Endemic vascular plant genera of the California region

There are on the order of 67 genera endemic to California and the California Floristic Province (‘California region’).  The list below gives my most recent compilation. About half of these are monotypic.  The total number of treated taxa is 155, or about 6% of the endemic flora of the region.

Agavaceae

           Chlorogalum Kunth (8)

Apiaceae

           Oreonana Jeps. (3)

Asteraceae

Achyrachaena Schauer    (1)

Adenothamnus D. D. Keck (1)

Baeriopsis J.T. Howell (1)

Benitoa D. D. Keck (1)

Blepharizonia (A. Gray) Greene (2)

Calycadenia DC. (10)

Constancea B. G. Baldwin (1)

Corethrogyne DC (1)

Eastwoodia Brandegee (1)

Holocarpha Greene (4)

Holozoinia Greene (1)

Jensia B. G. Baldwin (2)

Kyhosia B. G. Baldwin (1)

Hesperevax (A. Gray) A. Gray (3)

Monolopia DC. (5)

Munzothamnus P. H. Raven (1)

Orochaenactis Coville (1)

            Pentachaeta Nutt. (8)

            Phalacroseris A. Gray (2)

            Pseudobahia (A. Gray) Rydb. (3)

            Tracyina S. F. Blake (1)

            Venegasia DC. (1)

Brassicaceae

             Euclisia (Nutt. ex Torr. & A. Gray) Greene (9)*

             Heterodraba Greene (1)

 ‘Kruckeberia’ (10)

             Sibaropsis S. Boyd & T.S. Ross (1)

             Twisselmannia Al-Shebaz (1)        

Cactaceae

               Bergerocactus Britton & Rose (1)

Chenopodiaceae

               Extriplex E. H. Zacharias (2)

Crassulaceae

               Sedella Britton & Rose (30

Cyperaceae

               Calliscripus C.N.Gilmour , J.R.Starr & Naczi (2)

Ericaceae

               Ornithostaphylos Small (2)

Fabaceae

               Pickeringia Nutt. (2)

Hydrophyllaceae

               Draperia Torr. (1)

  Lemmonia A. Gray (1)

Hydrangeaceae

               Carpenteria Torr. (1)

Lamiaceae

               Acanthomintha (A. Gray) A. Gray (5)

  Pogogyne Benth. (8)

Lauraceae

               Umbellularia (Nees) Nutt. (2)

Monotropaceae

               Sacrcodes Torr. (1)

Oleaceae

               Hesperelaea A. Gray (1)

Onagraceae

               Heterogaura Rothr. (1)

Papaveraceae

            Dendromecon Kell. (2)

Ehrendorferia Fukuhara & Lidén (2)

Hesperomecon Greene (1)

Romneya Harv. (2)

Stylomecon G. Taylor (1)

Poaceae

               Neostapfia Burtt-Davy (1)

Polygonaceae

           Acanthoscyphus Small (4)

           Aristocapsa Reveal & Hardham (1)

           Dedeckara Reveal & J. T. Howell (1)

           Gilmania Cov. (1)

Goodmania Reveal & Ertter (1)

           Hollisteria S. Watson (1)

Mucronea Benth. (2)

Sidotheca Reveal. (3)

Systenotheca Reveal & Hardham (1)

Rosaceae

               Chamaebatia Benth. (2)

               Lyanothamnus A. Gray (2)

Saxifragaceae

               Bensoniella C. V. Morton (1)

               Jepsonia Small (3)

Taxodiaceae

               Sequoia Endl. (1)

               Sequoiadendron J. Buchholz (1)

Tecophilaeaceae

               Odontostomum Torr. (1)

Themidaceae

               Bloomeria Kellogg (5)

*genera as indicated in Cacho et al. 2014 (Mol. Phylo. And Evolution 72:71-81), but not yet described