Nyctaginaceae

Valley ringstem

Anulocaulis annulatus (Coville) Standl.

Family: Nyctaginaceae
Genus: Anulocaulis

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Common names

By language (1)

English: Valley ringstem

Synonyms

Boerhavia annulata Coville

Characteristics

Growth habit: Forb/herb
Lifespan: Perennial
In the US and Canada: Lower 48 states: native

Photos

Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Ken-ichi Ueda, CC BY 4.0, from Wikimedia Commons

More in Anulocaulis

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.