Sphaeralcea

Sphaeralcea is a genus of flowering plants in the mallow family, Malvaceae. The genus is native to North America, with species ranging from Mexico to Canada. The name "Sphaeralcea" is derived from the Greek words "sphaera," meaning "sphere," and "alke," meaning "mallow," reflecting the spherical shape of the plant's seeds. The genus includes approximately 30 species, which are commonly known as globe mallow or globe amaranth.

Sphaeralcea species are annual or perennial herbs, often growing to a height of 1 to 3 meters. They typically have alternate, ovate to lanceolate leaves and showy, often fragrant flowers that are typically white or pinkish, with five petals. The flowers are usually borne in clusters at the ends of the stems. The fruit is a capsule containing numerous seeds, which are often spherical and have a distinctive, glossy appearance.

Sphaeralcea species are valued for their ornamental qualities, with many being cultivated for their attractive flowers and foliage. Some species are also used in traditional medicine and as food sources. For example, the seeds of Sphaeralcea angustifolia are edible and have been used as a substitute for coffee. The plant's ability to fix nitrogen in the soil also makes it a valuable component of sustainable agriculture practices.

Despite their ornamental and practical uses, Sphaeralcea species face threats from habitat loss and invasive species. Conservation efforts are ongoing to protect these plants and their habitats.