Sagittaria cuneata Sheldon
Arumleaf arrowhead
Arumleaf arrowhead is a widespread North American native.
Plants: Arumleaf arrowhead has arrowhead-shaped leaves 1¾–6″ (5–15 cm) long, on stalks that are triangular in cross-section.
Leaves: In addition to arrow-shaped leaves that are mostly above the water line, arumleaf arrowhead may have floating or submersed leaves that are long and narrow, and floating leaves that are oval- or heart-shaped.
Flowers: Flowers are white, with yellow centers. Each flower has three petals and three green sepals, and is up to ⅞″ (2.5 cm) in diameter.
Fruits: About 1/16″ (2 mm) long, clustered on spherical heads.
Habitats: Shallow wetlands, river banks.
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Arumleaf arrowhead is easily confused with broadleaf arrowhead. |
Online References:
Sagittaria arifolia Nutt. ex J.G. Sm.
9/7/2010 · New England Botanic Garden at Tower Hill, Boylston, Massachusetts · ≈ 8 × 12″ (20 × 31 cm) 
ID is uncertain 
6/2/2010 · J. Harry Rich State Forest, Groton, Massachusetts · ≈ 1 × 1½′ (32 × 49 cm) ID is uncertain 
6/2/2010 · J. Harry Rich State Forest, Groton, Massachusetts ID is uncertain 
6/2/2010 · J. Harry Rich State Forest, Groton, Massachusetts ID is uncertain 
8/24/2013 · Cranberry Meadow Pond Trail, Monadnock Conservancy, Peterborough, New Hampshire · ≈ 8 × 12″ (21 × 31 cm) 
8/24/2013 · Cranberry Meadow Pond Trail, Monadnock Conservancy, Peterborough, New Hampshire · ≈ 3½ × 3″ (9.6 × 7.8 cm) 
5/5/2010 · Nashua River at Rte 119, Groton, Massachusetts · ≈ 1 × 1½′ (41 × 49 cm) ID is uncertain 
8/8/2010 · Jeff Smith Trail, Beaver Brook Association Conservation Lands, Rte. 130, Hollis, New Hampshire · ≈ 7 × 10″ (16 × 25 cm) ID is uncertain 
8/8/2010 · Jeff Smith Trail, Beaver Brook Association Conservation Lands, Rte. 130, Hollis, New Hampshire · ≈ 3 × 4½″ (7.5 × 11 cm) ID is uncertain 
8/28/2010 · Lake Messalonskee, Belgrade Lake, Maine · By Constance B. Kent ID is uncertain 
8/24/2013 · Cranberry Meadow Pond Trail, Monadnock Conservancy, Peterborough, New Hampshire · ≈ 6 × 8″ (14 × 19 cm) 
8/28/2010 · Lake Messalonskee, Belgrade Lake, Maine · By Constance B. Kent ID is uncertain 
8/21/2017 · Pearl Hill State Park, Townsend, Massachusetts · ≈ 7 × 7″ (18 × 18 cm) 
4/27/2010 · Nashua River at Rte. 119, Pepperell, Massachusetts ID is uncertain 
8/24/2013 · Cranberry Meadow Pond Trail, Monadnock Conservancy, Peterborough, New Hampshire · ≈ 7 × 10″ (16 × 25 cm) 
| Kingdom | Plantae | Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin) |
| Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
| Division | Magnoliophyta | Flowering plants, also known as angiosperms |
| Class | Liliopsida | Monocots (plants with a single seed leaf); includes the lily family |
| Subclass | Alismatidae | Aquatic and marshy plants |
| Order | Alismatales | Herbaceous flowering plants found in marshy habitats |
| Family | Alismataceae | Water-plantain family |
| Genus | Sagittaria | From Latin sagitta, “arrow,” for the leaf shape |
| Species | cuneata | From Latin for “wedge-shaped,” also for the leaf shape |
Sagittaria cuneata description by Thomas H. Kent, not updated.
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