Description

• Mesosphaerum suaveolens, commonly known as wide spikenard, is an aromatic annual or short-lived perennial herb in the mint family (Lamiaceae). It has branching, often hairy stems and opposite, ovate leaves with toothed margins that release a strong, mint-like scent when crushed. Small, tubular flowers, usually pale blue, lilac, or whitish, grow in dense, rounded clusters around the stems at the leaf axils. The plant produces small nutlets and can form bushy stands in open, disturbed areas.

Range

• Mesosphaerum suaveolens is native to tropical America, including Mexico, Central America, the Caribbean, and parts of South America. It has spread widely through other tropical regions and is considered invasive in some locations. It is native to Zihuatanejo, Guerrero, and the surrounding area.

Habitat

• This species grows in warm, sunny habitats, including roadsides, pastures, agricultural fields, forest edges, scrub, and other disturbed areas. It favours open ground and can thrive in seasonally dry climates where rainfall supports rapid growth. Its aromatic foliage and abundant seed production help it persist and spread in disturbed landscapes.