Eremocarya (2 species)
C. lepida (A. Gray) I. M. Johnston
C. micrantha (Torrey) I. M. Johnston

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

Oreocarya (69 species)
C. abata I. M. Johnston
C. aperta Payson
C. bakeri (Greene) Payson
C. barnebyi I. M. Johnston
C. bradburiana Payson
C. breviflora (Osterhout) Payson
C. caespitosa (A. Nelson) Payson
C. cana (A. Nelson) Payson
C. capitata (A. Nelson) Payson
C. celosioides (Eastwood) Payson
C. cinerea (Greene) Cronquist
   var. abortiva (Greene) Cronquist
C. compacta Higgins
C. confertiflora (Greene) Payson
C. crassipes I. M. Johnston
C. crymophila I. M. Johnston 
C. echinoides (Jones) Payson
C. elata (Eastwood) Payson
C. flava (A. Nelson) Payson
C. flavoculata (A. Nelson) Payson
C. fulvocanescens Payson
C. grahamii I. M. Johnston
C. gypsophila Reveal & C. R. Broome
C. hoffmannii I. M. Johnston
C. howellii R. B. Kelley
C. humilis (A. Gray) Payson
C. hysophila I. M. Johnston
C. insolita (Macbride) Payson
C. interrupta (Greene) Payson
C. jamesii (Torrey) Payson 
C. johnstonii Higgins
C. jonesiana (Payson) Payson)
C. leucophaea (Fisher & C. A. Meyer) Greene
C. longiflora (A. Nelson) Payson
C. macounii (Eastwood) Payson
C. mensana Payson
C. modesta Payson
C. nana (Eastwood) 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 (Macbride) I. M. Johnston
C. propria (Nelson & Macbride) Payson
C. pustulosa (Rydberg) Payson
C. rollinsii I. M. Johnston
C. roosiorum Munz  
C. rugulosa (Payson) Payson
C. salmonensis (Nelson & MacBride) Payson
C. schoolcraftii Tiehm
C. semiglabra Barneby
C. sericea A. Gray
C. setosissima (A. Gray) Payson
C. shackletteana Higgins
C. sheldonii (Brand) Payson
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. vulcanica R. B. Kelley  
C. weberi I. M. Johnston
C. wetherillii (Eastman) Payson

Krynitzkia (64 species)

Krynitzkia - smooth nutlets
C. affinis (A. Gray) Greene
C. clevelandii Greene
   var. clevelandii
   var. florosa I. M. Johnst.
C. fendleri (A. Gray) Greene
C. flaccida (Lehmann) Greene 
C. ganderi I. M. Johnston  
C. glomeriflora Greene  
C. gracilis Osterhout
C. grayi (Vasey & Rose) Macbride *
   var. grayi
C. hispidula Brand  
C. incana Greene  
C. leiocarpa (Fischer & C. Meyer) Greene
C. maritima (Greene) Greene †*
   var. maritima *
C. microstachys (A. Gray) Greene
C. milobakeri I. M. Johnston  
C. mohavensis (Greene) Greene
C. nemaclada Greene
C. rostellata (Greene) Greene
C. sparsiflora (Greene) Greene
C. spithamea I. M. Johnston
C. torreyana (A. Gray) Greene
C. watsonii (A. Gray) Greene

Krynitzkia - rough, winged-rimmed, heteromorphic nutlets
C. angelica I. M. Johnston
C. fastigiata I. M. Johnston
C. inaequata I. M. Johnston
C. pterocarya (Torrey) Greene *
   var. pterocarya
   var. purpusii Jeps.
C. racemosa (Watson) Greene

Krynitzkia - rough, winged-rimmed, homomorphic nutlets
C. costata Brandegee  
C. holoptera (A. Gray) J. F. Macbride
C. oxygona (A. Gray) Greene
C. pterocarya (Torrey) Greene *
   var. cycloptera (Greene) J.F. Macbr.
C. pusilla (Torrey & A. Gray) Greene
C. utahensis (A. Gray) Greene

Krynitzkia - rough, unwinged, heteromorphic nutlets
C. angustifolia (Torrey) Greene *
C. crassisepela (Torrey & A. Gray) Greene
C. dumetorum (Greene) Greene
C. echinosepala J. F. MacBride
C. maritima (Greene) Greene †*
   var. cedrosensis (Green) I. M. Johnston
   var. maritima *
C. micromeres (A. Gray) Greene
C. minima Rydberg

Krynitzkia - rough, unwinged, homomorphic nutlets
C. albida (Kunth) I. M. Johnston †
C. ambigua (A. Gray) Greene
C. angustifolia (Torrey) Greene *
C. barbigera (A. Gray) Greene
   var. barbigera
   var. fergusonae J.F. Macbr.
C. clokeyi I. M. Johnston  
C. corollata (I. M. Johnston) I. M. Johnston
C. crinita Greene  
C. decipiens (M. E. Jones) A. Heller
C. dissita I. M. Johnston 
C. echinella Greene
C. excavata Brandegee
C. foliosa (Greene) Greene
C. grayi (Vasey & Rose) Macbride *
   var. cryptochaeta (Macbr.) I. M. Johnston
   var. grayi
   var. nesiotica I. M. Johnston
C. hooveri I. M. Johnston
C. intermedia (A. Gray) Greene
   var. grandiflora (Rydb.) Cronquist
   var. intermedia
C. mariposae I. M. Johnston
C. mexicana I. M. Johnston
C. muricata (Hooker & Arnott) Nelson & J. F. Macbride
   var. denticulata (Greene) I. M. Johnst.
   var. jonesii (A. Gray) I. M. Johnst.
   var. muricata
C. nevadensis Nelson & Kennedy
   var. nevadensis
   var. rigida I.M. Johnst.
C. pattersonii Greene
C. patula Greene
C. pondii Greene
C. recurvata Coville
C. scoparia A. Nelson
C. simulans Greene
C. texana Greene
C. traskiae I. M. Johnston
C. wigginsii I. M. Johnston



Unplaced at present
C. kelseyana Greene - heteromorphic