Plants diurnal

broadleaf arrowhead

Sagittaria latifolia

The iconic wetland sentinel with unmistakable arrow-shaped leaves and delicate white blooms. A historical food source and a magnet for backyard pond wildlife.

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Quick Identification

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Size

Grows 1-4 feet (0.3-1.2 meters) tall with leaves reaching up to 12 inches (30 cm) in length

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Colors

Bright emerald green foliage; brilliant white flowers with three petals and vibrant yellow (male) or green (female) centers

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Key Features

Distinctive arrowhead-shaped leaves with pointed lobes
Three-petaled white flowers arranged in whorls
Emergent growth pattern in shallow water
Fleshy, edible underground tubers

When You’ll See Them

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Activity pattern diurnal

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Peak hours 9 AM - 5 PM (for blooming and pollinator activity)

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Season July-September

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Diet Photosynthetic; draws nitrogen and phosphorus from aquatic sediments through its root system

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Habitat Shallow freshwater including marshes, pond margins, swamps, and slow-moving stream banks

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Behavior

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Broadleaf arrowhead, often called Wapato or Duck-potato, is a hardy perennial that acts as a vital stabilizer for wetland shorelines. It is an 'emergent' plant, meaning its roots are anchored underwater while its leaves and flowers rise above the surface. This species is famous for its 'plasticity,' as its leaf shape can change significantly depending on water depth and flow; submerged leaves may look like thin ribbons, while those in the air take on the iconic broad arrow shape.

Ecologically, this plant is a hub of activity. It spreads aggressively through a network of rhizomatous roots, creating dense clusters that provide excellent cover for juvenile fish and amphibians. For humans, it holds deep historical significance as a primary starch source for many Native American tribes, who would wade into marshes to harvest the nutrient-dense tubers with their feet.

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Camera Tips

Capturing the broadleaf arrowhead with your trail camera requires a focus on 'wildlife interaction' rather than just the plant itself. Since this plant is a favorite food for muskrats, beavers, and various waterfowl, place your camera on a low-profile stake just 6-12 inches above the water line. Angle the lens slightly downward to catch the base of the stems, where you are most likely to see animals foraging for the crunchy stalks or diving for the submerged tubers.

If your camera has a time-lapse mode, broadleaf arrowhead is an ideal subject. Set your camera to take a photo every 30 minutes during the peak growing months of June and July. This will allow you to witness the dramatic 'unfurling' of the arrow-shaped leaves and the rapid rise of the flower stalks. Because these plants grow in bright, reflective water environments, try to position the camera with the sun at its back to avoid lens flare and 'white-out' on the highly reflective white petals.

For those interested in insects, focus your camera's trigger on the white blossoms. They are magnets for water-loving pollinators like the giant swallowtail butterfly and various specialized bees. If your camera has a 'macro' or 'close-focus' setting, use it here to capture the intricate details of the yellow centers. In the late autumn, keep the cameras rolling even as the leaves brown; this is when you will capture Mallards and Wood Ducks 'tipping up' to reach the energy-rich duck potatoes buried in the mud below.

Similar Species

Species that look similar or are commonly confused with broadleaf arrowhead.

Arrow Arum

Leaves have a thick vein running along the leaf margin and the flowers are green spathes rather than white petals.

Pickerelweed

Leaves are more heart-shaped than arrow-shaped, and it produces spikes of violet-blue flowers.

Frequently Asked Questions

Yes, the submerged tubers, known as 'duck potatoes' or 'wapato,' are edible and taste similar to a sweet potato or chestnut when roasted or boiled.

Planting broadleaf arrowhead in shallow, muddy edges will naturally attract waterfowl like Mallards and Wood Ducks who forage for the nutritious tubers in late autumn.

They often grow on the same stalk; male flowers are on top with bushy yellow stamens, while female flowers are lower down with a bumpy green center.

Yes, as long as it is planted in a water feature, a submerged pot, or a very wet rain garden with consistently saturated soil.

Look at the leaf veins; broadleaf arrowhead has veins that radiate from the center, while Arrow Arum has a distinct vein running along the very edge of the leaf.

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