Baccharis halimifolia

Baccharis halimifolia, also known as groundsel tree, salt bush, or sea myrtle, is a North American species of shrubs in the aster family. It is native to coastal areas of the eastern and southern United States, as well as parts of Mexico and the Caribbean.

Description

Baccharis halimifolia is a deciduous shrub that typically grows to a height of 1–4 meters. The leaves are alternate, simple, and 2–7 cm long. The upper surface of the leaves is dark green and the lower surface is white with dense, woolly hairs. The flowers are small, white, and appear in dense clusters. The fruit is a small achene.

Distribution and habitat

Baccharis halimifolia is found in coastal areas from Massachusetts south to Florida and west to Texas in the United States. It also occurs in parts of Mexico and the Caribbean. The species is typically found in salt marshes, dunes, and coastal prairies.

Ecology

Baccharis halimifolia is a pioneer species, often colonizing disturbed areas. It is tolerant of salt and can grow in saline conditions, making it an important species in coastal ecosystems. The plant provides habitat and food for a variety of wildlife, including birds and insects.

Uses

Historically, Baccharis halimifolia has been used in traditional medicine. The leaves have been used to treat rheumatism and kidney problems. The plant has also been used as a windbreak and for erosion control in coastal areas.

Conservation

While Baccharis halimifolia is not currently considered threatened, it is vulnerable to habitat loss due to coastal development and sea level rise.