Chamaecrista absus

Chamaecrista absus (syn. Cassia absus), the pig's senna or tropical sensitive pea, is a species of flowering plant in the family Fabaceae, with a worldwide distribution in the tropics and subtropics.^[1][2] An annual herb reaching 60 cm (24 in), it is a common weed of cultivated and waste places, and its seeds are regularly harvested and sold for use in traditional medicine in Africa and Asia.^[3]

Chamaecrista absus
Close-up of flowers
Leaves and flowers
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Caesalpinioideae
Genus:	Chamaecrista
Species:	C. absus
Binomial name
Chamaecrista absus (L.) H.S.Irwin & Barneby
Synonyms[1]
List Cassia absus L. Cassia absus var. meonandra H.S.Irwin & Barneby Cassia acacalis Royle Cassia babylonica Schrank Cassia coccinea Wall. Cassia exigua (Roxb.) Steud. Cassia thonningii DC. Cassia viscida Zoll. & Moritzi Cassia viscosa Schumach. & Thonn. Grimaldia absus (L.) Link Grimaldia opifera Schrank Senna absus (L.) Roxb. Senna exigua Roxb.

Subtaxa

The following varieties are accepted:^[1]

• Chamaecrista absus var. absus – entire range
• Chamaecrista absus var. meonandra (H.S.Irwin & Barneby) H.S.Irwin & Barneby - Arizona, Mexico, Honduras