Every accepted species in the genus is listed. A name links to its page when we hold at least three commercially licensed photographs of it. Where we do not, the row shows how many we actually found, which is usually none.
| Species | Authority | Usable photographs | Page |
|---|---|---|---|
| Phacelia distans | Benth. | 1,541 | documented |
| Phacelia tanacetifolia | Benth. | 1,048 | documented |
| Phacelia crenulata | Torr. ex S.Watson | 744 | documented |
| Phacelia hastata | Douglas ex Lehm. | 571 | documented |
| Phacelia ramosissima | Douglas ex Lehm. | 498 | documented |
| Phacelia cicutaria | Greene | 473 | documented |
| Phacelia californica | Cham. | 415 | documented |
| Phacelia minor | (Harv.) Thell. | 410 | documented |
| Phacelia parryi | Torr. | 351 | documented |
| Phacelia sericea | (Graham) A.Gray | 348 | documented |
| Phacelia congesta | Hook. | 345 | documented |
| Phacelia linearis | (Pursh) Holz. | 334 | documented |
| Phacelia fremontii | Torr. | 303 | documented |
| Phacelia campanularia | A.Gray | 300 | documented |
| Phacelia imbricata | Greene | 285 | documented |
| Phacelia bipinnatifida | Michx. | 267 | documented |
| Phacelia purshii | Buckley | 241 | documented |
| Phacelia malvifolia | Cham. & Schltdl. | 216 | documented |
| Phacelia grandiflora | (Benth.) A.Gray | 214 | documented |
| Phacelia integrifolia | Torr. | 166 | documented |
| Phacelia ciliata | Benth. | 154 | documented |
| Phacelia heterophylla | Pursh | 146 | documented |
| Phacelia brachyloba | (Benth.) A.Gray | 136 | documented |
| Phacelia hubbyi | (J.F.Macbr.) Garrison | 134 | documented |
| Phacelia bicolor | Torr. ex S.Watson | 124 | documented |
| Phacelia coerulea | Greene | 119 | documented |
| Phacelia vallis-mortae | J.W.Voss | 117 | documented |
| Phacelia dubia | (L.) Trel. | 116 | documented |
| Phacelia nemoralis | Greene | 114 | documented |
| Phacelia viscida | (Benth. ex Lindl.) Torr. | 113 | documented |
| Phacelia longipes | Torr. ex A.Gray | 107 | documented |
| Phacelia douglasii | (Benth.) Torr. | 103 | documented |
| Phacelia covillei | S.Watson | 100 | documented |
| Phacelia divaricata | (Benth.) A.Gray | 91 | documented |
| Phacelia calthifolia | Brand | 84 | documented |
| Phacelia popei | Torr. & A.Gray | 74 | documented |
| Phacelia cryptantha | Greene | 66 | documented |
| Phacelia rotundifolia | Torr. ex S.Watson | 66 | documented |
| Phacelia gymnoclada | Torr. ex S.Watson | 65 | documented |
| Phacelia pedicellata | A.Gray | 65 | documented |
| Phacelia secunda | J.F.Gmel. | 63 | documented |
| Phacelia curvipes | Torr. ex S.Watson | 61 | documented |
| Phacelia hirsuta | Nutt. | 57 | documented |
| Phacelia fimbriata | Michx. | 55 | documented |
| Phacelia davidsonii | A.Gray | 49 | documented |
| Phacelia platycarpa | (Cav.) Spreng. | 49 | documented |
| Phacelia perityloides | Coville | 46 | documented |
| Phacelia austromontana | J.T.Howell | 44 | documented |
| Phacelia bolanderi | A.Gray | 43 | documented |
| Phacelia breweri | A.Gray | 43 | documented |
| Phacelia glandulifera | Piper | 42 | documented |
| Phacelia rupestris | Greene | 42 | documented |
| Phacelia franklinii | (R.Br.) A.Gray | 41 | documented |
