| Actinocarya Benth. | | a | | Actinocarya Benth. | | Boraginaceae |
| Adelinia J. I. Cohen | | a | | Adelinia J. I. Cohen | | Boraginaceae |
| Adelocaryum Brand | | a | | Adelocaryum Brand | | Boraginaceae |
| Aegonychon Gray | | a | | Aegonychon Gray | | Boraginaceae |
| Afrotysonia Rauschert | | a | | Afrotysonia Rauschert | | Boraginaceae |
| Ailuroglossum Sutorý | | a | | Ailuroglossum Sutorý | | Boraginaceae |
| Aipyanthus Steven | Huynhia Greuter | | | Aipyanthus Steven | Huynhia Greuter | Boraginaceae |
| Alkanna Tausch | | a | | Alkanna Tausch | | Boraginaceae |
| Allocarya Greene | Plagiobothrys Fisch. & C. A. Mey. | | | Allocarya Greene | Plagiobothrys Fisch. & C. A. Mey. | Boraginaceae |
| Allocaryastrum Brand | Plagiobothrys Fisch. & C. A. Mey. | | | Allocaryastrum Brand | Plagiobothrys Fisch. & C. A. Mey. | Boraginaceae |
| Amblynotopsis J. F. Macbr. | Antiphytum DC. ex Meisn. | | | Amblynotopsis J. F. Macbr. | Antiphytum DC. ex Meisn. | Boraginaceae |
| Amblynotus (A. DC.) I. M. Johnst. | | a | | Amblynotus (A. DC.) I. M. Johnst. | | Boraginaceae |
| Amphibologyne Brand | | a | | Amphibologyne Brand | | Boraginaceae |
| Amsinckia Lehm. | | a | | Amsinckia Lehm. | | Boraginaceae |
| Amsinckiopsis (I. M. Johnst.) Guilliams et al. | | a | | Amsinckiopsis (I. M. Johnst.) Guilliams et al. | | Boraginaceae |
| Anchusa L. | | a | | Anchusa L. | | Boraginaceae |
| Anchusella Bigazzi et al. | | a | | Anchusella Bigazzi et al. | | Boraginaceae |
| Ancistrocarya Maxim. | | a | | Ancistrocarya Maxim. | | Boraginaceae |
| Andersonglossum J. I. Cohen | | a | | Andersonglossum J. I. Cohen | | Boraginaceae |
| Anisanthera Raf. | Caccinia Savi | | | Anisanthera Raf. | Caccinia Savi | Boraginaceae |
| Anoplocaryum Ledeb. | | a | | Anoplocaryum Ledeb. | | Boraginaceae |
| Antiotrema Hand.-Mazz. | | a | | Antiotrema Hand.-Mazz. | | Boraginaceae |
| Antiphytum DC. ex Meisn. | | a | | Antiphytum DC. ex Meisn. | | Boraginaceae |
| Arnebia Forssk. | | a | | Arnebia Forssk. | | Boraginaceae |
| Arnebiola Chiov. | Arnebia Forssk. | | | Arnebiola Chiov. | Arnebia Forssk. | Boraginaceae |
| Asperugo L. | | a | | Asperugo L. | | Boraginaceae |
| Austrocynoglossum Popov ex R. R. Mill | | a | | Austrocynoglossum Popov ex R. R. Mill | | Boraginaceae |
| Baphorhiza Link | Alkanna Tausch | | | Baphorhiza Link | Alkanna Tausch | Boraginaceae |
| Batschia J. F. Gmel. | Lithospermum L. | | | Batschia J. F. Gmel. | Lithospermum L. | Boraginaceae |
| Beurreria Jacq., orth. var. | | | | Beurreria Jacq., orth. var. | | Boraginaceae |
| Bilegnum Brand | Cynoglossum L. | | | Bilegnum Brand | Cynoglossum L. | Boraginaceae |
| Boraginella Kuntze | Trichodesma R. Br. | | | Boraginella Kuntze | Trichodesma R. Br. | Boraginaceae |
