| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| NEDEG | Nemacaulis denudata Nutt. var. gracilis Goodman & L. Benson | cottonheads | Polygonaceae
|
| NEDE | Nemacaulis denudata Nutt. | cottonheads | Polygonaceae
|
| NEMAC | Nemacaulis Nutt. | cottonheads | Polygonaceae
|
| NECA | Nemacladus capillaris Greene | common threadplant | Campanulaceae
|
| NEGLG | Nemacladus glanduliferus Jepson var. glanduliferus | glandular threadplant | Campanulaceae
|
| NEGLO | Nemacladus glanduliferus Jepson var. orientalis McVaugh | glandular threadplant | Campanulaceae
|
| NEGL | Nemacladus glanduliferus Jepson | glandular threadplant | Campanulaceae
|
| NEGR | Nemacladus gracilis Eastw. | slender threadplant | Campanulaceae
|
| NEIN | Nemacladus interior (Munz) G.T. Robbins | Sierra threadplant | Campanulaceae
|
| NELOB | Nemacladus longiflorus Gray var. breviflorus McVaugh | longflower threadplant | Campanulaceae
|
| NELOL | Nemacladus longiflorus Gray var. longiflorus | longflower threadplant | Campanulaceae
|
| NELO | Nemacladus longiflorus Gray | longflower threadplant | Campanulaceae
|
| NEMO | Nemacladus montanus Greene | mountain threadplant | Campanulaceae
|
| NEPI | Nemacladus pinnatifidus Greene | combleaf threadplant | Campanulaceae
|
| NERA | Nemacladus ramosissimus Nutt. | smallflower threadplant | Campanulaceae
|
| NERI | Nemacladus rigidus Curran | stoutstem threadplant | Campanulaceae
|
| NERUI | Nemacladus rubescens Greene var. interior (Munz) McVaugh | Nemacladus interior | Campanulaceae
|
| NERUR | Nemacladus rubescens Greene var. rubescens | desert threadplant | Campanulaceae
|
| NERUT | Nemacladus rubescens Greene var. tenuis McVaugh | desert threadplant | Campanulaceae
|
| NERU | Nemacladus rubescens Greene | desert threadplant | Campanulaceae
|
| NESE | Nemacladus secundiflorus G.T. Robbins | onesided threadplant | Campanulaceae
|
| NESI | Nemacladus sigmoideus G.T. Robbins | sigmoid threadplant | Campanulaceae
|
| NETW | Nemacladus twisselmannii J.T. Howell | Twisselmann's threadplant | Campanulaceae
|
| NEMAC2 | Nemacladus Nutt. | threadplant | Campanulaceae
|
| NEAC2 | Nemastylis acuta Herbert | Nemastylis geminiflora | Iridaceae
|
| NECO7 | Nemastylis coelestina (Bartr.) Nutt. | Calydorea coelestina | Iridaceae
|
| NEFL | Nemastylis floridana Small | fallflowering pleatleaf | Iridaceae
|
| NEGE | Nemastylis geminiflora Nutt. | prairie pleatleaf | Iridaceae
|
| NENU | Nemastylis nuttallii Pickering ex R.C. Foster | Nuttall's pleatleaf | Iridaceae
|
| NEPR3 | Nemastylis pringlei S. Wats. | Nemastylis tenuis ssp. pringlei | Iridaceae
|
| NEPU5 | Nemastylis purpurea Herbert | Alophia drummondii | Iridaceae
|
| NETEP2 | Nemastylis tenuis (Herbert) Benth. ssp. pringlei (S. Wats.) Goldblatt | Pringle's pleatleaf | Iridaceae
|
| NETEP3 | Nemastylis tenuis (Herbert) Benth. var. pringlei (S. Wats.) R.C. Foster | Nemastylis tenuis ssp. pringlei | Iridaceae
|
| NETE | Nemastylis tenuis (Herbert) Benth. | southwestern pleatleaf | Iridaceae
|
