SafePlants

Ventura Marsh Milk-Vetch (Astragalus pycnostachyus var. lanosissimus)

The Ventura marsh milk-vetch, scientifically known as Astragalus pycnostachyus var. lanosissimus, is a unique plant with several interesting characteristics.

Considerations for Pets

• The plant is described as having "woolly stems," which might be attractive to some pets, potentially leading to ingestion.
• The plant is related to "Thorny Harrow" historically, though this may refer to similar plant species.

Considerations for Children

• The plant is described as having "woolly stems," which might be attractive to some children, potentially leading to ingestion.
• The plant is related to "Thorny Harrow" historically, though this may refer to similar plant species.

Taxonomy and Nomenclature

• Scientific Name: Astragalus pycnostachyus var. lanosissimus
• Common Name: Ventura marsh milk-vetch
• Family: Fabaceae (Pea family)
• Synonyms: Astragalus pycnostachyus A. Gray var. lanosissimus (Rydb.) Munz & McBurney, Astragalus pycnostachyus A. Gray var. lanosissimus (Rydb.) Munz

Distribution and Habitat

• The Ventura marsh milk-vetch is endemic to the coastline of California.
• It specifically grows in coastal marsh habitats.

Morphological Characteristics

• It is a short-lived, herbaceous perennial.
• The plant forms a thick, erect clump of hollow, woolly stems.
• The stems are typically 40 to 90 centimeters tall.
• Leaves can grow up to 15 centimeters long.
• The plant develops a bare stem at the bottom, creating a thick crown.

Ecological Role

• The Ventura marsh milk-vetch is listed as an endangered species in the U.S. and California.

Additional Information

• Rancho Santa Ana Botanic Garden uses its seed collection for conservation efforts related to the Ventura Marsh Milkvetch.