Astragalus Oocalycis

Description

Astragalus Oocalycis, commonly known as Owyhee milkvetch, is a perennial plant native to the western United States. It belongs to the legume family (Fabaceae) and is known for its beautiful pink to purple flowers that bloom in late spring to early summer. The plant has a deep taproot that allows it to survive in arid environments and is an important source of forage for wildlife.

Taxonomic Information

Domain	Eukarya
Kingdom	Plantae
Phylum	Spermatophyta
Class	Magnoliopsida
Order	Fabales
Family	Fabaceae
Genus	Astragalus

Appearance

Astragalus Oocalycis typically grows to a height of 1-2 feet and has a spread of 2-3 feet. The leaves are compound, with 7-15 leaflets that are gray-green in color and covered in fine hairs. The flowers are arranged in clusters and are pink to purple in color. The plant’s fruit is a cylindrical pod that contains several seeds.

Care Guide

Astragalus Oocalycis is a hardy plant that requires minimal care. It prefers well-draining soil and full sun exposure. The plant is drought-tolerant but should be watered regularly during the first growing season to establish a strong root system. Fertilization is not necessary, but a light application of compost can be beneficial. The plant is hardy to USDA zones 6-10.

Common Pests & Diseases

Astragalus Oocalycis is generally resistant to pests and diseases. However, it can be susceptible to root rot if planted in poorly draining soil. Powdery mildew can also be a problem in humid environments.

Habitat

Astragalus Oocalycis is native to the western United States and can be found in dry, rocky areas, and open forests. It is commonly found in Idaho, Nevada, Oregon, and Utah.

Question and Answer

Q: Is Astragalus Oocalycis poisonous?

A: No, Astragalus Oocalycis is not poisonous and is safe for humans and animals to consume.

Q: How often should I water Astragalus Oocalycis?

A: Water Astragalus Oocalycis regularly during the first growing season to establish a strong root system. After that, it is drought-tolerant and only needs to be watered during extended dry periods.

Q: Can Astragalus Oocalycis grow in a container?

A: Yes, Astragalus Oocalycis can grow in a container as long as the soil is well-draining and the container is large enough to accommodate the plant’s deep taproot.

Q: Is Astragalus Oocalycis a good source of forage for livestock?

A: Yes, Astragalus Oocalycis is an important source of forage for wildlife and is commonly used as a grazing crop for livestock.

Related Plants

• Astragalus alpinus
• Astragalus cicer
• Astragalus flexuosus
• Astragalus lentiginosus

References

• USDA Plants Database. (n.d.). Astragalus oocalycis A. Gray. Retrieved from https://plants.usda.gov/core/profile?symbol=ASOO
• University of Idaho Extension. (n.d.). Owyhee Milk Vetch. Retrieved from https://www.uidaho.edu/extension/idahogardens/plant-encyclopedia/owyhee-milk-vetch
• CABI. (2021). Astragalus oocalycis. Retrieved from https://www.cabi.org/isc/datasheet/9186