| NEMAS | Nemastylis Nutt. | pleatleaf | Iridaceae
|
| NEMES2 | Nemesia Vent. | nemesia | Scrophulariaceae
|
| NEBI2 | Nemexia biltmoreana Small | Smilax biltmoreana | Smilacaceae
|
| NEEC | Nemexia ecirrata (Engelm. ex Kunth) Small | Smilax ecirrata | Smilacaceae
|
| NEHE3 | Nemexia herbacea (L.) Small | Smilax herbacea | Smilacaceae
|
| NEHU | Nemexia hugeri Small | Smilax hugeri | Smilacaceae
|
| NELA4 | Nemexia lasioneura (Hook.) Rydb. | Smilax lasioneura | Smilacaceae
|
| NELE | Nemexia leptanthera (Pennell) Small | Smilax pseudochina | Smilacaceae
|
| NEPU4 | Nemexia pulverulenta (Michx.) Small | Smilax pulverulenta | Smilacaceae
|
| NETA | Nemexia tamnifolia (Michx.) Small | Smilax pseudochina | Smilacaceae
|
| NECO6 | Nemopanthus collinus (Alexander) R. Clark | Ilex collina | Aquifoliaceae
|
| NEMU2 | Nemopanthus mucronatus (L.) Loes. | catberry | Aquifoliaceae
|
| NEMOP2 | Nemopanthus Raf. | nemopanthus | Aquifoliaceae
|
| NEAP | Nemophila aphylla (L.) Brummitt | smallflower baby blue eyes | Hydrophyllaceae
|
| NEBR | Nemophila breviflora Gray | basin nemophila | Hydrophyllaceae
|
| NEHET | Nemophila heterophylla Fisch. & C.A. Mey. var. tenera (Eastw.) A. Nels. & J.F. Macbr. | Nemophila heterophylla | Hydrophyllaceae
|
| NEHE | Nemophila heterophylla Fisch. & C.A. Mey. | small baby blue eyes | Hydrophyllaceae
|
| NEKI | Nemophila kirtleyi Henderson | Kirtley's nemophila | Hydrophyllaceae
|
| NEMA | Nemophila maculata Benth. ex Lindl. | fivespot | Hydrophyllaceae
|
| NEMEA2 | Nemophila menziesii Hook. & Arn. ssp. atomaria (Fisch. & C.A. Mey.) Brand | Nemophila menziesii var. atomaria | Hydrophyllaceae
|
| NEMEA6 | Nemophila menziesii Hook. & Arn. ssp. australis Brand | Nemophila menziesii var. integrifolia | Hydrophyllaceae
|
| NEMEI2 | Nemophila menziesii Hook. & Arn. ssp. integrifolia (Parish) Munz | Nemophila menziesii var. integrifolia | Hydrophyllaceae
|
| NEMEA3 | Nemophila menziesii Hook. & Arn. var. annulata Chandler | Nemophila menziesii var. integrifolia | Hydrophyllaceae
|
| NEMEA | Nemophila menziesii Hook. & Arn. var. atomaria (Fisch. & C.A. Mey.) Chandler | baby blue eyes | Hydrophyllaceae
|
| NEMEI3 | Nemophila menziesii Hook. & Arn. var. incana Brand | Nemophila menziesii var. integrifolia | Hydrophyllaceae
|
| NEMEI | Nemophila menziesii Hook. & Arn. var. integrifolia Parish | baby blue eyes | Hydrophyllaceae
|
| NEMEI4 | Nemophila menziesii Hook. & Arn. var. intermedia (Bioletti) Brand | Nemophila menziesii var. integrifolia | Hydrophyllaceae
|
| NEMEM | Nemophila menziesii Hook. & Arn. var. menziesii | baby blue eyes | Hydrophyllaceae
|
| NEMER | Nemophila menziesii Hook. & Arn. var. rotata (Eastw.) Chandler | Nemophila menziesii var. integrifolia | Hydrophyllaceae
|
| NEMEV | Nemophila menziesii Hook. & Arn. var. venosa (Jepson) Brand | Nemophila menziesii var. menziesii | Hydrophyllaceae
|
| NEME | Nemophila menziesii Hook. & Arn. | baby blue eyes | Hydrophyllaceae
|
| NEMI2 | Nemophila microcalyx (Nutt.) Fisch. & C.A. Mey. | Nemophila aphylla | Hydrophyllaceae