| Borago L. | | a | | Borago L. | | Boraginaceae |
| Borrachinea Lavy | | | | Borrachinea Lavy | | Boraginaceae |
| Borraginoides Boehm. | Trichodesma R. Br. | | | Borraginoides Boehm. | Trichodesma R. Br. | Boraginaceae |
| Bothriospermum Bunge | | a | | Bothriospermum Bunge | | Boraginaceae |
| Brachybotrys Maxim. ex Oliv. | | a | | Brachybotrys Maxim. ex Oliv. | | Boraginaceae |
| Brandella R. R. Mill | | a | | Brandella R. R. Mill | | Boraginaceae |
| Brunnera Steven | | a | | Brunnera Steven | | Boraginaceae |
| Buglossoides Moench | | a | | Buglossoides Moench | | Boraginaceae |
| Buglossum Mill. | Anchusa L. | | | Buglossum Mill. | Anchusa L. | Boraginaceae |
| Caccinia Savi | | a | | Caccinia Savi | | Boraginaceae |
| Camptocarpus K. Koch | Alkanna Tausch | | | Camptocarpus K. Koch | Alkanna Tausch | Boraginaceae |
| Campylocaryum DC. ex Meisn. | Alkanna Tausch | | | Campylocaryum DC. ex Meisn. | Alkanna Tausch | Boraginaceae |
| Caryolopha Fisch. & Trautv. | Pentaglottis Tausch | | | Caryolopha Fisch. & Trautv. | Pentaglottis Tausch | Boraginaceae |
| Cerinthe L. | | a | | Cerinthe L. | | Boraginaceae |
| Cervia Rodr. ex Lag. | Rochelia Rchb. | | | Cervia Rodr. ex Lag. | Rochelia Rchb. | Boraginaceae |
| Chamissoniophila Brand | Antiphytum DC. ex Meisn. | | | Chamissoniophila Brand | Antiphytum DC. ex Meisn. | Boraginaceae |
| Chionocharis I. M. Johnst. | | a | | Chionocharis I. M. Johnst. | | Boraginaceae |
| Choriantha Riedl | | a | | Choriantha Riedl | | Boraginaceae |
| Colsmannia Lehm. | Onosma L. | | | Colsmannia Lehm. | Onosma L. | Boraginaceae |
| Craniospermum Lehm. | | a | | Craniospermum Lehm. | | Boraginaceae |
| Crucicaryum Brand | Cynoglossum L. | | | Crucicaryum Brand | Cynoglossum L. | Boraginaceae |
| Cryptantha Lehm. ex G. Don | | a | | Cryptantha Lehm. ex G. Don | | Boraginaceae |
| Cynoglossopsis Brand | | a | | Cynoglossopsis Brand | | Boraginaceae |
| Cynoglossum L. | | a | | Cynoglossum L. | | Boraginaceae |
| Cynoglottis (Guşul.) Vural & Kit Tan | | a | | Cynoglottis (Guşul.) Vural & Kit Tan | | Boraginaceae |
| Cyphomattia Boiss. | Cynoglossum L. | | | Cyphomattia Boiss. | Cynoglossum L. | Boraginaceae |
| Cystistemon Post & Kuntze, orth. var. | Cystostemon Balf. f. | | | Cystistemon Post & Kuntze, orth. var. | Cystostemon Balf. f. | Boraginaceae |
| Cystostemon Balf. f. | | a | | Cystostemon Balf. f. | | Boraginaceae |
| Dasynotus I. M. Johnst. | | a | | Dasynotus I. M. Johnst. | | Boraginaceae |
| Decalepidanthus Riedl | | a | | Decalepidanthus Riedl | | Boraginaceae |
| Echidiocarya A. Gray | Plagiobothrys Fisch. & C. A. Mey. | | | Echidiocarya A. Gray | Plagiobothrys Fisch. & C. A. Mey. | Boraginaceae |
