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Siberian Peashrub (Caragana arborescens)
The Siberian peashrub, also known as the Siberian pea-tree or simply caragana, is a hardy and versatile plant often used for windbreaks and ornamental purposes.
Considerations for Pets
- Reports suggest this plant contains toxins.
- The text mentions edible seeds.
Considerations for Children
- The text mentions edible seeds.
Nomenclature and Taxonomy
- Scientific Name: Caragana arborescens
- Common Names: Siberian peashrub, Siberian pea-tree, caragana, pea shrub, pea tree, Weeping Pea Tree, Russian Pea Shrub.
- Family: Fabaceae (also known as Leguminosae), the Pea family
- Synonyms: The text does not explicitly list synonyms but refers to alternative scientific names for varieties.
- Plant Symbol: CAAR18 (USDA PLANTS Symbol)
Distribution and Habitat
- Native to Siberia, Manchuria, and parts of China (Heilongjiang).
- Introduced to North America in the mid-1700s.
- Has escaped cultivation in Maine, Vermont, and Massachusetts.
Morphology and Growth Habits
- Deciduous shrub or small tree.
- Can grow up to 15-18 feet in height and 10 feet in width, although some varieties may remain smaller (e.g., Caragana pygmeae).
- Typically multistemmed with erect to spreading branches.
- Gray bark and branches.
- Fast growth rate.
- Flowers are yellow and pea-like, appearing in spring.
- Produces abundant lush foliage and numerous seed pods.
Ecological Role
- Nitrogen-fixing shrub.
- Used as a windbreak cover or screen.
Interactions with Other Organisms
- Flowers attract hummingbirds and bees.
- Mentioned as a potential protein source for poultry and hogs.
Cultivation and Uses
- Hardy and drought-tolerant.
- Suitable for hard-to-plant exposed locations.
- Tolerates alkaline soil.
- Often planted in gardens for its showy flowers.
- Can be trained into a small tree or used as a hedge.
Resources
- National Plant Data Center (http://npdc.usda.gov)
- Dave's Garden
- Monrovia plants