrowhead Family

Flowering period

July-September           

-- Merge record --

July- November

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Fruiting head

0.7--1.2 cm diam.; achenes oblanceoloid, not abaxially keeled, 1.2--2 x 0.8--1.2 mm, beaked; faces tuberculate, wings absent, glands absent; beak lateral, horizontal to erect, 0.3--0.6 mm.

Geographic distribution

Florida w. to e. Texas, n. to Okl., Mo., Ke., n. Georgia; disjunct populations in Ohio, W.V. and Penn.; also in Central America 

-- Merge record --

Florida west to east Texas, north to Okl., Mo., Ke., north Georgia; disjunct population in Ohio, W.V. and Penn.; aslo in Central America.  

Inflorescences

Racemes, of 3--9 whorls of flowers, emersed, 2.5--10 x 2--4.5 cm, usually overtoped by leaves; peduncles 22--60 cm; bracts connate more than ¼ total length, lanceolate, 3--5.5 mm, delicate, not papillose; fruiting pedicels spreading to recurved, cylindric, 0.5--3 cm.

Leaves

-- Merge record --

Leaves submersed and emersed;

Submersed sessile, phyllodial, flattened, to 25 long x 0.5 cm wide;

Emersed with petiole ± triangular in cross-section, 10-70 cm, blade linear-ovate to ovate, 4.5-16.4 x  0.5-6 cm.

Recognition factors

Leaves usually overtopping inflorescences; leaf blades ellipitc; pistillate flowers without ring of sterile stamens; fruiting pedicels recurved.

Top

References

Flora of North America. 2006. “Sagittaria platyphylla.” Volume 22 : Alismataceae.

            www.efloras.org.

Godfrey, Robert K, and Jean W. Wooten. 1981. Aquatic and Wetland Plants of Southeastern

            United States:

USDA, NRCS. 2006. The PLANTS Database (http://plants.usda.gov, 30 November 2006).

            National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

-- Merge record --

Godfrey, Robert K, and Jean W. Wooten. 1979. Aquatic and Wetland Plants of Southeastern

            United States: Monocotyledons. The University of Georgia Press. Athens.

Haynes, R. R. and C.Barre Hellquist. 2000. Sagittaria Linnaeus. In: Flora of North America North of Mexico.Volume 22. Edited by Flora of North America Editoral Committee. Oxford University Press. New York, Oxford. 

USDA, NRCS. 2006. The PLANTS Database (http://plants.usda.gov, 30 November 2006).

            National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Rhizomes; stolons

Stolons (rhizomes) present, corms may be present.

Stems

 Acaulescent

Synonyms

Sagittaria graminea Michx. var. platyphylla Engelm   

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