| Echinoglochin (A. Gray) Brand | Plagiobothrys Fisch. & C. A. Mey. | | | Echinoglochin (A. Gray) Brand | Plagiobothrys Fisch. & C. A. Mey. | Boraginaceae |
| Echinospermum Sw. ex Lehm. | Lappula Moench | | | Echinospermum Sw. ex Lehm. | Lappula Moench | Boraginaceae |
| Echiochilon Desf. | | a | | Echiochilon Desf. | | Boraginaceae |
| Echiochilopsis Caball. | Echiochilon Desf. | | | Echiochilopsis Caball. | Echiochilon Desf. | Boraginaceae |
| Echioides Ortega | Huynhia Greuter | | | Echioides Ortega | Huynhia Greuter | Boraginaceae |
| Echiopsis Rchb. | Lobostemon Lehm. | | | Echiopsis Rchb. | Lobostemon Lehm. | Boraginaceae |
| Echiostachys Levyns | | a | | Echiostachys Levyns | | Boraginaceae |
| Echium L. | | a | | Echium L. | | Boraginaceae |
| Elizaldia Willk. | Nonea Medik. | | | Elizaldia Willk. | Nonea Medik. | Boraginaceae |
| Embadium J. M. Black | | a | | Embadium J. M. Black | | Boraginaceae |
| Endogonia (Turcz.) Lindl. | Trigonotis Steven | | | Endogonia (Turcz.) Lindl. | Trigonotis Steven | Boraginaceae |
| Eremocarya Greene | | a | | Eremocarya Greene | | Boraginaceae |
| Eritrichium Schrad. ex Gaudin | | a | | Eritrichium Schrad. ex Gaudin | | Boraginaceae |
| Friedrichsthalia Fenzl | Trichodesma R. Br. | | | Friedrichsthalia Fenzl | Trichodesma R. Br. | Boraginaceae |
| Gastrocotyle Bunge | | a | | Gastrocotyle Bunge | | Boraginaceae |
| Glandora D. C. Thomas et al. | | a | | Glandora D. C. Thomas et al. | | Boraginaceae |
| Glochidocaryum W. T. Wang | Metaeritrichium W. T. Wang | | | Glochidocaryum W. T. Wang | Metaeritrichium W. T. Wang | Boraginaceae |
| Glyptocaryopsis Brand | Plagiobothrys Fisch. & C. A. Mey. | | | Glyptocaryopsis Brand | Plagiobothrys Fisch. & C. A. Mey. | Boraginaceae |
| Greeneocharis Gürke & Harms | Cryptantha Lehm. ex G. Don | | | Greeneocharis Gürke & Harms | Cryptantha Lehm. ex G. Don | Boraginaceae |
| Gymnoleima Decne. | Moltkia Lehm. | | | Gymnoleima Decne. | Moltkia Lehm. | Boraginaceae |
| Gymnomyosotis (A. DC.) O. D. Nikif. | Myosotis L. | | | Gymnomyosotis (A. DC.) O. D. Nikif. | Myosotis L. | Boraginaceae |
| Gyrocaryum Valdés | | a | | Gyrocaryum Valdés | | Boraginaceae |
| Hackelia Opiz | | a | | Hackelia Opiz | | Boraginaceae |
| Halacsya Dörfl. | | a | | Halacsya Dörfl. | | Boraginaceae |
| Harpagonella A. Gray | Pectocarya DC. | | | Harpagonella A. Gray | Pectocarya DC. | Boraginaceae |
| Havilandia Stapf | Trigonotis Steven | | | Havilandia Stapf | Trigonotis Steven | Boraginaceae |
| Heliocarya Bunge | | a | | Heliocarya Bunge | | Boraginaceae |
| Henryettana Brand | Antiotrema Hand.-Mazz. | | | Henryettana Brand | Antiotrema Hand.-Mazz. | Boraginaceae |
| Heterocaryum A. DC. | | a | | Heterocaryum A. DC. | | Boraginaceae |
