Species library · Plants & herbs
Centaurea nigra
Typically in season from June to September in the northern hemisphere. Found in Grassland, Disturbed ground. Has toxic lookalikes, so check carefully.
Photo: (c) Michael D. Pirie, some rights reserved (CC BY), uploaded by Michael D. Pirie · iNaturalist
Typical window in the northern hemisphere, peak June to September. The southern hemisphere runs about six months offset, and your own timing depends on local weather, so check your town.
Knapweed is usually found in Grassland, Disturbed ground.
Similar species: Brown knapweed, Greater knapweed, Spotted knapweed. Only forage with a confident ID.
Open Knapweed 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.
Knapweed is generally in season from June to September in temperate northern regions. The exact timing shifts with latitude, elevation and each year's weather. Check the Season Finder for your own location.
Knapweed is usually found in Grassland, Disturbed ground.
Similar species: Brown knapweed, Greater knapweed, Spotted knapweed. Only forage with a confident ID. 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.
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
