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Douglas' spiny milkvetch
Scientific Name: Astragalus kentrophyta var. douglasii
Family: Fabaceae
Category: Dicot
Growth: Subshrub, Forb/herb
Duration: Perennial
Other Names: WA (thistle milk-vetch)
Astragalus kentrophyta: Spiny Milkvetch
The Astragalus kentrophyta, commonly known as spiny milkvetch, encompasses several varieties, each with its unique distribution and characteristics.
Considerations for Pets
- The plant is named "spiny milkvetch" and known to have varieties called "prickly milk vetch," suggesting the presence of spines or prickles.
Taxonomy and Nomenclature
- Scientific Name: Astragalus kentrophyta A. Gray
- Common Names: Spiny milkvetch, prickly milk vetch, thistle milkvetch, Nuttall's kentrophyta
- Family: Fabaceae (implied, as other Astragalus species are mentioned in this family)
- Varieties:
- Astragalus kentrophyta var. coloradoensis (Colorado spiny milkvetch)
- Astragalus kentrophyta var. douglasii Barneby (Douglas' spiny milkvetch, thistle milkvetch)
- Astragalus kentrophyta var. kentrophyta
- Synonyms: While not explicitly stated, other Astragalus species are listed, suggesting potential historical overlap or misclassification.
- Alternative spelling: Douglass' Milkvetch
Distribution and Habitat
- Astragalus kentrophyta var. coloradoensis is limited to Utah and Arizona.
- Astragalus kentrophyta var. douglasii is limited to Oregon.
Morphological Characteristics and Growth Habits
- Astragalus kentrophyta var. douglasii is described as a subshrub/forb/herb.
Cultivation
- Mature Douglas' spiny milkvetch specimens should be watered every 4-5 weeks with 1-2 buckets of water, only when the soil has been dry for days.
- Young or recently sheltered Douglas' spiny milkvetch specimens should be watered more frequently.