| Hormuzakia Guşul. | Anchusa L. | | | Hormuzakia Guşul. | Anchusa L. | Boraginaceae |
| Huynhia Greuter | | a | | Huynhia Greuter | | Boraginaceae |
| Iberodes M. Serrano et al. | | a | | Iberodes M. Serrano et al. | | Boraginaceae |
| Isorium Raf. | Lobostemon Lehm. | | | Isorium Raf. | Lobostemon Lehm. | Boraginaceae |
| Ivanjohnstonia Kazmi | | a | | Ivanjohnstonia Kazmi | | Boraginaceae |
| Johnstonella Brand | Cryptantha Lehm. ex G. Don | | | Johnstonella Brand | Cryptantha Lehm. ex G. Don | Boraginaceae |
| Krynitzkia Fisch. & C. A. Mey. | Cryptantha Lehm. ex G. Don | | | Krynitzkia Fisch. & C. A. Mey. | Cryptantha Lehm. ex G. Don | Boraginaceae |
| Kuschakewiczia Regel & Smirn. | Cynoglossum L. | | | Kuschakewiczia Regel & Smirn. | Cynoglossum L. | Boraginaceae |
| Lacaitaea Brand | | a | | Lacaitaea Brand | | Boraginaceae |
| Lappula Moench | | a | | Lappula Moench | | Boraginaceae |
| Lasiarrhenum I. M. Johnst. | Lithospermum L. | | | Lasiarrhenum I. M. Johnst. | Lithospermum L. | Boraginaceae |
| Lasiocaryum I. M. Johnst. | | a | | Lasiocaryum I. M. Johnst. | | Boraginaceae |
| Lepechiniella Popov | | a | | Lepechiniella Popov | | Boraginaceae |
| Leptanthe Klotzsch | Arnebia Forssk. | | | Leptanthe Klotzsch | Arnebia Forssk. | Boraginaceae |
| Leurocline S. Moore | Echiochilon Desf. | | | Leurocline S. Moore | Echiochilon Desf. | Boraginaceae |
| Lindelofia Lehm. | | a | | Lindelofia Lehm. | | Boraginaceae |
| Lithodora Griseb. | | a | | Lithodora Griseb. | | Boraginaceae |
| Lithospermum L. | | a | | Lithospermum L. | | Boraginaceae |
| Lobostema Spreng. | Lobostemon Lehm. | | | Lobostema Spreng. | Lobostemon Lehm. | Boraginaceae |
| Lobostemon Lehm. | | a | | Lobostemon Lehm. | | Boraginaceae |
| Lycopsis L. | Anchusa L. | | | Lycopsis L. | Anchusa L. | Boraginaceae |
| Maccoya F. Muell. | Plagiobothrys Fisch. & C. A. Mey. | | | Maccoya F. Muell. | Plagiobothrys Fisch. & C. A. Mey. | Boraginaceae |
| Macromeria D. Don | Lithospermum L. | | | Macromeria D. Don | Lithospermum L. | Boraginaceae |
| Macrotomia DC. | Arnebia Forssk. | | | Macrotomia DC. | Arnebia Forssk. | Boraginaceae |
| Maharanga A. DC. | | a | | Maharanga A. DC. | | Boraginaceae |
| Mairetis I. M. Johnst. | | a | | Mairetis I. M. Johnst. | | Boraginaceae |
| Mapuchea M. Serrano et al. | Selkirkia Hemsl. | | | Mapuchea M. Serrano et al. | Selkirkia Hemsl. | Boraginaceae |
| Massartina Maire | Nonea Medik. | | | Massartina Maire | Nonea Medik. | Boraginaceae |
| Mattia Schult. | Cynoglossum L. | | | Mattia Schult. | Cynoglossum L. | Boraginaceae |
| Mattiastrum (Boiss.) Brand | | a | | Mattiastrum (Boiss.) Brand | | Boraginaceae |
| Megacaryon Boiss. | Echium L. | | | Megacaryon Boiss. | Echium L. | Boraginaceae |
