| Fissidens eremicus J.Guerra & J.A.Jiménez | Fissidentaceae | Península Ibérica, norte de África y Canarias | https://doi.org/10.1080/03736687.2021.1910435 |
| Schistidium memnonium J.Guerra | Grimmiaceae | España, Grecia, Alemania | https://doi.org/10.1080/11263504.2020.1762789 |
| Syntrichia splendida M.T.Gallego & M.J.Cano | Pottiaceae | Chile | https://doi.org/10.1080/03736687.2021.1927655 |
| Narcissus ramirezii P. Gómez-Murillo, I. Arellano-Martín & A. Sánchez García | Amaryllidaceae | Sierra de Camarolos (Málaga) | http://www.floramontiberica.org/FM/079/Flora_Montib_079_116-119_2021.pdf |
| Hieracium balnearicum Mateo, Egido & Gómiz | Asteraceae | Panticosa (Huesca) | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium candanchuanum Mateo, Egido & Gómiz | Asteraceae | Huesca | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium flocciprenanthoides Mateo, Egido & Gómiz | Asteraceae | León | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium floccisaliencianum Mateo, Egido & Gómiz | Asteraceae | Cordillera Cantábrica | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium glorioanum Mateo, Egido & Gómiz | Asteraceae | Cantabria | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium mansanetianum Mateo | Asteraceae | Tarragona | http://www.floramontiberica.org/FM/080/Flora_Montib_080_136-138_2021.pdf |
| Hieracium megalaniferum Mateo, Egido & Gómiz | Asteraceae | Huesca | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium megandurense Mateo, Egido & Gómiz | Asteraceae | Huesca | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium neobenascanum Mateo, Egido & Gómiz | Asteraceae | Huesca | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium paleoscense Mateo, Egido & Gómiz | Asteraceae | Huesca | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium petri-soriae Mateo, Egido & Gómiz | Asteraceae | Huesca | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium riolagoanum Mateo, Egido & Gómiz | Asteraceae | León | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium rivas-martinezii Mateo | Asteraceae | Teruel y Castellón | http://www.floramontiberica.org/FM/080/Flora_Montib_080_136-138_2021.pdf |
| Hieracium santhilaricum Mateo, Egido & Gómiz | Asteraceae | Gerona | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium valdeonense Mateo, Egido & Gómiz | Asteraceae | León | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Hieracium villanuense Mateo, Egido & Gómiz | Asteraceae | Huesca | http://www.floramontiberica.org/FM/079/Flora_Montib_079_097-112_2021.pdf |
| Pentacalia viburnifolia J.Calvo & A.Fuentes | Asteraceae | Bolivia | https://doi.org/10.3417/2021649 |
| Pericallis tirmensis Marrero Rodr. & C. Santiago | Asteraceae | Artenara (Gran Canaria) | https://descargas.grancanaria.com/jardincanario/documentosweb/botanica-macaronesica/31/11Bot-Macar31,%20Pericallis%20tirmensis%20nov,%20%c1.%20Marrero,%20pag%20191-211.pdf |
| Pilosella aguilellae Mateo | Asteraceae | Sierra Nevada (Granada) | http://www.floramontiberica.org/FM/080/Flora_Montib_080_132-135_2021.pdf |
| Pilosella gorbeana Mateo | Asteraceae | Sierra del Gorbea (Álava) | http://www.floramontiberica.org/FM/080/Flora_Montib_080_132-135_2021.pdf |
| Senecio fernandinus H.Beltrán & J.Calvo | Asteraceae | Perú | https://doi.org/10.11646/phytotaxa.479.2.6 |
| Senecio phlomidifolius H.Beltrán | Asteraceae | Perú | https://doi.org/10.11646/phytotaxa.479.2.6 |
