Case'S Milkvetch
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Case'S Milkvetch
astragalus casei
Case's Milkvetch (Astragalus casei) is a distinctive perennial herb belonging to the expansive pea family (Fabaceae), known for its resilience in arid and semi-arid environments of the western United States. This unassuming yet vital plant plays a crucial ecological role, often found clinging to rocky slopes and sandy flats where other vegetation struggles. It is characterized by its sprawling growth habit and delicate, pea-like flowers, which bring subtle beauty to harsh landscapes. Like many of its legume relatives, Astragalus casei is capable of nitrogen fixation, enriching the soil and supporting a complex web of life in its native habitats. Its hardy nature and unique adaptations make it a fascinating subject for botanists and a significant component of the local flora.
Hábitat: Case's Milkvetch thrives in dry, open habitats, including sagebrush scrub, pinyon-juniper woodlands, and rocky slopes with sandy or gravelly, often volcanic, soils at elevations ranging from 1,200 to 2,800 meters.
Aspecto
This perennial plant typically forms low, matted growths, often appearing somewhat sprawling or cushion-like. Its leaves are pinnately compound, meaning they consist of multiple small leaflets arranged along a central stem, often with a silvery-green or gray-green hue due to fine hairs. The flowers, emerging from short stalks, are typical pea-shaped blossoms, usually purplish, pinkish, or sometimes cream to whitish, arranged in short, dense clusters. After flowering, it produces distinctive, often inflated or leathery, pea-like pods (legumes) that contain its seeds, which are a key identifier for the genus. The plant generally reaches a height of 10-30 cm.
ReinoPlantaeFiloTracheophytaClaseMagnoliopsidaOrdenFabalesFamiliaFabaceaeGéneroAstragalus
Categoría
PlantasRareza
Common
Peligro
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Datos interesantes
Case's Milkvetch is an important food source and habitat component for various native insects and small mammals in its arid ecosystem.
Many milkvetch species are known for producing a potent neurotoxin called swainsonine, which can be harmful to grazing livestock, though not all species are toxic.
The Fabaceae family, to which Case's Milkvetch belongs, is the third-largest family of flowering plants, with over 19,000 species worldwide.
The genus name Astragalus is derived from the Greek word for ankle bone, possibly referring to the shape of the seeds or pods of some species.
Habilidades especiales
Habilidad
Nitrogen Fixation
The plant forms a symbiotic relationship with specific soil bacteria in its root nodules, allowing it to convert atmospheric nitrogen into a usable form, enriching nutrient-poor soils.
Habilidad
Drought Tolerance
Adaptations such as a deep taproot system and potentially hairy leaves help reduce water loss, enabling it to survive prolonged dry periods in arid environments.
Habilidad
Harsh Soil Adaptation
It is specifically adapted to grow in challenging substrates like volcanic ash, gravelly flats, and sandy soils, where competition from other plants is limited.
Medidas y detalles
- Longitud
- 10-30 cm
- Peso
- 0.01-0.1 kg
- Esperanza de vida
- 3-10 años
- Tamaño de la puesta
- 50-500
Dieta y alimentación
Case's Milkvetch, as an autotrophic plant, produces its own food through photosynthesis, converting sunlight, water, and carbon dioxide into sugars. It also absorbs essential mineral nutrients from the soil via its root system.
Alimentos principales
- Sunlight
- Water
- Carbon Dioxide
- Nitrogen
- Phosphorus
- Potassium
Método de búsqueda
- Nutrient Absorption
Conexiones ecológicas
mutualism
Western Bumblebee
Bombus occidentalis
Pollinates flowers
eaten by
Mule Deer
Odocoileus hemionus
Herbivory on foliage and seeds
mutualism
Rhizobium bacteria
Rhizobium leguminosarum
Nitrogen-fixing symbiosis
host plant
Western Tailed-Blue
Cupido amyntula
Larval host plant
Rasgos
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También conocido como
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Seguridad
Peligro
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Preguntas frecuentes
¿Cómo identificar a Case'S Milkvetch?
La forma más fácil de identificar a Case'S Milkvetch es usar la aplicación de identificación de naturaleza Snappit.
¿Cuál es el longitud de Case'S Milkvetch?
10-30 cm
¿Cuál es el peso de Case'S Milkvetch?
0.01-0.1 kg
¿Cuál es el esperanza de vida de Case'S Milkvetch?
3-10 años
¿Qué come Case'S Milkvetch?
Case's Milkvetch, as an autotrophic plant, produces its own food through photosynthesis, converting sunlight, water, and carbon dioxide into sugars. It also absorbs essential mineral nutrients from the soil via its root system.
¿Dónde se encuentra normalmente Case'S Milkvetch?
Case's Milkvetch thrives in dry, open habitats, including sagebrush scrub, pinyon-juniper woodlands, and rocky slopes with sandy or gravelly, often volcanic, soils at elevations ranging from 1,200 to 2,800 meters.
¿Cómo caza Case'S Milkvetch?
Nutrient Absorption
¿Cuál es el tamaño de la puesta de Case'S Milkvetch?
50-500
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