Devil's claw (yellow flower)
Proboscidea lutea
Proboscidea lutea, commonly known as yellowhorn or devil's claw, is a herbaceous plant belonging to the Martyniaceae family. Here's a detailed description:
Botanical Description:
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Habit:
- Yellowhorn is an annual or perennial herbaceous plant that can grow up to 1.5 meters (5 feet) tall.
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Leaves:
- The leaves are large, simple, and palmately lobed, resembling the shape of a hand.
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Stems:
- The stems are erect, branching, and may be covered with fine hairs.
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Flowers:
- The flowers are trumpet-shaped and yellow, with a distinctive, elongated tube that gives rise to the common name "yellowhorn."
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Fruit:
- The most notable feature of yellowhorn is its fruit, which is a unique woody capsule with long, hooked appendages resembling claws. These capsules split open when mature, revealing the seeds.
Identification Tips:
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Trumpet-shaped Yellow Flowers:
- Look for the distinctive yellow, trumpet-shaped flowers.
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Palmately Lobed Leaves:
- The large, palmately lobed leaves are a key feature.
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Woody Clawed Capsules:
- The woody capsules with long, hooked appendages are a distinctive characteristic.
Habitat:
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Distribution:
- Yellowhorn is native to the southwestern United States and northern Mexico.
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Habitat:
- It is commonly found in sandy or gravelly soils in desert habitats, along roadsides, and in disturbed areas.
Ecological Role:
- Wildlife Interaction:
- The unique clawed capsules are adapted for dispersal by attaching to the fur or feathers of animals.
Uses:
- Traditional Medicine:
- In some traditional medicine practices, various parts of the plant have been used for their purported medicinal properties.
Cultivation:
- Adaptability:
- Yellowhorn is adapted to arid conditions and is well-suited to xeriscaping in gardens with dry, sandy soils.
Caution:
- Invasiveness:
- In some regions, yellowhorn can be invasive, particularly in disturbed areas. Check local regulations before planting it in a garden.









