Chamaecrista


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 distributionthe 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'' Benth.

Series ApoucouitaChamaecrista aiarana H.S.Irwin & BarnebyChamaecrista apoucouita H.S.Irwin & BarnebyChamaecrista aspidiifolia H.S.Irwin & BarnebyChamaecrista bahiae H.S.Irwin & BarnebyChamaecrista boyanii H.S.IrwinChamaecrista compitalis H.S.IrwinChamaecrista duartei H.S.Irwin & BarnebyChamaecrista eitenorum H.S.Irwin
Series PteridophyllaeChamaecrista adiantifolia H. S. Irwin & Barneby

Section ''Absus'' DC. ex Colladon emend. Irwin & Barneby

Subsection Absus DC. ex Colladon
Series AbsoideaeChamaecrista acosmifolia H.S.Irwin & Barneby
Series AdenophyllaeChamaecrista adenophylla H.S.Irwin & BarnebyChamaecrista chrysosepala H.S.IrwinChamaecrista hatschbachii H.S.Irwin & BarnebyChamaecrista itabiritoana H.S.Irwin
Series AndromedeaeChamaecrista andromedea H.S.Irwin & Barneby
Series AtroglandulosaeChamaecrista atroglandulosa H.S.Irwin & Barneby
Series BracteolataeChamaecrista bracteolata H.S.Irwin & BarnebyChamaecrista glaziovii H.S.Irwin & BarnebyChamaecrista phyllostachya H.S.Irwin & Barneby
Series CatharticaeChamaecrista cathartica H.S.Irwin & Barneby
Series ConfertaeChamaecrista caespitosa H.S.Irwin & BarnebyChamaecrista conferta H.S.Irwin & Barneby
  • * var. conferta H.S.Irwin & Barneby
  • * var. machrisiana H.S.Irwin & Barneby
  • * var. simulans H.S.Irwin
  • * var. virgata H.S.IrwinChamaecrista crommyotricha H.S.Irwin & Barneby
Series EricifoliaeChamaecrista ericifolia H.S.Irwin & Barneby
Series GeminataeChamaecrista didyma H.S.Irwin & BarnebyChamaecrista geminata H.S.Irwin & Barneby
Series GlutinosaeChamaecrista caracensis H.S.IrwinChamaecrista catiarae H.S.IrwinChamaecrista dentata H.S.Irwin & BarnebyChamaecrista echinocarpa H.S.Irwin & BarnebyChamaecrista fragilis H.S.IrwinChamaecrista kirkbridei H.S.IrwinChamaecrista lentiscifolia H.S.Irwin & BarnebyChamaecrista myrophenges H.S.IrwinChamaecrista punctulifera H.S.Irwin & BarnebyChamaecrista semaphora H.S.IrwinChamaecrista stillifera H.S.Irwin
Series GracillimaeChamaecrista benthamii H.S.Irwin & Barneby
Series HassleranaeChamaecrista hassleri H.S.Irwin
Series HedysaroidesChamaecrista hedysaroides H.S.Irwin & Barneby
Series IncanaeChamaecrista incana H.S.Irwin & Barneby
Series IncurvataeChamaecrista incurvata H.S.Irwin & Barneby
Series LomatopodaeChamaecrista lomatopoda H.S.Irwin & Barneby
Series LucidaeChamaecrista amambaya H.S.IrwinChamaecrista caiapo H.S.IrwinChamaecrista labouriaeae H.S.IrwinChamaecrista lamprosperma H.S.Irwin & BarnebyChamaecrista seticrenata H.S.Irwin
Series MicrophyllaeChamaecrista adenophora H.S.Irwin & BarnebyChamaecrista cristalinae H.S.IrwinChamaecrista dalbergiifolia H.S.Irwin & BarnebyChamaecrista decrescens H.S.Irwin & BarnebyChamaecrista dumalis H.S.Irwin & BarnebyChamaecrista elachistophylla H.S.Irwin & BarnebyChamaecrista foederalis H.S.IrwinChamaecrista harmsiana H.S.Irwin & Barneby Chamaecrista huntii H.S.IrwinChamaecrista imbricans H.S.IrwinChamaecrista isidorea H.S.Irwin & BarnebyChamaecrista neesiana H.S.Irwin & Barneby