| Megastoma (Benth.) Bonnet & Barratte | Ogastemma Brummitt | | | Megastoma (Benth.) Bonnet & Barratte | Ogastemma Brummitt | Boraginaceae |
| Melanortocarya Selvi et al. | | a | | Melanortocarya Selvi et al. | | Boraginaceae |
| Memoremea A. Otero et al. | | a | | Memoremea A. Otero et al. | | Boraginaceae |
| Mertensia Roth | | a | | Mertensia Roth | | Boraginaceae |
| Metaeritrichium W. T. Wang | | a | | Metaeritrichium W. T. Wang | | Boraginaceae |
| Microcaryum I. M. Johnst. | | a | | Microcaryum I. M. Johnst. | | Boraginaceae |
| Microparacaryum (Popov ex Riedl) Hilger & Podlech | | a | | Microparacaryum (Popov ex Riedl) Hilger & Podlech | | Boraginaceae |
| Microula Benth. | | a | | Microula Benth. | | Boraginaceae |
| Mimophytum Greenm. | | a | | Mimophytum Greenm. | | Boraginaceae |
| Moltkia Lehm. | | a | | Moltkia Lehm. | | Boraginaceae |
| Moltkiopsis I. M. Johnst. | | a | | Moltkiopsis I. M. Johnst. | | Boraginaceae |
| Moritzia DC. ex Meisn. | | a | | Moritzia DC. ex Meisn. | | Boraginaceae |
| Munbya Boiss. | Arnebia Forssk. | | | Munbya Boiss. | Arnebia Forssk. | Boraginaceae |
| Myosotidium Hook. | | a | | Myosotidium Hook. | | Boraginaceae |
| Myosotis L. | | a | | Myosotis L. | | Boraginaceae |
| Neatostema I. M. Johnst. | | a | | Neatostema I. M. Johnst. | | Boraginaceae |
| Nephrocarya P. Candargy | Nonea Medik. | | | Nephrocarya P. Candargy | Nonea Medik. | Boraginaceae |
| Nesocaryum I. M. Johnst. | | a | | Nesocaryum I. M. Johnst. | | Boraginaceae |
| Nihon A. Otero et al. | | a | | Nihon A. Otero et al. | | Boraginaceae |
| Nomosa I. M. Johnst. | Lithospermum L. | | | Nomosa I. M. Johnst. | Lithospermum L. | Boraginaceae |
| Nonea Medik. | | a | | Nonea Medik. | | Boraginaceae |
| Octosomatium Gagnep. | Trichodesma R. Br. | | | Octosomatium Gagnep. | Trichodesma R. Br. | Boraginaceae |
| Ogastemma Brummitt | | a | | Ogastemma Brummitt | | Boraginaceae |
| Omphalodes Mill. | | a | | Omphalodes Mill. | | Boraginaceae |
| Omphalolappula Brand | | a | | Omphalolappula Brand | | Boraginaceae |
| Omphalotrigonotis W. T. Wang | | a | | Omphalotrigonotis W. T. Wang | | Boraginaceae |
| Oncaglossum Sutorý | | a | | Oncaglossum Sutorý | | Boraginaceae |
| Onochiles Bubani | Alkanna Tausch | | | Onochiles Bubani | Alkanna Tausch | Boraginaceae |
| Onosma L. | | a | | Onosma L. | | Boraginaceae |
| Onosmodium Michx. | Lithospermum L. | | | Onosmodium Michx. | Lithospermum L. | Boraginaceae |
| Oplexion Raf. | Lobostemon Lehm. | | | Oplexion Raf. | Lobostemon Lehm. | Boraginaceae |
| Oreocarya Greene | Cryptantha Lehm. ex G. Don | | | Oreocarya Greene | Cryptantha Lehm. ex G. Don | Boraginaceae |
| Oreocharis (Decne.) Lindl. | | a | | Oreocharis (Decne.) Lindl. | | Boraginaceae |
