Sagittaria cuneata

arumleaf arrowhead
duck potato
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Alismatales
Family: Alismataceae
Genus: Sagittaria
Species: S. cuneata
Binomial name
Sagittaria cuneata
  • Sagittaria arifolia Nutt. ex J.G.Sm.
  • Sagittaria hebetiloba A.Nelson
  • Sagittaria paniculata Blank.
  • Sagittaria marioniae R.Loxley
  • Sagittaria sagittifolia var. minor Pursh
  • Sagittaria suksdorfii Gand.

Sagittaria cuneata is a species of flowering plant in the water plantain family known by the common name arumleaf arrowhead[2] or duck potato. Like some other Sagittaria species, it may be called wapato. It is native to much of North America, including most of Canada (every province and territory except Nunavut) as well as the western and northeastern United States (New England, Great Lakes, Great Plains, Rocky Mountain, Great Basin and Pacific Coast states; including Alaska but not Hawaii).[3][4][5]

Sagittaria cuneata is an aquatic plant, growing in slow-moving and stagnant water bodies such as ponds and small streams. It is quite variable in appearance, and submerged parts of the plant look different from those growing above the surface or on land. In general it is a perennial herb growing from a white or blue-tinged tuber. The leaves are variable in shape, many of them sagittate (arrow-shaped) with two smaller, pointed lobes opposite the tip. The leaf blades are borne on very long petioles. The plant is monoecious, with individuals bearing both male and female flowers. The inflorescence which rises above the surface of the water is a raceme made up of several whorls of flowers, the lowest node bearing female flowers and upper nodes bearing male flowers. The flower is up to 2.5 centimeters wide with white petals. The male flowers have rings of yellow stamens at the centers. Each female flower has a spherical cluster of pistils which develops into a group of tiny fruits.[6][7][8][9][10]


  1. The Plant List Sagittaria cuneata
  2. "Sagittaria cuneata". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 26 October 2015.
  3. Flora of North America
  4. Biota of North America Program, map, Sagittaria cuneata
  5. Kew World Checklist of Selected Plant Families
  6. Jepson Manual Treatment
  7. USDA Plants Profile
  8. Sheldon, Edmund Perry. 1893. Bulletin of the Torrey Botanical Club 20(7): 283, pl. 159, Sagittaria cuneata
  9. Gandoger, Michel. 1920. Bulletin de la Société Botanique de France 66: 294, Sagittaria suksdorfii
  10. Blankinship, Joseph William. 1905. Science Studies, Montana College of Agriculture and Mechanic Arts. Botany, Bozeman 1: 40, pl. 6, Sagittaria paniculata
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