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Plant List
Indexed Alphabetically by Common Name
N-O
For a list of plants indexed by Scientific Name, click here
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| National Common Name | Scientific Name with Author | Symbol | Family | |
| Na Pali sandmat | Chamaesyce eleanoriae D.H. Lorence & W.L. Wagner | CHEL7 | Euphorbiaceae | |
| Nadvornik's horsehair lichen | Bryoria nadvornikiana (Gyelnik) Brodo & D. Hawksw. | BRNA60 | Parmeliaceae | |
| naked albizia | Albizia carbonaria Britt. | ALCA8 | Fabaceae | |
| naked mariposa lily | Calochortus nudus S. Wats. | CANU2 | Liliaceae | |
| naked milkvetch | Astragalus serenoi (Kuntze) Sheldon | ASSE4 | Fabaceae | |
| naked milkvetch | Astragalus serenoi (Kuntze) Sheldon var. serenoi | ASSES3 | Fabaceae | |
| naked milkvetch | Astragalus serenoi (Kuntze) Sheldon var. sordescens Barneby | ASSES | Fabaceae | |
| naked oat | Avena nuda L. [excluded] | AVNU2 | Poaceae | |
| naked sedge | Carex nudata W. Boott | CANU5 | Cyperaceae | |
| nakedstem alkaliweed | Cressa nudicaulis Griseb. | CRNU | Convolvulaceae | |
| nakedstem hawksbeard | Crepis pleurocarpa Gray | CRPL | Asteraceae | |
| nakedstem livingvase | Aechmea nudicaulis (L.) Griseb. | AENU | Bromeliaceae | |
| nakedwood | Colubrina L.C. Rich. ex Brongn. | COLUB | Rhamnaceae | |
| nalta jute | Corchorus olitorius L. | COOL | Tiliaceae | |
| Nantucket serviceberry | Amelanchier nantucketensis Bickn. | AMNA2 | Rosaceae | |
| Napa cryptantha | Cryptantha hispidula Greene ex Brand | CRHI | Boraginaceae | |
| Napa false indigo | Amorpha californica Nutt. var. napensis Jepson | AMCAN | Fabaceae | |
| Napa milkvetch | Astragalus clarianus Jepson | ASCL6 | Fabaceae | |
| Napali coast papala | Charpentiera densiflora Sohmer | CHDE3 | Amaranthaceae | |
| Napoleon's plume | Bauhinia monandra Kurz | BAMO2 | Fabaceae | |
| narcissus anemone | Anemone narcissiflora L. | ANNA | Ranunculaceae | |
| narcissus anemone | Anemone narcissiflora L. var. monantha DC. | ANNAM2 | Ranunculaceae | |
| narcissus anemone | Anemone narcissiflora L. var. villosissima DC. | ANNAV3 | Ranunculaceae | |
| narcissus anemone | Anemone narcissiflora L. var. zephyra (A. Nels.) Dutton & Keener | ANNAZ2 | Ranunculaceae | |
| narrow corncockle | Agrostemma brachyloba (Fenzl) Hammer | AGBR4 | Caryophyllaceae | |
| narrow helmet orchid | Cranichis tenuis Reichenb. f. [excluded] | CRTE6 | Orchidaceae | |
| narrow lineleaf fern | Antrophyum lineatum (Sw.) Kaulfuss | ANLI8 | Vittariaceae | |
| narrow strapfern | Campyloneurum angustifolium (Sw.) Fée | CAAN9 | Polypodiaceae | |
| narrowfruit sedge | Carex specifica Bailey | CASP4 | Cyperaceae | |
| narrowleaf angelon | Angelonia angustifolia Benth. | ANAN5 | Scrophulariaceae | |
| narrowleaf arnica | Arnica angustifolia Vahl | ARAN5 | Asteraceae | |
| narrowleaf arnica | Arnica angustifolia Vahl ssp. angustifolia | ARANA | Asteraceae | |
| narrowleaf arnica | Arnica angustifolia Vahl ssp. tomentosa (Macoun) G.W. Douglas & G. Ruyle-Douglas | ARANT | Asteraceae | |
| narrowleaf bittercress | Cardamine impatiens L. | CAIM | Brassicaceae | |
| narrowleaf blue eyed Mary | Collinsia linearis Gray | COLI | Scrophulariaceae | |
| narrow-leaf bottlebrush | Callistemon linearis (Schrad. & J. C. Wendl.) Sweet | CALI24 | Myrtaceae | |
