Description

• Macroptilium lathyroides, commonly known as phasey bean, wild bush bean, or wild pea, is an annual or short-lived perennial herb in the legume family (Fabaceae). It has erect or sprawling stems and compound leaves divided into three leaflets, which are usually oval to lance-shaped. Its pea-shaped flowers are typically reddish-purple to maroon, sometimes with paler markings, and grow in elongated clusters on upright stalks. The flowers develop into slender, elongated pods containing several seeds. Like other legumes, it can fix atmospheric nitrogen through associations with bacteria in its root nodules.

Range

• Macroptilium lathyroides is native to tropical America, including Mexico, Central America, the Caribbean, and South America. It has been introduced widely in tropical and subtropical regions, particularly as a forage plant, and is naturalized in many areas. It is established in Zihuatanejo, Guerrero, and the surrounding area.

Habitat

• It grows in warm, open habitats, including grasslands, tropical woodland margins, roadsides, pastures, agricultural fields, and disturbed ground. It is often found in seasonally moist soils and can tolerate temporary waterlogging, although it also grows in well-drained sites. Its rapid growth and abundant seed production help it colonize open ground, especially during the rainy season.