| Phacelia grisea | A.Gray | 41 | documented |
| Phacelia hydrophylloides | Torr. ex A.Gray | 41 | documented |
| Phacelia nashiana | Jeps. | 41 | documented |
| Phacelia alba | Rydb. | 38 | documented |
| Phacelia humilis | Torr. & A.Gray | 34 | documented |
| Phacelia suaveolens | Greene | 33 | documented |
| Phacelia monoensis | Halse | 32 | documented |
| Phacelia lyallii | (A.Gray) Rydb. | 31 | documented |
| Phacelia patuliflora | (Engelm. & A.Gray) A.Gray | 31 | documented |
| Phacelia brachyantha | Benth. | 30 | documented |
| Phacelia floribunda | Greene | 29 | documented |
| Phacelia ixodes | Kellogg | 29 | documented |
| Phacelia peirsoniana | J.T.Howell | 29 | documented |
| Phacelia phacelioides | (Benth.) Brand | 28 | documented |
| Phacelia sivinskii | N.D.Atwood, P.J.Knight & Lowrey | 28 | documented |
| Phacelia stellaris | Brand | 28 | documented |
| Phacelia bombycina | Wooton & Standl. | 26 | documented |
| Phacelia exilis | (A.Gray) G.J.Lee | 26 | documented |
| Phacelia ivesiana | Torr. | 25 | documented |
| Phacelia palmeri | Torr. | 25 | documented |
| Phacelia vallicola | Congdon ex Brand | 25 | documented |
| Phacelia affinis | A.Gray | 24 | documented |
| Phacelia pringlei | A.Gray | 24 | documented |
| Phacelia maculata | Wood | 21 | documented |
| Phacelia neglecta | M.E.Jones | 21 | documented |
| Phacelia barnebyana | J.T.Howell | 20 | documented |
| Phacelia purpusii | Brandegee | 20 | documented |
| Phacelia rattanii | A.Gray | 20 | documented |
| Phacelia eisenii | Brandegee | 19 | documented |
| Phacelia lutea | (Hook. & Arn.) J.T.Howell | 19 | documented |
| Phacelia marcescens | Eastw. ex J.F.Macbr. | 19 | documented |
| Phacelia saxicola | A.Gray | 19 | documented |
| Phacelia arizonica | A.Gray | 18 | documented |
| Phacelia glabra | Nutt. | 18 | documented |
| Phacelia leptosepala | Rydb. | 18 | documented |
| Phacelia inyoensis | (J.F.Macbr.) J.T.Howell | 17 | documented |
| Phacelia lenta | Piper | 17 | documented |
| Phacelia pachyphylla | A.Gray | 17 | documented |
| Phacelia incana | Brand | 16 | documented |
| Phacelia greenei | J.T.Howell | 15 | documented |
| Phacelia quickii | J.T.Howell | 15 | documented |
| Phacelia novenmillensis | Munz | 14 | documented |
| Phacelia procera | A.Gray | 14 | documented |
| Phacelia corymbosa | Jeps. | 13 | documented |
| Phacelia ranunculacea | (Nutt.) Constance | 13 | documented |
| Phacelia corrugata | A.Nelson | 12 | documented |
| Phacelia stebbinsii | Constance & Heckard | 12 | documented |
| Phacelia gilioides | Brand | 11 | documented |
| Phacelia egena | (Brand) Greene ex J.T.Howell | 10 | documented |
| Phacelia inundata | J.T.Howell | 10 | documented |
| Phacelia lyonii | A.Gray | 10 | documented |
| Phacelia mustelina | Coville | 10 | documented |
| Phacelia infundibuliformis | Torr. | 9 | documented |
| Phacelia mollis | J.F.Macbr. | 9 | documented |
| Phacelia anelsonii | J.F.Macbr. | 8 | documented |
| Phacelia cumingii | (Benth.) A.Gray | 8 | documented |
| Phacelia pinnatifida | Griseb. ex Wedd. | 8 | documented |
| Phacelia pulchella | A.Gray | 8 | documented |
| Phacelia sabulonum | (J.T.Howell) N.D.Atwood | 8 | documented |
| Phacelia tetramera | J.T.Howell | 8 | documented |