| Oreogenia I. M. Johnst. | Lasiocaryum I. M. Johnst. | | | Oreogenia I. M. Johnst. | Lasiocaryum I. M. Johnst. | Boraginaceae |
| Parabouchetia Baill. | | | | Parabouchetia Baill. | | Boraginaceae |
| Paracaryopsis (Riedl) R. R. Mill | Adelocaryum Brand | | | Paracaryopsis (Riedl) R. R. Mill | Adelocaryum Brand | Boraginaceae |
| Paracaryum (A. DC.) Boiss. | | a | | Paracaryum (A. DC.) Boiss. | | Boraginaceae |
| Paracynoglossum Popov | Cynoglossum L. | | | Paracynoglossum Popov | Cynoglossum L. | Boraginaceae |
| Paramoltkia Greuter | | a | | Paramoltkia Greuter | | Boraginaceae |
| Paraskevia W. Sauer & G. Sauer | Pulmonaria L. | | | Paraskevia W. Sauer & G. Sauer | Pulmonaria L. | Boraginaceae |
| Pardoglossum E. Barbier & Mathez | | a | | Pardoglossum E. Barbier & Mathez | | Boraginaceae |
| Pectocarya DC. | | a | | Pectocarya DC. | | Boraginaceae |
| Pedinogyne Brand | Trigonotis Steven | | | Pedinogyne Brand | Trigonotis Steven | Boraginaceae |
| Pentaglottis Tausch | | a | | Pentaglottis Tausch | | Boraginaceae |
| Penthysa Raf. | Lobostemon Lehm. | | | Penthysa Raf. | Lobostemon Lehm. | Boraginaceae |
| Perittostema I. M. Johnst. | Lithospermum L. | | | Perittostema I. M. Johnst. | Lithospermum L. | Boraginaceae |
| Perittostemma I. M. Johnst., orth. var. | Lithospermum L. | | | Perittostemma I. M. Johnst., orth. var. | Lithospermum L. | Boraginaceae |
| Phyllocara Guşul. | Anchusa L. | | | Phyllocara Guşul. | Anchusa L. | Boraginaceae |
| Plagiobothrys Fisch. & C. A. Mey. | | a | | Plagiobothrys Fisch. & C. A. Mey. | | Boraginaceae |
| Pneumaria Hill | Mertensia Roth | | | Pneumaria Hill | Mertensia Roth | Boraginaceae |
| Podonosma Boiss. | | a | | Podonosma Boiss. | | Boraginaceae |
| Pontechium Böhle & Hilger | | a | | Pontechium Böhle & Hilger | | Boraginaceae |
| Procopiana Guşul., orth. var. | Symphytum L. | | | Procopiana Guşul., orth. var. | Symphytum L. | Boraginaceae |
| Procopiania Guşul. | Symphytum L. | | | Procopiania Guşul. | Symphytum L. | Boraginaceae |
| Pseudomertensia Riedl | Decalepidanthus Riedl | | | Pseudomertensia Riedl | Decalepidanthus Riedl | Boraginaceae |
| Psilolaemus I. M. Johnst. | Lithospermum L. | | | Psilolaemus I. M. Johnst. | Lithospermum L. | Boraginaceae |
| Pulmonaria L. | | a | | Pulmonaria L. | | Boraginaceae |
| Raclathris Raf. | Rochelia Rchb. | | | Raclathris Raf. | Rochelia Rchb. | Boraginaceae |
| Rhytispermum Link | | a | | Rhytispermum Link | | Boraginaceae |
| Rindera Pall. | | a | | Rindera Pall. | | Boraginaceae |
| Rochelia Rchb. | | a | | Rochelia Rchb. | | Boraginaceae |
| Scapicephalus Ovcz. & Czukav. | Decalepidanthus Riedl | | | Scapicephalus Ovcz. & Czukav. | Decalepidanthus Riedl | Boraginaceae |
