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Monday, July 7, 2025

Seen This Week: Sycamore Snow


American sycamore seed ball disintegrating on the finish of winter (photograph from Wikimedia Commons)

22 March 2025

Because the climate warmed this month American sycamore (Platanus occidentalis) seed balls disintegrated to disperse their wind-driven seeds.

On 16 March it was very windy after I visited Herr’s Island again channel. Sycamore achenes (seed packets) blew by me within the wind and piled up within the cracks like snow drifts.

A single American sycamore seed, 16 March 2025 (photograph by Kate St. John)

Sycamore snow.

Many sycamore seeds gathering like snow drifts, Herr’s Island, 16 March 2025 (photograph by Kate St. John)

They’d come from seed balls like these that had waited all winter for spring warmth to make them stretch and burst.

Sycamore seed balls hanging like ornaments, 3 March 2018 (photo by Kate St.John)
Sycamore seed balls hanging like ornaments, 3 March 2018 (photograph by Kate St.John)

Not solely do they disperse on the wind however the fluff-tops have a second mode of transportation. They float.

Sycamore seeds swirling within the Allegheny River in Herr’s Island again channel, 16 March 2025 (video by Kate St. John)

Water carries them to their favourite habitats.

American sycamore is discovered mostly in bottomland or floodplain areas, thriving within the moist environments supplied by rivers, streams, or plentiful groundwater.

— Wikipedia American sycamore account

You’ll be capable of establish American sycamores simply earlier than leaf out. Search for the white higher trunks of huge bushes alongside stream and river banks.

Sycamores on the banks of Raccoon Creek, Beaver County, PA, 28 Feb 2018 (photo by Kate St.John)
Sycamores on the banks of Raccoon Creek, Beaver County, PA, 28 Feb 2018 (photograph by Kate St.John)

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