List of Phacelia species. This plant genus is in the family Boraginaceae, basal in one of the 2 main euasterid lineages, as per Angiosperm Phylogeny Group. It is usually placed in the Hydrophylloideae subfamily. This is a list of binomial names, including both accepted species and synonyms. Source: Index Kewensis (at IPNI) and ITIS. A Phacelia acanthominthoides Elmer Phacelia acaulis Brand Phacelia adenophora Howell Phacelia adspersa Brand Phacelia affinis A.Gray Phacelia alba Rydb. Phacelia aldea R.Br. ex Sweet Phacelia alpina Rydb. Phacelia altotonga B.L.Turner Phacelia alvordensis M.E.Jones Phacelia amabilis Constance Phacelia ambigua M.E.Jones Phacelia anelsonii Macbride Phacelia arenicola Brandegee Phacelia argentea A.Nelson & Macbride Phacelia argillacea Atwood Phacelia arizonica A.Gray Phacelia artemisioides Griseb. Phacelia arthuri Greene Phacelia austromontana Howell B Phacelia bakeri Macbride Phacelia barnebyana Howell Phacelia beatleyae Reveal & Constance Phacelia bicknellii Small Phacelia bicolor Torr. ex S.Wats. Phacelia biennis A.Nelson Phacelia bipinnatifida Michx. Phacelia bolanderi - Bolander's phacelia, Bolander's scorpionweed, Blue-flowered grape-leaf, caterpillar flower Phacelia boliviana Brand Phacelia bombycina Wooton & Standl. Phacelia boykinii Small Phacelia brachyantha Benth. Phacelia brachyloba A.Gray Phacelia brachystemon Kunze ex Brand Phacelia brannani Kellogg Phacelia brevistylis Buckl. Phacelia breweri A.Gray - Brewer's phacelia Phacelia burkei Rydb. C Phacelia caerulea Greene Phacelia californica Cham. Phacelia calthifolia - Caltha-leaved phacelia Phacelia campanularia - California bluebell Phacelia campestris A.Nelson Phacelia canescens Nutt. Phacelia capitata Kruckeb. Phacelia carmenensis B.L.Turner Phacelia cedrosensis J.N.Rose Phacelia cephalotes A.Gray Phacelia cicutaria - caterpillar phacelia, caterpillar scorpionweed; includes P. hispida A.Gray Phacelia ciliata Benth. Phacelia ciliosa Rydb. Phacelia cinerea Eastwood ex Macbride Phacelia circinata Jacq.f. Phacelia circinatiformis A.Gray Phacelia clinopodioides Bert. Phacelia conferta G.Don Phacelia congdonii Greene Phacelia congesta Hook. Phacelia constancei Atwood Phacelia cookei Constance & Heckard Phacelia cooperae A.Gray Phacelia cordifolia S.Wats. ex Brand Phacelia corrugata A.Nelson Phacelia corymbosa Jepson Phacelia coulteri Greenm. Phacelia covillei S.Watson Phacelia crassifolia Parry or Torr. ex S.Wats. Phacelia crenulata - notch-leaved phacelia Phacelia cronquistiana S.L.Welsh Phacelia cryptantha Greene Phacelia cumingii A.Gray Phacelia curvipes Torr. ex S.Wats. D Phacelia dalesiana Howell Phacelia davidsonii A.Gray Phacelia demissa A.Gray Phacelia denticulata Osterh. Phacelia dissecta Small Phacelia distans Benth. - blue phacelia Phacelia divaricata (Benth.) A.Gray Phacelia dociana Jepson & Hoover Phacelia douglasii Torr. Phacelia dubia Trel. ex Trel., Branner & Coville E Phacelia egena (Greene ex Brand) Greene ex J.T. Howell Phacelia eisenii Brandegee Phacelia endiplus Steud. Phacelia eremica Jepson Phacelia exilis (Gray) G.J.Lee Phacelia eximia Eastw. F Phacelia fallax Fernald Phacelia filiae N.D.Atwood, F.J.Sm. & T.A.Knight