Heliotropium arboreum

Heliotropium arboreum is a species of flowering plant in the boraginaceae family, known by several common names including tree heliotrope, velvety tree heliotrope, and turnsole. This species is notable for its attractive foliage and fragrant flowers, which have made it a popular choice for gardens and landscapes in tropical and subtropical regions around the world.

Description

Heliotropium arboreum is a small tree or large shrub that can reach heights of up to 5 meters. Its leaves are broad, dark green, and covered with fine hairs, giving them a velvety texture. The plant produces clusters of small, fragrant flowers that are typically white or light purple in color. These flowers are known to attract a variety of pollinators, including bees and butterflies.

The plant is also known for its unique ability to follow the sun, a phenomenon known as heliotropism, which is where its common name, "heliotrope," originates. This characteristic allows the plant to maximize sunlight exposure for photosynthesis.

Distribution and Habitat

Heliotropium arboreum is native to the Americas, where it can be found from Mexico to South America. It has also been introduced to other tropical and subtropical regions, including parts of Africa, Asia, and the Pacific Islands. It typically grows in coastal areas, often in sandy soils, and can also be found in disturbed areas and along roadsides.

Cultivation and Uses

Heliotropium arboreum is widely cultivated for its ornamental value. It is prized for its attractive foliage, fragrant flowers, and the shade it provides. The plant is relatively easy to grow in warm climates, requiring well-drained soil and full sun to partial shade. It is drought-tolerant once established but benefits from regular watering during dry periods.

In addition to its use in landscaping, Heliotropium arboreum has been used in traditional medicine in some cultures. However, it is important to note that parts of the plant, particularly the seeds, contain alkaloids that can be toxic if ingested.

Conservation

While Heliotropium arboreum is not currently listed as endangered, its natural habitats are under threat from urbanization, agriculture, and climate change. Conservation efforts are important to ensure the survival of this species in the wild.

Gallery

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See Also

• Boraginaceae
• Heliotropism
• Ornamental plant

References

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