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Sagittaria latifolia - Willd.
                 
Common Name Duck Potato, Broadleaf Arrowhead
Family Alismataceae
USDA hardiness 6-9
Known Hazards None known
Habitats Ditches, ponds, lakes and swampy areas in most parts of N. America[60].
Range N. America - all areas except the far north. Naturalized in various parts of Europe[50].
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Fully Hardy Wet Soil Water Plants Full sun

Summary

Sagittaria latifolia Duck Potato, Broadleaf Arrowhead


Sagittaria latifolia Duck Potato, Broadleaf Arrowhead
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1
   
Physical Characteristics
 icon of manicon of flower
Sagittaria latifolia is a PERENNIAL growing to 1.2 m (4ft) by 0.3 m (1ft in).
It is hardy to zone (UK) 7 and is not frost tender. It is in flower from Jul to September, and the seeds ripen from Aug to September. The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and are pollinated by Insects.Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers wet soil and can grow in water.

Synonyms
Sagittaria obtusa. Sagittaria variabilis. Sagittaria chinensis. Sagittaria engelmanniana J.G. Sm. ss
Habitats
 Pond; Bog Garden;
Edible Uses
Edible Parts: Root.
Edible Uses:

Root - raw or cooked[62, 105]. Excellent when roasted, the texture is somewhat like potatoes with a taste like sweet chestnuts[85, 92, 94, 159, 256]. The tubers can be eaten raw but they are rather bitter (especially the skin)[85, 102, 159]. It is best to remove this skin after the tubers have been cooked[183]. The tubers can also be dried and ground into a powder, this powder can be used as a gruel or mixed with cereal flours and used to make bread[85, 94]. The N. American Indians would slice the boiled roots into thin sections and then string them on ropes to dry in much the same way as apples[183].The egg-shaped tubers are 4 - 5cm long and are borne on the ends of slender roots, often 30cm deep in the soil and some distance from the parent plant[85, 92, 94]. The tubers are best harvested in the late summer as the leaves die down[92, 95]. They cannot be harvested by pulling out the plant since the tops break off easily, leaving the tubers in the ground[213].
Medicinal Uses


Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

Digestive;  Poultice.

A poultice of the leaves has been used to stop milk production[222]. A tea made from the roots is used as a digestive[222, 257]. A poultice of the roots is used in the treatment of wounds and sores[222, 257].
Other Uses
None known
Cultivation details
A pond or bog garden plant, it requires a moist or wet loamy soil in a sunny position[1]. Prefers shallow, still or slowly flowing water up to 12cm deep[1, 56]. Hardy to at least -20°c[187]. A polymorphic species[92].
Propagation
Seed - best sown as soon as it is ripe in a pot standing in about 5cm of water. Prick out the seedlings into individual pots when they are large enough to handle, and gradually increase the depth of water as the plants grow until it is about 5cm above the top of the pot. Plant out in late spring or early summer of the following year. Division of the tubers in spring or autumn. Easy. Runners potted up at any time in the growing season.
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Sagittaria aginashi 10
Sagittaria brevirostaShort-Beaked Arrow Leaf20
Sagittaria chapmaniiChapman's arrowhead00
Sagittaria cuneataWapato, arumleaf arrowhead41
Sagittaria gramineaChinese Arrowhead, Grassy Arrowhead, Weatherby's arrowhead10
Sagittaria rigidaSessile-Fruited Arrowhead30
Sagittaria sagittifoliaArrow Head, Hawaii arrowhead51
Sagittaria sagittifolia leucopetala 31
Sagittaria trifoliaChinese Arrowroot, Threeleaf arrowhead40
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Expert comment
 
Author
Willd.
Botanical References
60200274
Links / References
For a list of references used on this page please go here
Readers comment
 
Elizabeth H.
Terry Spurgeon Thu Nov 23 2006
Sagittaria latifolia is quite common along the Fraser River in the Fraser Valley region of Southwestern British columbia, especially in the environs of the Pitt River. It certainly can't be called rare in British Columbia.

Simon Fraser University Library MA Thesis - Terrence Spurgeon - about Wapato

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Subject : Sagittaria latifolia  
 

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