Sagittaria latifolia
Sagittaria platyphylla
broadleaf arrowhead, duck potato, wapato
delta arrowhead
rhizomes absent; tubers present.
emersed;
petioles ascending to erect; to 50 cm;
blades sagittate, 1–30 × 2–15 cm.
emersed, with 3–9 whorls, 4–25 cm;
peduncles 10– 55 cm; lowest inflorescence node with 3 pistillate flowers;
pedicels cylindrical, 0.5–3.5 cm.
to 4 cm in diameter;
sepals recurved to spreading;
petals without spot at base.
heads 1–2 cm in diameter;
achenes oblanceolate, 2–3.5 mm;
wings absent;
beaks lateral or horizontal, 1–2 mm.
Sagittaria latifolia
Sagittaria platyphylla
Edges of streams and lakes, pools, ditches. Flowering Jul–Sep. 0–100 m. BR, Col, CR, WV. CA, ID, WA; throughout most of North America; South America. Native.
[This taxon does not have a floristic treatment in Flora of Oregon.]
Tamra Prior
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
PNW Herbaria, Turner Photog. 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