| Schistocaryum Franch. | Microula Benth. | | | Schistocaryum Franch. | Microula Benth. | Boraginaceae |
| Sclerocaryopsis Brand | Lappula Moench | | | Sclerocaryopsis Brand | Lappula Moench | Boraginaceae |
| Selkirkia Hemsl. | | a | | Selkirkia Hemsl. | | Boraginaceae |
| Sericostoma Stocks | Echiochilon Desf. | | | Sericostoma Stocks | Echiochilon Desf. | Boraginaceae |
| Setulocarya R. R. Mill & D. G. Long | Lasiocaryum I. M. Johnst. | | | Setulocarya R. R. Mill & D. G. Long | Lasiocaryum I. M. Johnst. | Boraginaceae |
| Simpsonanthus Guilliams et al. | | a | | Simpsonanthus Guilliams et al. | | Boraginaceae |
| Sinojohnstonia Hu | | a | | Sinojohnstonia Hu | | Boraginaceae |
| Sinojohstonia Hu, orth. var. | Sinojohnstonia Hu | | | Sinojohstonia Hu, orth. var. | Sinojohnstonia Hu | Boraginaceae |
| Solenanthus Ledeb. | | a | | Solenanthus Ledeb. | | Boraginaceae |
| Steenhammera Rchb. | Mertensia Roth | | | Steenhammera Rchb. | Mertensia Roth | Boraginaceae |
| Stenosolenium Turcz. | | a | | Stenosolenium Turcz. | | Boraginaceae |
| Stephanocaryum Popov | | a | | Stephanocaryum Popov | | Boraginaceae |
| Suchtelenia Kar. ex Meisn. | | a | | Suchtelenia Kar. ex Meisn. | | Boraginaceae |
| Symphytum L. | | a | | Symphytum L. | | Boraginaceae |
| Tetraedrocarpus O. Schwartz | Echiochilon Desf. | | | Tetraedrocarpus O. Schwartz | Echiochilon Desf. | Boraginaceae |
| Thaumatocaryon Baill. | | a | | Thaumatocaryon Baill. | | Boraginaceae |
| Thyrocarpus Hance | | a | | Thyrocarpus Hance | | Boraginaceae |
| Tianschaniella B. Fedtsch. ex Popov | | a | | Tianschaniella B. Fedtsch. ex Popov | | Boraginaceae |
| Toxostigma A. Rich. | Arnebia Forssk. | | | Toxostigma A. Rich. | Arnebia Forssk. | Boraginaceae |
| Trachelanthus Kunze | | a | | Trachelanthus Kunze | | Boraginaceae |
| Trachystemon D. Don | | a | | Trachystemon D. Don | | Boraginaceae |
| Traxara Raf. | Lobostemon Lehm. | | | Traxara Raf. | Lobostemon Lehm. | Boraginaceae |
| Trichodesma R. Br. | | a | | Trichodesma R. Br. | | Boraginaceae |
| Trigonocaryum Trautv. | Myosotis L. | | | Trigonocaryum Trautv. | Myosotis L. | Boraginaceae |
| Trigonotis Steven | | a | | Trigonotis Steven | | Boraginaceae |
| Tysonia Bolus | Afrotysonia Rauschert | | | Tysonia Bolus | Afrotysonia Rauschert | Boraginaceae |
| Ulugbekia Zakirov | | a | | Ulugbekia Zakirov | | Boraginaceae |
| Vaupelia Brand | Cystostemon Balf. f. | | | Vaupelia Brand | Cystostemon Balf. f. | Boraginaceae |
| Wheelerella G. B. Grant | Cryptantha Lehm. ex G. Don | | | Wheelerella G. B. Grant | Cryptantha Lehm. ex G. Don | Boraginaceae |
| Zwackhia Sendtn. ex Rchb. | Halacsya Dörfl. | | | Zwackhia Sendtn. ex Rchb. | Halacsya Dörfl. | Boraginaceae |