| Werneria praetermissa J.Calvo | Asteraceae | NW Argentina y S Bolivia | https://doi.org/10.1111/njb.03340 |
| Spergularia namaquensis Schltr. ex M.Á.Alonso, M.B.Crespo, Mart.-Azorín & Mucina | Caryophyllaceae | Namaqualand (NW Sudáfrica) | https://doi.org/10.1007/s00606-021-01743-6 |
| Spergularia quartzicola M.Á.Alonso, M.B.Crespo, Mart.-Azorín & Mucina | Caryophyllaceae | Namaqualand (NW Sudáfrica) | https://doi.org/10.1080/11263504.2021.1887955 |
| Varronia teguorum Fern. Alonso & J.I.M. Melo | Cordiaceae | Boyacá y Cundinamarca (Colombia) | https://doi.org/10.11646/phytotaxa.507.1.8 |
| Greenovia millennium Arango | Crassulaceae | Macizo de Teno (Tenerife) | https://descargas.grancanaria.com/jardincanario/documentosweb/botanica-macaronesica/31/2Bot-Macar31_Greenovia,_Octavio%20Arango.pdf |
| Carex gordon-grayae Luceño, Márq.-Corro & Sánchez-Villegas | Cyperaceae | Sudáfrica | https://peerj.com/articles/11336 |
| Carex leviosa Míguez, Jim.-Mejías, H. Schaef. & Martín-Bravo | Cyperaceae | Azores (Portugal) | https://doi.org/10.1600/036364421X16231782047442 |
| Carex pedicularis Jim.Mejías & Naczi | Cyperaceae | SE de Sudamérica | https://doi.org/10.1093/botlinnean/boaa100 |
| Carex phylloscirpoides Saldivia, S.Gebauer, Martín-Bravo & Jim.Mejías | Cyperaceae | Atacama (Chile) | https://doi.org/10.1600/036364421X16128061189567 |
| Carex sequeirae Míguez, Jim.-Mejías, Benítez-Benítez & Martín- Bravo | Cyperaceae | Madeira (Portugal) | https://doi.org/10.1600/036364421X16231782047442 |
| Croton almadinensis Caruzo & Riina | Euphorbiaceae | Sur de Bahia (Brasil) | https://doi.org/10.3417/2021669 |
| Croton amaraliae Riina & P.E.Berry | Euphorbiaceae | C y S Amazonia (Brasil) | https://doi.org/10.3417/2021669 |
| Croton cuadrosii P.E.Berry | Euphorbiaceae | Bolívar (Colombia) | https://doi.org/10.3417/2021669 |
| Croton curculiospermus Riina | Euphorbiaceae | Cochabamba (Bolivia) | https://doi.org/10.3417/2021669 |
| Croton huamaliensis Riina | Euphorbiaceae | Huánuco (Perú) | https://doi.org/10.3417/2021669 |
| Croton kallunkiae Riina & Caruzo | Euphorbiaceae | Espírito Santo y Bahia (Brasil) | https://doi.org/10.3417/2021669 |
| Croton pluriglandulosus Carn.-Torres & Riina | Euphorbiaceae | W Brasil | https://doi.org/10.3417/2021669 |
| Euphorbia blepharadena O.L.M.Silva & Cordeiro | Euphorbiaceae | Minas Gerais (Brasil) | https://doi.org/10.5852/ejt.2021.733.1223 |
| Euphorbia longipedunculata O.L.M.Silva & Riina | Euphorbiaceae | Goiás (Brasil) | https://doi.org/10.5852/ejt.2021.733.1223 |
| Euphorbia sobolifera O.L.M.Silva & P.J.Braun | Euphorbiaceae | Bahia (Brasil) | https://doi.org/10.5852/ejt.2021.733.1223 |
| Triandra pellabergensis Mart.-Azorín, M.B.Crespo, M.Á.Alonso, N.R.Crouch & M.Pinter | Hyacinthaceae | Pellaberg (Sudáfrica) | https://doi.org/10.11646/phytotaxa.487.1.5 |
| Vera-duthiea capillifolia A.Patzelt, M.Pinter & Mart.-Azorín | Hyacinthaceae | Omán | https://doi.org/10.11646/phytotaxa.524.1.5 |
| Quararibea cornejoi Fern.Alonso | Malvaceae | Manabí, Los Ríos y Pichincha (Ecuador) | https://doi.org/10.3989/ajbm.2584 |
| Quararibea latilimbata Fern.Alonso | Malvaceae | Antioquia (Colombia) | https://doi.org/10.3989/ajbm.2584 |
| Quararibea villanuevae Fern.Alonso | Malvaceae | Colombia | https://doi.org/10.3989/ajbm.2584 |
| Plantago chihuahuensis Shipunov | Plantaginaceae | Chihuahua (México) | https://doi.org/10.3390/plants10112299 |