Apocynaceae

Horsetail milkweed

Asclepias subverticillata (A.Gray) Vail

Family: Apocynaceae
Genus: Asclepias

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Horsetail milkweed (Asclepias subverticillata) — FlowerPhoto: Michelle W. （鍾偉瑋）, CC BY 4.0, from iNaturalist

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Common names

By language (2)

English: Horsetail milkweed
nv: Naʼashǫ́ʼiidą́ą́ʼ, Doobichʼįʼachíhí

Synonyms

Asclepias verticillata var. subverticillata A.Gray

Characteristics

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

Photos

FlowerPhoto: Michelle W. （鍾偉瑋）, CC BY 4.0, from iNaturalist
FlowerPhoto: Andrew Conboy, CC BY 4.0, from iNaturalist
FlowerPhoto: Michelle W. （鍾偉瑋）, CC BY 4.0, from iNaturalist
FlowerPhoto: Judy Gallagher, CC BY-SA 4.0, from iNaturalist
Photo: Kenraiz, CC BY-SA 4.0, from Wikimedia Commons
Photo: Kenraiz, CC BY-SA 4.0, from Wikimedia Commons
Photo: Kenraiz, CC BY-SA 4.0, from Wikimedia Commons
Photo: Kenraiz, CC BY-SA 4.0, from Wikimedia Commons
Photo: Kenraiz, CC BY-SA 4.0, from Wikimedia Commons
Photo: Kenraiz, CC BY-SA 4.0, from Wikimedia Commons
Photo: Kenraiz, CC BY-SA 4.0, from Wikimedia Commons
Photo: Patrick Alexander from Las Cruces, NM, CC0, from Wikimedia Commons

More in Asclepias

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.