Karwinskia pluvialis A.Pool species accepted

Karwinskia californica Axelrod, 1939 species accepted

Karwinskia rzedowskii R.Fern. species accepted

Karwinskia calderoniae Standl. species accepted

Karwinskia venturii R.Fernández species accepted

Karwinskia humboldtiana S.Watson species doubtful

Karwinskia parvifolia Rose species accepted

Karwinskia oblongifolia (Britton & P.Wilson) Urb. species accepted

Karwinskia calderonii Standl. species accepted

Karwinskia humboldtiana (Roem. & Schult.) Zucc. species accepted

Ziziphus umbellata (Cav.) Poir. species synonym

Rhamnidium potrerilloanum Borhidi & Muniz species synonym

Rhamnidium orbiculatum Britton & P.Wilson species synonym

Rhamnidium oblongifolium Britton & P.Wilson species synonym

Rhamnidium caloneurum Standl. species synonym

Rhamnidium bicolor Britton & P.Wilson species synonym

Rhamnus humboldtiana Roem. & Schult. species synonym

Karwinskia venturae R.Fern. species accepted

Karwinskia umbellata (Cav.) Schltdl. species accepted

Karwinskia tehuacana R.Fern. & N.Waksman species accepted

Karwinskia subcordata Schltdl. species accepted

Karwinskia sessilifolia Schltdl. species synonym

Karwinskia rocana (Britton & P.Wilson) Urb. species accepted

Karwinskia pubescens Standl. species synonym

Karwinskia potrerilloana (Borhidi & Muniz) Borhidi species accepted

Karwinskia parvifolia var. pubescens (Standl.) Wiggins variety synonym

Karwinskia orbiculata (Britton & P.Wilson) Urb. species accepted

Karwinskia mollis Schltdl. species accepted

Karwinskia microphylla Suess. species synonym

Karwinskia latifolia Standl. species accepted

Karwinskia johnstonii R.Fern. species accepted

Reynosia orbiculata (Britton & P.Wilson) Urb. species synonym

Karwinskia glandulosa Zucc. species synonym

Karwinskia colombiana Dugand & M.C.Johnst. species accepted

Karwinskia caloneura Urb. species accepted

Karwinskia biniflora Schltdl. species synonym

Karwinskia bicolor (Britton & P.Wilson) Urb. species accepted

Karwinskia angustata Borhidi & O.Muñiz species accepted

Karwinskia affinis Schltdl. species synonym

Decorima umbellata (Cav.) Raf. species synonym

Rhamnus biniflora (Moc. & Sessé) species synonym

Rhamnus maculata Sessé & Moc. species synonym

Rhamnus umbellata Cav. species synonym

Rhamnidium rocanum Britton & P.Wilson species synonym

Karwinskia mollis Standl. species doubtful