Genus of legumes
Chamaecrista is a genus of flowering plants in the pea family, Fabaceae, subfamily Caesalpinioideae. Members of the genus are commonly known as sensitive pea. Several species are capable of rapid plant movement. Unlike the related genera "Cassia" and "Senna", members of "Chamaecrista" form root nodules.
"Chamaecrista" has 367 species, with a wide distribution – the Americas from Minnesota to northern Argentina, sub-Saharan Africa, the Arabian Peninsula and Iran, the Indian Subcontinent, Indochina, China, Korea, Japan, Malesia, New Guinea, and Australia.
Species.
"Chamaecrista" comprises the following species, organized into sections, subsections, and series:
Section "Apoucouita".
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Series Apoucouita
Series Pteridophyllae
Section "Absus".
Subsection "Absus" 
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Series "Absoideae"
Series "Adenophyllae"
Series "Andromedeae"
Series "Atroglandulosae"
Series "Bracteolatae"
Series "Catharticae"
Series "Confertae"
Series "Ericifoliae"
Series "Geminatae"
Series "Glutinosae"
Series "Gracillimae"
Series "Hassleranae"
Series "Hedysaroides"
Series "Incanae"
Series "Incurvatae"
Series "Lomatopodae"
Series "Lucidae"
Series "Microphyllae"
Series "Nigricantes"
Series "Ochnaceae"
Series "Oligospermae"
Series "Paniculatae"
Series "Pinifoliae"
Series "Rigidulae"
As traditionally circumscribed here, "Chamaecrista" ser. "Rigidulae" is polyphyletic. However, the series is monophyletic if redefined to exclude "C. brachyblepharis" and "C. ciliolata" and include "C. sincorana" and "C. botryoides" (from series "Microphyllae"). The species in the series are all endemic to Brazil and can be divided geographically into two main lineages, one from the highlands of Goiás, and the second from the Espinhaço Range of Bahia and Minas Gerais.
Series "Secundae"
Series "Setosae"
Series "Spinulosae"
Series "Strictifoliae"
Series "Trachycarpae"
Series "Unijugae"
Series "Ursinae"
Subsection "Adenophyllum" 
Subsection "Baseophyllum" 
Subsection "Otophyllum" 
Section "Chamaecrista".
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Series "Bauhinianae" 
Series "Chamaecrista" 
Series "Coriaceae" 
Series "Flexuosae" 
Series "Greggianae" 
Series "Prostratae" 
"Incertae sedis".
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Species names with uncertain taxonomic status.
The status of the following species is unresolved:
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References.
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