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{{Taxobox
{{SPlantbox
| color = lightgreen
|familia=Alismataceae
| name = ''Sagitarria''
|genus=Sagittaria
| image = Illustration Sagittaria sagittifolia0.jpg
|common_name=Arrowhead
| image_width = 240px
|name_ref=Flora - A Gardener's Encyclopedia
| image_caption = ''S. sagittifolia''
|habit=aquatic
| regnum = [[Plant]]ae
|habit_ref=Flora - A Gardener's Encyclopedia
| divisio = [[Magnoliophyta]]
|Temp Metric=°F
| classis = [[Liliopsida]]
|jumpin=If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
| ordo = [[Alismatales]]
|image=Sagittaria sagittifolia bloem kl.jpg
| familia = [[Alismataceae]]
|image_width=240
| genus = '''''Sagittaria'''''
|image_caption=''Sagittaria sagittifolia'' flowers
}}
}}
'''''Sagittaria''''' or "arrowhead" is a genus of about 30<ref name="fna">[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=129016 3. Sagittaria Linnaeus], ''[[Flora of North America]]''</ref> species of [[aquatic plant]]s whose members go by a variety of common names, including '''arrowhead''', '''duck potato''', '''iz-ze-kn''',<ref>[http://vets.com/questionmanager/encyclopaedia/ency1/B1.HTM#ARROWHEAD The Probert Encyclopaedia - Animals And Plants (A)<!-- Bot generated title -->]</ref> '''katniss''', '''kuwai''', '''swan potato''', '''tule potato''', and '''wapato''' (or '''wapatoo'''). Most are native to South America, Central America, and North America, but there are also some from Europe and Asia.<ref name="fna"/>
Several species bear [[tuber]]s edible as a [[starch]]y [[root vegetable]] that are collected from the wild or cultivated as crops in [[North America]] and [[East Asia]].
Stock often stoloniferous and tuberiferous. [[Leaves]] aerial, floating or submerged. [[Flowers]] unisexual or polygamous, in umbela, racemes or panicles with female or hermaphrodite flowers at the base and male flowers above or occasionally with the [[flowers]] all male or all female. [[Stamens]] usually numerous. [[Carpels]] numerous, spirally arranged, free, each with 1 ovule; styles apical or subventral. [[Fruit]]lets achenial, laterally compressed, obliquely obovate, the margins winged, with apical or ventral beak.
Several species are commonly grown in [[aquariums]] or in the [[pond]].
They are found in all United States. 6"-10" inches long and a half an inch wide.
{{Inc|
Sagittaria (sagitta is Latin for arrow, referring to the arrow-shaped leaves). Alismaceae. Arrowhead. Perennial hardy herbs useful for foliage effects in bogs and shallow ponds and also for their white buttercup-like flowers.
Plants of mostly erect habit, aquatic, the lvs. and scapes arising from more or less tuberous or knotted rootstocks: lvs. typically arrow-shaped, with long basal lobes, but sometimes long and linear: fls. imperfect, monoecious (staminate fls. usually in the uppermost whorls) or dioecious, with 3 white broad petals and 3 small greenish sepals, the stamens and pistils numerous, the latter ripening into small achenes; infl. composed of successive whorls of 3-stalked fls. Sometimes the lvs. are floating. The number of species admitted is variable, but Buchenau in the last treatment of the genus in Engler’s Das Pflanzenreich, hft. 16 (iv. 15, 1903) describes 31. Temperate and tropical regions of the world though lacking in Afr. and Austral.
Sagittarias are mostly used for colonizing in the open, but S. montevidensis—now the most popular species—is grown in indoor aquaria or plunged in open ponds in the summer. The arrowheads are perennials of easy culture, although likely to be infested with aphis. Propagation is by division, or sometimes by seeds.
== Ecology ==
S. macrophylla has appeared in trade-lists as "a variety with large foliage and tall lax spikes of white fls." Its botanical position is uncertain as there are two distinct things of this name, one a valid species, the other a large-lvd. form of S. sagittifolia.
}}
==Cultivation==
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===Propagation===
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== Species ==
===Pests and diseases===
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* ''[[Sagittaria aginashi]]'' Makino
==Species==
* ''[[Sagittaria cuneata]]'' E. P. Sheld. (Wapato, Arrowhead, Swamp Potato)
* ''[[Sagittaria aginashi]]''
* ''[[Sagittaria cuneata]]'' (Wapato, Arrowhead, Swamp Potato)
* ''[[Sagittaria fasciculata]]'' (Bunched Arrowhead)
* ''[[Sagittaria fasciculata]]'' (Bunched Arrowhead)
* ''[[Sagittaria graminea]]'' (Grassy Arrowhead)
* ''[[Sagittaria graminea]]'' (Grassy Arrowhead)
* ''[[Sagittaria lancifolia]]'' L. (Bulltongue Arrowhead)
* ''[[Sagittaria lancifolia]]'' (Bulltongue Arrowhead)
* ''[[Broadleaf arrowhead|Sagittaria latifolia]]'' Willd. (Duck-potato, Broad Leaf Arrowhead)
* ''[[Broadleaf arrowhead|Sagittaria latifolia]]'' (Duck-potato, Broad Leaf Arrowhead)
* ''[[Sagittaria montevidensis]]'' (California Arrowhead)
* ''[[Sagittaria montevidensis]]'' (California Arrowhead)
* ''[[Sagittaria platyphylla]]'' (Delta Arrowhead, Delta Duck-potato)
* ''[[Sagittaria platyphylla]]'' (Delta Arrowhead, Delta Duck-potato)
* ''[[Sagittaria rigida]]'' Pursh. (Canadian Arrowhead)
* ''[[Sagittaria rigida]]'' (Canadian Arrowhead)
* [[Sagittaria sagittifolia|''Sagittaria sagittifolia'' L.]] (Arrowhead)
* [[Sagittaria sagittifolia|''Sagittaria sagittifolia'' L.]] (Arrowhead)
* ''[[Sagittaria subulata]]'' L. Buch. (Narrow-leaved Arrowhead)
* ''[[Sagittaria subulata]]'' (Narrow-leaved Arrowhead)
* ''[[Sagittaria trifolia]]'' L.
* ''[[Sagittaria trifolia]]''
==Gallery==
<gallery perrow=5>
File:Illustration Sagittaria sagittifolia0.jpg|
Image:Wapato.JPG|''[[wapato]]'' bulb
Image:Upload.png| photo 1
Image:Upload.png| photo 2
Image:Upload.png| photo 3
</gallery>
== External links ==
==References==
*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
<!--- xxxxx *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381 -->
<!--- xxxxx *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432 -->
<!--- xxxxx *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608 -->
==External links==
*{{wplink}}
* [http://www.wetwebmedia.com/PlantedTksSubWebIndex/sagittaria.htm The Arrowheads]
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