SafePlants

Hood River Milk-Vetch

The Hood River Milk-Vetch, a captivating perennial wildflower, graces the landscapes of the Columbia River Gorge. Its clustered stems and unique characteristics make it a notable species in its habitat.

Considerations for Pets

• The plant is described as having stiff hairs, which may cause irritation if touched or ingested.

Scientific Name and Common Names

• Scientific Name: Astragalus hoodianus Howell
• Common Name: Hood River Milk-Vetch, Hood River Milkvetch

Taxonomy and Nomenclature

• Kingdom: Plantae
• Family: Fabaceae (Pea Family)
• Synonyms: Astragalus howellii (mentioned indirectly)

Distribution and Habitat

• Primarily found in the Columbia River Gorge, including areas in Washington (e.g., Dallesport) and Oregon (e.g., Hood River area).
• Often observed on plateaus and hillsides overlooking the Columbia River.

Morphological Characteristics and Growth Habits

• Perennial wildflower with many clustered, ascending to erect stems, ranging from 4-30 cm high.
• Plants are greenish to grayish-hairy, with the entire plant sometimes described as luminous with shiny stiff hairs.
• Leaves are upright from near the base with 11-15 leaflets.
• The stem is erect and may appear bare in the lower part, with ramifications developing higher up.
• Not an evergreen, assuming a yellow coloring in the autumn.

Ecological Role

• The plant's presence is highlighted in the context of biological diversity within the Columbia River Gorge.
• Indicates its importance in the ecosystem, particularly within the Columbia River Gorge National Scenic Area.

Interactions with Other Organisms

• Often found in association with other wildflowers like Oregon poppy, Suksdorfia, big head clover, shooting stars, and yellow violets.

Further Information

• Discover Life offers a page about the biology, natural history, ecology, identification, and distribution of Astragalus hoodianus.
• Dave's Garden may contain tips and ideas related to this plant.