Series NigricantesChamaecrista calixtana H.S.IrwinChamaecrista fodinarum H.S.Irwin & BarnebyChamaecrista gilliesii H.S.Irwin & BarnebyChamaecrista glischrodes H.S.Irwin & BarnebyChamaecrista itambana H.S.Irwin & BarnebyChamaecrista lavradiiflora H.S.Irwin & BarnebyChamaecrista machaeriifolia H.S.Irwin & BarnebyChamaecrista philippi H.S.IrwinChamaecrista pilicarpa H.S.Irwin & BarnebyChamaecrista sophoroides H.S.Irwin & BarnebyChamaecrista tephrosiifolia H.S.Irwin & BarnebyChamaecrista urophyllidia H.S.Irwin
Series OchnaceaeChamaecrista bifoliola H.S.Irwin & BarnebyChamaecrista cotinifolia H.S.Irwin & Barneby
Series OligospermaeChamaecrista oligosperma H.S.Irwin & Barneby
Series PaniculataeChamaecrista celiae H.S.IrwinChamaecrista claussenii H.S.Irwin & Barneby
  • * var. claussenii H.S.Irwin & Barneby
  • * var. cyclophylla H.S.Irwin
  • * var. megacycla H.S.IrwinChamaecrista lundii H.S.Irwin & BarnebyChamaecrista orbiculata H.S.Irwin & Barneby
  • * var. cercidifolia H.S.Irwin
  • * var. orbiculata H.S.Irwin & Barneby
  • * var. trichothyrsus H.S.Irwin & Barneby
  • * var. ustulata H.S.IrwinChamaecrista pachyclada H.S.Irwin & BarnebyChamaecrista rigidifolia H.S.Irwin & Barneby
  • * var. rigidifolia H.S.Irwin & Barneby
  • * var. veadeirana H.S.Irwin
Series PinifoliaeChamaecrista paniculata H.S.Irwin & Barneby
Series RigidulaeChamaecrista altoana H.S.IrwinChamaecrista azulana H.S.IrwinChamaecrista benthamiana H.S.Irwin & BarnebyChamaecrista brachyblepharis H.S.Irwin & BarnebyChamaecrista brachyrachis H.S.Irwin & BarnebyChamaecrista chaetostegia H.S.Irwin
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. 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 SecundaeChamaecrista secunda H.S.Irwin & Barneby
Series SetosaeChamaecrista amphibola H.S.IrwinChamaecrista auris-zerdae H.S.IrwinChamaecrista campicola H.S.Irwin & BarnebyChamaecrista obtecta H.S.Irwin & BarnebyChamaecrista ochrosperma H.S.IrwinChamaecrista orenocensis H.S.Irwin & BarnebyChamaecrista scabra H.S.Irwin & BarnebyChamaecrista setosa H.S.Irwin & Barneby
  • * var. detonsa H.S.Irwin & Barneby
  • * var. paucivenia H.S.Irwin
  • * var. setosa H.S.Irwin & Barneby
  • * var. subsetosa H.S.Irwin & Barneby
Series SpinulosaeChamaecrista spinulosa H.S.Irwin
Series StrictifoliaeChamaecrista strictifolia H.S.Irwin & Barneby
Series TrachycarpaeChamaecrista cavalcantina H.S.IrwinChamaecrista trachycarpa H.S.Irwin & Barneby
Series UnijugaeChamaecrista catapodia H.S.IrwinChamaecrista monticola H.S.Irwin & Barneby
Series UrsinaeChamaecrista adamantina H.S.IrwinChamaecrista astrochiton H.S.IrwinChamaecrista aurivilla H.S.Irwin & BarnebyChamaecrista centiflora H.S.IrwinChamaecrista exsudans H.S.Irwin & BarnebyChamaecrista fuscescens H.S.Irwin & BarnebyChamaecrista ixodes H.S.IrwinChamaecrista leucopilis H.S.Irwin & BarnebyChamaecrista ursina H.S.Irwin & BarnebyChamaecrista virginis H.S.IrwinChamaecrista xanthadena H.S.Irwin & Barneby
Subsection Adenophyllum Irwin & BarnebyChamaecrista bucherae H.S.Irwin & Barneby
Subsection Baseophyllum Irwin & BarnebyChamaecrista coriacea H.S.Irwin & BarnebyChamaecrista cytisoides H. S. Irwin & Barneby
  • * var. blanchetii H.S.Irwin & Barneby
  • * var. brachystachya H.S.Irwin & Barneby
  • * var. confertiformis H.S.Irwin
  • * var. cytisoides H. S. Irwin & Barneby
  • * var. decora H.S.Irwin
  • * var. micrantha H.S.Irwin
  • * var. unijuga H.S.Irwin & Barneby
Subsection Otophyllum Irwin & BarnebyChamaecrista debilis H.S.Irwin & Barneby

