Sphaeralcea incana

Gray Globemallow Wildflower Center Austin Texas 2024

Sphaeralcea incana, commonly known as gray globemallow or hoary globemallow, is a species of flowering plant in the mallow family (Malvaceae). This perennial herb is native to the southwestern United States and northern Mexico, where it thrives in desert and other arid environments. It is characterized by its distinctive grayish-green foliage and vibrant orange to pink flowers, which bloom from early spring to late summer, providing a splash of color in arid landscapes.

Description

Sphaeralcea incana is a perennial herb that can grow to a height of 0.5 to 1 meter. Its stems are covered in a fine layer of grayish hairs, giving the plant its characteristic hoary appearance. The leaves are alternate, broadly ovate to nearly round, with scalloped or lobed edges, and are similarly covered in fine hairs.

The flowers of Sphaeralcea incana are its most striking feature. They are borne in loose, terminal clusters and are typically bright orange, although variations in pink and red are also common. Each flower has five petals, which are notched at the tips, surrounding a central column of stamens and styles. The blooming period is long, often extending from March to September, depending on the local climate and conditions.

Habitat and Distribution

Sphaeralcea incana is adapted to a wide range of arid habitats, including desert scrub, grasslands, and rocky slopes. It is found at elevations from sea level to about 2,500 meters. In the United States, it is primarily located in the southwestern states such as Arizona, New Mexico, and Texas. In Mexico, its range extends from the northern border regions down into the central part of the country.

Cultivation and Uses

While not widely cultivated, Sphaeralcea incana is occasionally grown in gardens specializing in native plants or xeriscaping due to its drought tolerance and attractive flowers. It prefers full sun and well-drained soils. Once established, it requires minimal water and care, making it an ideal plant for low-maintenance and water-efficient landscapes.

In addition to its ornamental value, Sphaeralcea incana has been used in traditional medicine by indigenous peoples of the region. Various parts of the plant have been used to treat ailments such as sore throats, gastrointestinal issues, and skin irritations, although scientific evidence supporting these uses is limited.

Conservation

Currently, Sphaeralcea incana does not face any major threats and is not listed as endangered or vulnerable. However, habitat destruction and overgrazing pose potential risks to its populations. Conservation efforts are focused on habitat preservation and promoting the use of native plants in landscaping to reduce water use and support local ecosystems.

See Also

• Malvaceae
• Perennial plant
• Xeriscaping
• Native plants of the Southwestern United States