|
| NEPAA | Nemophila parviflora Dougl. ex Benth. var. austiniae (Eastw.) Brand | smallflower nemophila | Hydrophyllaceae
|
| NEPAP | Nemophila parviflora Dougl. ex Benth. var. parviflora | smallflower nemophila | Hydrophyllaceae
|
| NEPAQ | Nemophila parviflora Dougl. ex Benth. var. quercifolia (Eastw.) Chandler | smallflower nemophila | Hydrophyllaceae
|
| NEPA | Nemophila parviflora Dougl. ex Benth. | smallflower nemophila | Hydrophyllaceae
|
| NEPE | Nemophila pedunculata Dougl. ex Benth. | littlefoot nemophila | Hydrophyllaceae
|
| NEPH | Nemophila phacelioides Nutt. | largeflower baby blue eyes | Hydrophyllaceae
|
| NEPUF | Nemophila pulchella Eastw. var. fremontii (Elmer) Constance | Fremont's baby blue eyes | Hydrophyllaceae
|
| NEPUG | Nemophila pulchella Eastw. var. gracilis (Eastw.) Constance | Eastwood's baby blue eyes | Hydrophyllaceae
|
| NEPUP2 | Nemophila pulchella Eastw. var. pulchella | Eastwood's baby blue eyes | Hydrophyllaceae
|
| NEPU2 | Nemophila pulchella Eastw. | Eastwood's baby blue eyes | Hydrophyllaceae
|
| NESP | Nemophila spatulata Coville | Sierra baby blue eyes | Hydrophyllaceae
|
| NETR | Nemophila triloba (Raf.) Thieret | Nemophila aphylla | Hydrophyllaceae
|
| NEMOP | Nemophila Nutt. | baby blue eyes | Hydrophyllaceae
|
| NEAQ2 | Neobeckia aquatica (Eat.) Greene | lakecress | Brassicaceae
|
| NEOBE | Neobeckia Greene | lakecress | Brassicaceae
|
| NEMI3 | Neobesseya missouriensis (Sweet) Britt. & Rose | Escobaria missouriensis var. missouriensis | Cactaceae
|
| NEWI | Neobesseya wissmannii (Hildmann ex K. Schum.) Britt. & Rose | Escobaria missouriensis var. missouriensis | Cactaceae
|
| NESU4 | Neocardotia subnigra (Mitt.) Th�r. & Bartr. in Th�r. | Rhexophyllum subnigrum | Pottiaceae
|
| NESE3 | Neocleome serrata (Jacq.) Small | Cleome serrata | Capparaceae
|
| NESP2 | Neocleome spinosa (Jacq.) Small | Cleome spinosa | Capparaceae
|
| NEST4 | Neoevansia striata (Brandeg.) S�nchez-Mejorada | Peniocereus striatus | Cactaceae
|
| NEAH | Neofuscelia ahtii (Essl.) Essl. | | Parmeliaceae
|
| NEAT | Neofuscelia atticoides (Essl.) Essl. | | Parmeliaceae
|
| NEBR3 | Neofuscelia brunella (Essl.) Essl. | | Parmeliaceae
|
| NECH | Neofuscelia chiricahuensis (R. Anderson & W. A. Weber) Essl. | | Parmeliaceae
|
| NEIN4 | Neofuscelia infrapallida (Essl.) Essl. | | Parmeliaceae
|
| NELO4 | Neofuscelia loxodes (Nyl.) Essl. | | Parmeliaceae
|
| NEOC2 | Neofuscelia occidentalis (Essl.) Essl. | | Parmeliaceae
|
| NEPU6 | Neofuscelia pustulosa (Essl.) Essl. | | Parmeliaceae
|
| NESU | Neofuscelia subhosseana (Essl.) Essl. | | Parmeliaceae
|
| NEVE3 | Neofuscelia verruculifera (Nyl.) Essl. | | Parmeliaceae
|
| NEOFU | Neofuscelia Essl. | neofuscelia | Parmeliaceae
|
| NEFI | Neogaerrhinum filipes (Gray) Rothm. | Filipes snapdragon | Scrophulariaceae
|
| NEKE | Neogaerrhinum kelloggii (Greene) Thieret | Neogaerrhinum strictum | Scrophulariaceae
|
| NEST2 | Neogaerrhinum strictum (Hook. & Arn.) Rothm. | Kellog snapdragon | Scrophulariaceae
|