Crimson clover

Trifolium incarnatum, or crimson clover, is an annual herb that is not native to California. Each blue dot on this map represents a known location of Trifolium incarnatum. These locations come from Calflora's many data sources. Calflora is a wild plant database, and we aggregate plant distributions from government agencies, land managers, iNaturalist, CCH plant specimens, and you.

Photos by Larry Dizmang (upper) and Wynn Anderson (lower)

According to Trifolium incarnatum's bloom wheel above, it is likely to bloom from February through April. Calflora bloom wheels represent average bloom periods across the state from thousands of aggregated data sources.

Trifolium incarnatum is not native to California

This species is from Europe. It is used as winter cover crop for agricultural fields and vegetable gardens. Use The Calflora Database track and learn about native, non-native, and invasive plants.

Many land managers who map and report invasive plant treatments use Calflora's Weed Manager software.

Quiz: Is the observation (blue dot) on the distribution map west of San Francisco in the ocean or on land? Reply to this email with your response!

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