Section ''Caliciopsis'' Irwin & Barneby

Chamaecrista calycioides GreeneChamaecrista duckeana H.S.Irwin

Section ''Chamaecrista'' Moench

Series Bauhinianae Irwin & BarnebyChamaecrista basifolia H.S.Irwin & BarnebyChamaecrista rotundifolia Greene
  • * var. rotundifolia Greene
  • * var. grandiflora H.S.Irwin & Barneby
Series Chamaecrista MoenchChamaecrista chamaecristoides Greene
Series Coriaceae Irwin & BarnebyChamaecrista anceps H.S.Irwin & BarnebyChamaecrista aristata H.S.Irwin & BarnebyChamaecrista burchellii H.S.Irwin & BarnebyChamaecrista cardiostegia H.S.Irwin & BarnebyChamaecrista caribaea Britton
Series Flexuosae Irwin & BarnebyChamaecrista flexuosa Greene
Series Greggianae Irwin & BarnebyChamaecrista greggii Pollard ex A. H. Heller
  • * var. greggii Pollard ex A. H. Heller
  • * var. macdougaliana H.S.Irwin & Barneby
  • * var. potosina H.S.Irwin & Barneby
Series Prostratae Irwin & BamebyChamaecrista cordistipula H.S.Irwin & BarnebyChamaecrista kunthiana H. S. Irwin & BarnebyChamaecrista pilosa Greene

Section ''Grimaldia'' (Schrank) Irwin & Barneby

Chamaecrista absus H.S.Irwin & Barneby
  • * var. absus H.S.Irwin & Barneby
  • * var. meonandra H.S.Irwin

Section ''Xerocalyx'' (Bentham) Irwin & Barneby

Chamaecrista desvauxii Killip
  • * var. brevipes H.S.Irwin & Barneby
  • * var. desvauxii Killip
  • * var. langsdorffii H.S.Irwin & Barneby
  • * var. latifolia H.S.Irwin & Barneby
  • * var. latistipula G.P.Lewis
  • * var. linearis H.S.Irwin & Barneby
  • * var. malacophylla H.S.Irwin & Barneby
  • * var. mollissima H.S.Irwin & Barneby
  • * var. pirebebuiensis H.S.Irwin & Barneby
  • * var. saxatilis H.S.Irwin & Barneby
  • * var. triumviralis H.S.Irwin & BarnebyChamaecrista diphylla GreeneChamaecrista ramosa H.S.Irwin & Barneby
  • * var. curvifolia G.P.Lewis
  • * var. erythrocalyx H.S.Irwin & Barneby
  • * var. lucida H.S.Irwin & Barneby
  • * var. parvifoliola H.S.Irwin & Barneby
  • * var. ramosa H.S.Irwin & Barneby
  • * var. ventuarensis H.S.Irwin & Barneby

''[Incertae sedis]''

Chamaecrista africana LockChamaecrista aldabrensis F. FriedmannChamaecrista amabilis H.S.Irwin & BarnebyChamaecrista amorimii BarnebyChamaecrista anamariae Conc., L.P. Queiroz & G.P. LewisChamaecrista angustissima GreeneChamaecrista ankaratrensis Du PuyChamaecrista arachiphylla BarnebyChamaecrista arboae BarnebyChamaecrista arenicola Du Puy

Species names with uncertain taxonomic status

The status of the following species is unresolved:Chamaecrista bella Conc., L.P.Queiroz & G.P.LewisChamaecrista biddulphiana PedleyChamaecrista bissei A.Barreto & YakovlevChamaecrista ×blanchetiformis Conc., L.P.Queiroz & BorbaChamaecrista blanchetii Conc., L.P.Queiroz & G.P.LewisChamaecrista burmanni Eckl. & Zeyh.Chamaecrista commixta auct.Chamaecrista cupeyalensis A.Barreto & YakovlevChamaecrista deserti PedleyChamaecrista exigua PedleyChamaecrista falcifoliolata A.Barreto & YakovlevChamaecrista grisea PedleyChamaecrista guanensis A.Barreto & YakovlevChamaecrista macambensis A.Barreto & YakovlevChamaecrista maritima PedleyChamaecrista moorei PedleyChamaecrista mwangokae Gereau & G.M.WaltersChamaecrista nana Conc., L.P.Queiroz & G.P.LewisChamaecrista ×patyensis Conc., L.P.Queiroz & BorbaChamaecrista rusbyi Britton & Rose ex PittierChamaecrista symonii PedleyChamaecrista takhtajanii A.Barreto & YakovlevChamaecrista vestita GovaertsChamaecrista xanthadena Govaerts