| Phacelia cookei | Constance & Heckard | 7 | documented |
| Phacelia filiformis | Brand | 7 | documented |
| Phacelia leonis | J.T.Howell | 7 | documented |
| Phacelia pinkavae | N.D.Atwood | 7 | documented |
| Phacelia serrata | J.W.Voss | 7 | documented |
| Phacelia lemmonii | A.Gray | 6 | documented |
| Phacelia scariosa | Brandegee | 6 | documented |
| Phacelia argentea | A.Nelson & J.F.Macbr. | 5 | documented |
| Phacelia glandulosa | Nutt. | 5 | documented |
| Phacelia mutabilis | Greene | 5 | documented |
| Phacelia platyloba | A.Gray | 5 | documented |
| Phacelia congdonii | Greene | 4 | documented |
| Phacelia nana | Wedd. | 4 | documented |
| Phacelia setigera | Phil. | 4 | documented |
| Phacelia artemisioides | Griseb. | 3 | documented |
| Phacelia bakeri | (Brand) J.F.Macbr. | 3 | documented |
| Phacelia geraniifolia | Brand | 3 | documented |
| Phacelia orogenes | Brand | 3 | documented |
| Phacelia sanzinii | Hicken | 3 | documented |
| Phacelia racemosa | (Kellogg) A.Heller | 8 | below the evidence gate |
| Phacelia verna | Howell | 4 | below the evidence gate |
| Phacelia adenophora | J.T.Howell | 2 | below the evidence gate |
| Phacelia gentryi | Constance | 2 | below the evidence gate |
| Phacelia howelliana | N.D.Atwood | 2 | below the evidence gate |
| Phacelia mohavensis | A.Gray | 2 | below the evidence gate |
| Phacelia peckii | J.T.Howell | 2 | below the evidence gate |
| Phacelia pauciflora | S.Watson | 1 | below the evidence gate |
| Phacelia strictiflora | (Engelm. & A.Gray) A.Gray | 1 | below the evidence gate |
| Phacelia altotonga | B.L.Turner | 0 | below the evidence gate |
| Phacelia amabilis | Constance | 0 | below the evidence gate |
| Phacelia argillacea | N.D.Atwood | 0 | below the evidence gate |
| Phacelia argylensis | N.D.Atwood & S.L.Welsh | 0 | below the evidence gate |
| Phacelia austrotexana | (J.A.Moyer) B.L.Turner | 0 | below the evidence gate |
| Phacelia beatleyae | Reveal & Constance | 0 | below the evidence gate |
| Phacelia buell-vivariensis | N.D.Atwood | 0 | below the evidence gate |
| Phacelia capitata | Kruckeb. | 0 | below the evidence gate |
| Phacelia carmenensis | B.L.Turner | 0 | below the evidence gate |
| Phacelia cephalotes | A.Gray | 0 | below the evidence gate |
| Phacelia cliffordii | N.D.Atwood & S.L.Welsh | 0 | below the evidence gate |
| Phacelia cloudcroftensis | N.D.Atwood | 0 | below the evidence gate |
| Phacelia constancei | N.D.Atwood | 0 | below the evidence gate |
| Phacelia cottamii | N.D.Atwood | 0 | below the evidence gate |
| Phacelia coulteri | Greenm. | 0 | below the evidence gate |
| Phacelia cronquistiana | S.L.Welsh | 0 | below the evidence gate |
| Phacelia demissa | A.Gray | 0 | below the evidence gate |
| Phacelia denticulata | Osterh. | 0 | below the evidence gate |
| Phacelia deserta | A.Nelson | 0 | below the evidence gate |
| Phacelia formosula | Osterh. | 0 | below the evidence gate |
| Phacelia furnissii | N.D.Atwood | 0 | below the evidence gate |
| Phacelia gina-glenneae | N.D.Atwood & S.L.Welsh | 0 | below the evidence gate |
| Phacelia glaberrima | (Torr. ex S.Watson) J.T.Howell | 0 | below the evidence gate |
| Phacelia glechomifolia | A.Gray | 0 | below the evidence gate |
