Cryptantha s.s. (54 species)
C. affinis (A. Gray) Greene
C. albida (Kunth) I. M. Johnston †
C. ambigua (A. Gray) Greene
C. barbigera (A. Gray) Greene
   var. barbigera
   var. fergusoniae J.F. Macbride
C. clevelandii Greene
   var. clevelandii
   var. florosa I. M. Johnston
C. clokeyi I. M. Johnston  
C. corollata (I. M. Johnston) I. M. Johnston
C. crassisepala (Torrey & A. Gray) Greene
C. crinita Greene  
C. decipiens (M. E. Jones) A. Heller
C. dissita I. M. Johnston
C. dumetorum (Greene ex A. Gray) Greene
C. echinella Greene
C. excavata Brandegee
C. fendleri (A. Gray) Greene
C. flaccida (Douglas ex Lehmann) Greene 
C. foliosa (Greene) Greene
C. ganderi I. M. Johnston  
C. glomeriflora Greene  
C. gracilis Osterhout
C. gypsites I. M. Johnston
C. hispidula Greene ex Brand  
C. hooveri I. M. Johnston
C. incana Greene  
C. intermedia (A. Gray) Greene 
   var. hendersonii (A. Nelson) Jepson & Hoover
   var. intermedia
C. kelseyana Greene
C. leiocarpa (Fischer & C. A. Meyer) Greene
C. mariposae I. M. Johnston
C. maritima (Greene) Greene †
   var. cedrosensis (Greene) I. M. Johnston
   var. maritima
   var. pilosa I. M. Johnston
C. mexicana I. M. Johnston
C. microstachys (Greene ex A. Gray) Greene
C. milobakeri I. M. Johnston  
C. minima Rydberg
C. mohavensis (Greene) Greene
C. muricata (Hooker & Arnott) A. Nelson & J. F. Macbride
   var. denticulata (Greene) I. M. Johnston
   var. jonesii (A. Gray) I. M. Johnston
   var. muricata
C. nemaclada Greene
C. nevadensis A. Nelson & P. B. Kennedy
   var. nevadensis
   var. rigida I.M. Johnston
C. oxygona (A. Gray) Greene
C. pattersonii Greene [Note: taxon questionable]
C. patula Greene
C. pterocarya (Torrey) Greene 
   var. cycloptera (Greene) J.F. Macbride
   var. pterocarya
   var. purpusii Jepson
C. rattanii Greene
C. recurvata Coville
C. rostellata (Greene) Greene
C. scoparia A. Nelson
C. simulans Greene
C. sparsiflora (Greene) Greene
C. spithamaea I. M. Johnston
C. texana Greene
C. torreyana (A. Gray) Greene
   var. pumila (A. Heller) I. M. Johnston
   var. torreyana
C. traskiae I. M. Johnston
C. utahensis (A. Gray) Greene
C. watsonii (A. Gray) Greene
C. wigginsii I. M. Johnston

Eremocarya (1 species)
C. micrantha (Torrey) I. M. Johnston
   var. lepida (A. Gray) I. M. Johnston
   var. micrantha

Greeneocharis [Piptocalyx] (2 species)
C. circumscissa (Hooker & Arnott) I. M. Johnston †
   var. circumscissa
   var. rosulata J.T. Howell
C. similis K. Mathew & P.H. Raven

Johnstonella (11 species)
C. angelica I. M. Johnston
C. angustifolia (Torrey) Greene
C. costata Brandegee  
C. echinosepala J. F. MacBride
C. fastigiata I. M. Johnston
C. grayi (Vasey & Rose) Macbride 
   var. cryptochaeta I. M. Johnston
   var. grayi  
   var. nesiotica I. M. Johnston 
C. holoptera (A. Gray) J. F. Macbride
C. inaequata I. M. Johnston
C. micromeres (A. Gray) Greene
C. pusilla (Torrey & A. Gray) Greene
C. racemosa (S. Watson ex A. Gray) Greene

Oreocarya (61 species)
C. abata I. M. Johnston
C. aperta (Eastwood) Payson
C. atwoodii Higgins
C. bakeri (Greene) Payson
C. barnebyi I. M. Johnston
C. breviflora (Osterhout) Payson
C. caespitosa (A. Nelson) Payson
C. cana (A. Nelson) Payson
C. capitata (Eastwood) I. M. Johnston
C. celosioides (Eastwood) Payson
C. cinerea (Greene) Cronquist
   var. abortiva (Greene) Cronquist
   var. arenicola L. C. Higgins & S. L. Welsh
   var. cinerea [C. c. var. multicaulis]
   var. disticha
   var. jamesii Cronquist
   var. laxa (MacBride) L. C. Higgins
   var. pustulosa (Rydberg) L. C. Higgins
   var. setosa
C. compacta Higgins
C. confertiflora (Greene) Payson
C. crassipes I. M. Johnston
C. creutzfeldtii S. L. Welsh
C. crymophila I. M. Johnston 
C. elata (Eastwood) Payson
C. flava (A. Nelson) Payson
C. flavoculata (A. Nelson) Payson
C. fulvocanescens (S. Watson) Payson
C. grahamii I. M. Johnston
C. gypsophila Reveal & C. R. Broome
C. hoffmannii I. M. Johnston
C. humilis (A. Gray) Payson
C. hypsophila I. M. Johnston
C. interrupta (Greene) Payson
C. johnstonii Higgins
C. jonesiana (Payson) Payson
C. leucophaea (Douglas) Payson
C. longiflora (A. Nelson) Payson
C. mensana (M. E. Jones) Payson
C. nubigena (Greene) Payson
C. oblata (M. E. Jones) Payson
C. ochroleuca Higgins
C. osterhoutii (Payson) Payson
C. palmeri (A. Gray) Payson
C. paradoxa (A. Nelson) Payson
C. paysonii (J. F. Macbride) I. M. Johnston
C. propria (A. Nelson & J. F. Macbride) Payson
C. pustulosa (Rydberg) Payson
C. rollinsii I. M. Johnston
C. roosiorum Munz  
C. rugulosa (Payson) Payson
C. salmonensis (A. Nelson & J. F. MacBride) Payson
C. schoolcraftii Tiehm
C. semiglabra Barneby
C. sericea (A. Gray) Payson
C. setosissima (A. Gray) Payson
C. shackletteana Higgins
C. sobolifera Payson
C. spiculifera (Piper) Payson
C. stricta (Osterhout) Payson
C. subretusa I. M. Johnston
C. tenuis (Eastwood) Payson
C. thompsonii I. M. Johnston
C. thrysiflora (Greene) Payson
C. tumulosa (Payson) Payson
C. virgata (Porter) Payson
C. virginensis (M. E. Jones) Payson
C. weberi I. M. Johnston
C. wetherillii (Eastman) Payson