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Sagittaria latifolia

broadleaf arrowhead, duck potato, wapato

Habit Plants perennial.
Roots

rhizomes absent; tubers present.

Leaves

emersed;

petioles ascending to erect; to 50 cm;

blades sagittate, 1–30 × 2–15 cm.

Inflorescences

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.

Flowers

to 4 cm in diameter;

sepals recurved to spreading;

petals without spot at base.

Fruits

heads 1–2 cm in diameter;

achenes oblanceolate, 2–3.5 mm;

wings absent;

beaks lateral or horizontal, 1–2 mm.

Sagittaria latifolia

Distribution
[WildflowerSearch map]
[BONAP county map]
Discussion

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.

Source Flora of Oregon, volume 1, page 132
Tamra Prior
Sibling taxa
S. cuneata, S. graminea, S. montevidensis, S. platyphylla
Synonyms Sagittaria latifolia var. latifolia
Web links