Species library · Mushrooms

Foraging Sycamore Tar Spot

Rhytisma acerinum

Typically in season from August to October in the northern hemisphere. Found in Woodland, Woodland edges.

Sycamore Tar Spot (Rhytisma acerinum)

Photo: Cara Ennis · CC BY

When Sycamore Tar Spot is in season

Typical window in the northern hemisphere, peak August to October. The southern hemisphere runs about six months offset, and your own timing depends on local weather, so check your town.

→ Everything in season to forage in July

Where it grows

Sycamore Tar Spot is usually found in Woodland, Woodland edges.

Take Sycamore Tar Spot into the field

Open Sycamore Tar Spot in the Forage app for its full field guide entry with more photos, key features and toxic lookalikes to check against. Add it to your watchlist and the app pings you the moment it comes into season at your exact spot, worked out from live weather, elevation and billions of occurrence records.

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Sycamore Tar Spot: common questions

When is Sycamore Tar Spot in season?

Sycamore Tar Spot is generally in season from August to October in temperate northern regions. The exact timing shifts with latitude, elevation and each year's weather. Check the Season Finder for your own location.

Where does Sycamore Tar Spot grow?

Sycamore Tar Spot is usually found in Woodland, Woodland edges.

Is Sycamore Tar Spot safe to forage?

Never eat any wild plant, berry, nut or mushroom unless you are completely certain of the identification. Check every find against a reliable field guide, and when in doubt, don't.

One note before you head out

Forage helps you discover and identify wild plants, but identification is never 100% certain. Many edible plants have toxic lookalikes. Never eat anything you find based only on what this app tells you. Always confirm with a field guide, an experienced forager or a local expert. The season score tells you where to look, too: it’s not a guarantee. Mind conservation law and property rights as well.

Species photos via Wikimedia Commons and iNaturalist · full credits