| narrowleaf brickellbush | Brickellia oblongifolia Nutt. var. linifolia (D.C. Eat.) B.L. Robins. | BROBL | Asteraceae | |
| narrowleaf crucianella | Crucianella angustifolia L. | CRAN11 | Rubiaceae | |
| narrowleaf desert honeysuckle | Anisacanthus linearis (Hagen) Henrickson & Lott | ANLI3 | Acanthaceae | |
| narrowleaf goldenaster | Chrysopsis linearifolia Semple | CHLI4 | Asteraceae | |
| narrowleaf goldenaster | Chrysopsis linearifolia Semple ssp. linearifolia | CHLIL | Asteraceae | |
| narrowleaf goosefoot | Chenopodium leptophyllum (Moq.) Nutt. ex S. Wats. | CHLE4 | Chenopodiaceae | |
| narrowleaf grapefern | Botrychium lineare W.H. Wagner | BOLI7 | Ophioglossaceae | |
| narrowleaf hawksbeard | Crepis tectorum L. | CRTE3 | Asteraceae | |
| narrowleaf midsorus fern | Blechnum polypodioides Raddi | BLPO | Blechnaceae | |
| narrowleaf milkvetch | Astragalus pectinatus (Dougl. ex Hook.) Dougl. ex G. Don | ASPE5 | Fabaceae | |
| narrowleaf onion | Allium amplectens Hook. | ALAM2 | Liliaceae | |
| narrowleaf pussytoes | Antennaria stenophylla (Gray) Gray | ANST2 | Asteraceae | |
| narrowleaf rhombopod | Cleomella angustifolia Torr. | CLAN | Capparaceae | |
| narrowleaf silverbush | Argythamnia lanceolata (Benth.) Muell.-Arg. | ARLA12 | Euphorbiaceae | |
| narrowleaf soap plant | Chlorogalum angustifolium Kellogg | CHAN2 | Liliaceae | |
| narrowleaf spiderling | Boerhavia linearifolia Gray | BOLI2 | Nyctaginaceae | |
| narrowleaf spineflower | Chorizanthe angustifolia Nutt. | CHAN3 | Polygonaceae | |
| narrowleaf suncup | Camissonia refracta (S. Wats.) Raven | CARE2 | Onagraceae | |
| narrowleaf terciopelo | Clidemia angustilamina Judd & Skean | CLAN8 | Melastomataceae | |
| narrowleaf thorow wax | Bupleurum odontites L. | BUOD2 | Apiaceae | |
| narrowleaf water plantain | Alisma gramineum Lej. | ALGR | Alismataceae | |
| narrow-leaf wattle | Acacia mucronata Willd. ex H. L. Wendl. | ACMU6 | Fabaceae | |
| narrowleaf wild leek | Allium burdickii (Hanes) A.G. Jones | ALBU2 | Liliaceae | |
| narrow-leaved iceplant | Conicosia N.R. Br. | CONIC | Aizoaceae | |
| narrow-leaved iceplant | Conicosia pugioniformis (L.) N.E. Br. | COPU18 | Aizoaceae | |
| narrowpod sensitive pea | Chamaecrista lineata (Sw.) Greene | CHLI5 | Fabaceae | |
| narrowpod sensitive pea | Chamaecrista lineata (Sw.) Greene var. brachyloba (Griseb.) Irwin & Barneby | CHLIB | Fabaceae | |
| narrowpod sensitive pea | Chamaecrista lineata (Sw.) Greene var. keyensis (Pennell) Irwin & Barneby | CHLIK | Fabaceae | |
| narrowstem cryptantha | Cryptantha gracilis Osterhout | CRGR3 | Boraginaceae | |
| Nashville hawthorn | Crataegus ater Ashe | CRAT3 | Rosaceae | |
| Natal glorybower | Clerodendrum glabrum E. Mey. | CLGL2 | Verbenaceae | |
| Natal plum | Anechites nerium (Aubl.) Urban | ANNE2 | Apocynaceae | |
| Nathorist's aspicilia | Aspicilia nathoristii (Lynge) J. W. Thomson | ASNA7 | Hymeneliaceae | |
| native begonia | Begonia decandra Pavón ex A. DC. | BEDE2 | Begoniaceae | |
| native caper | Capparis sandwichiana DC. | CASA4 | Capparaceae | |
| native sedge | Carex vernacula Bailey | CAVE5 | Cyperaceae | |
| Naturita milkvetch | Astragalus naturitensis Payson | ASNA | Fabaceae | |
| Navajo saltbush | Atriplex navajoensis C.A. Hanson | ATNA | Chenopodiaceae | |
| Navajo sedge | Carex specuicola J.T. Howell | CASP9 | Cyperaceae | |