| Phacelia gypsogenia | I.M.Johnst. | 0 | below the evidence gate |
| Phacelia higginsii | N.D.Atwood | 0 | below the evidence gate |
| Phacelia hintoniorum | B.L.Turner | 0 | below the evidence gate |
| Phacelia hirtuosa | A.Gray | 0 | below the evidence gate |
| Phacelia hughesii | N.D.Atwood | 0 | below the evidence gate |
| Phacelia idahoensis | L.F.Hend. | 0 | below the evidence gate |
| Phacelia inconspicua | Greene | 0 | below the evidence gate |
| Phacelia indecora | J.T.Howell | 0 | below the evidence gate |
| Phacelia insularis | Munz | 0 | below the evidence gate |
| Phacelia laxa | Small | 0 | below the evidence gate |
| Phacelia laxiflora | J.T.Howell | 0 | below the evidence gate |
| Phacelia leibergii | Brand | 0 | below the evidence gate |
| Phacelia mammillarensis | N.D.Atwood | 0 | below the evidence gate |
| Phacelia marshal-johnstonii | N.D.Atwood & Pinkava | 0 | below the evidence gate |
| Phacelia minutiflora | J.W.Voss | 0 | below the evidence gate |
| Phacelia minutissima | L.F.Hend. | 0 | below the evidence gate |
| Phacelia neffii | B.L.Turner | 0 | below the evidence gate |
| Phacelia neomexicana | Thurb. ex Torr. | 0 | below the evidence gate |
| Phacelia orbicularis | Rydb. | 0 | below the evidence gate |
| Phacelia pallida | I.M.Johnst. | 0 | below the evidence gate |
| Phacelia parishii | A.Gray | 0 | below the evidence gate |
| Phacelia potosina | B.L.Turner | 0 | below the evidence gate |
| Phacelia pulcherrima | Constance | 0 | below the evidence gate |
| Phacelia rafaelensis | N.D.Atwood | 0 | below the evidence gate |
| Phacelia robusta | (J.F.Macbr.) I.M.Johnst. | 0 | below the evidence gate |
| Phacelia salina | (A.Nelson) J.T.Howell | 0 | below the evidence gate |
| Phacelia scopulina | (A.Nelson) J.T.Howell | 0 | below the evidence gate |
| Phacelia sinuata | Phil. | 0 | below the evidence gate |
| Phacelia sonoitensis | S.P.McLaughlin | 0 | below the evidence gate |
| Phacelia splendens | Eastw. | 0 | below the evidence gate |
| Phacelia submutica | J.T.Howell | 0 | below the evidence gate |
| Phacelia suffrutescens | Parry | 0 | below the evidence gate |
| Phacelia thermalis | Greene | 0 | below the evidence gate |
| Phacelia utahensis | J.W.Voss | 0 | below the evidence gate |
| Phacelia vossii | N.D.Atwood | 0 | below the evidence gate |
| Phacelia welshii | N.D.Atwood | 0 | below the evidence gate |
| Phacelia zaragozana | B.L.Turner | 0 | below the evidence gate |
This site is commercial, so it can only publish photographs licensed for commercial use. Roughly three quarters of the photographs on iNaturalist are CC BY-NC, which excludes them. A species needs at least three usable photographs before we will build it a page, because a page with one picture and no traits tells you nothing you could not get from a search result, and generating hundreds of thousands of those is precisely the practice that got the previous version of this site deleted.
So the species above without a link are not errors and they are not omissions. They are real, accepted plants that we cannot yet document to the standard we hold ourselves to, and the count in the photographs column is exactly how far short we fall.