Plant

Tufted evening primrose

Oenothera cespitosa
Plant
Tufted evening primrose
Habitat
Plains north of Great Falls, MT
Conservation
Apparently secure
First Observed
1806-07-17

Common low-growing evening primrose of arid or barren areas. Roots were used as poultices for bruising.

In the NPS atlas of species the expedition described

Tufted evening primrose

Plant · recorded by Meriwether Lewis

Discovered in the Plains north of Great Falls, MT. Common low-growing evening primrose of arid or barren areas. Roots were used as poultices for bruising.

From the NPS Lewis and Clark National Historic Trail Park Atlas, mirrored here on September 21, 2026. This copy is not authoritative; NPS remains the system of record. About the mirror

Recent sightings

Where it’s being seen today

2 research-grade iNaturalist observations between 2023–2025. Most recent: 2025-06-05. Sourced from Terrain360 trail captures, cached locally.

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