Neotropis covers the area of all South America (excepting the southern edges that belongs to Antarctis) and in the north covers also the area of Mesoamerica including the islands in Caribbean. This floristic region has 35 endemic plant families. Neotropis has a strong developmental relationship to the African part of Paleotropis.
Neotropis could be classified into following sub-regions:
· Brazilian-Venezuelan
· Pampean
· Andean
· Caribbean
- ACMELLA OLERACEA (L.) R. K. Jansen – Brazilian Cress, Para Cress, Toothache Plant
- AECHMEA BRACTEATA (Sw.) Griseb.
- AECHMEA FASCIATA (Lindl.) Baker – Silver Vase, Urn Plant
- AECHMEA NUDICAULIS (L.) Griseb.
- AECHMEA ORLANDIANA L. B. Sm. – Finger-of-God
- AECHMEA PINELIANA (Brongn. ex Planch.) Baker
- ALISMA PLANTAGO-AQUATICA L. – Common Water-plantain
- ALLOISPERMUM INTEGRIFOLIUM (DC.) H. Rob.
- ALTERNANTHERA PHILOXEROIDES (Mart.) Griseb. – Alligator Weed
- AUSTROCYLINDROPUNTIA SUBULATA (Muehlenpf.) Backeb. – Long-spine Cactus, Eve’s Needle Cactus
- BEGONIA HERACLEIFOLIA Cham. et Schltdl. – Starleaf Begonia
- BEGONIA VEITCHII Hook. f. – Veitch’s Begonia
- BLUTAPARON VERMICULARE (L.) Mears – Silverweed, Saltweed, Samphire
- BOTRYCHIUM LUNARIA (L.) Schwartz – Common Moonwort
- BRASSIA VERRUCOSA Bateman ex Lindl. – Warty Brassia
- BROWNINGIA CANDELARIS (Meyen) Britton et Rose
- CAESALPINIA PULCHERRIMA (L.) Sw. – Poinciana, Peacock Flower, Red Bird of Paradise, Mexican Bird of Paradise, Dwarf Poinciana, Pride of Barbados, Flamboyan-de-jardin
- CAPSICUM LANCEOLATUM (Greenm.) C. V. Morton et Standl.
- CAREX AUREOLENSIS Steud. – Goldenfruit Sedge
- CEIBA PENTANDRA (L.) Gaertn. – Kapoktree, Silk Cottontree
- CENTROSEMA ANGUSTIFOLIUM (Kunth) Benth.
- CENTROSEMA PLUMIERI (Pers.) Benth. – Feefee
- CENTROSEMA SCHOTTII (Millsp.) K. Schum.
- CHUQUIRAGA SPINOSA Less.
- CORALLORHIZA MACULATA (Raf.) Raf. – Spotted Coralroot, Western Coralroot, Summer Coralroot
- CYPERUS ERAGROSTIS Lam. – Drain Flat Sedge, Pale Galingale, Umbrella Sedge
- DAHLIA IMPERIALIS Roezl ex Ortgies – Tree Dahlia
- DALBERGIA ECASTAPHYLLUM (L.) Taub. – Coinvine
- DALECHAMPIA SCHIPPII Standl.
- ECHINODORUS SUBALATUS (Mart. ex Schult. f.) Griseb.
- EPIDENDRUM NANEGALENSE Hágsater et Dodson
- ERYTHRINA CRISTA-GALLI L. – Cockspur Coral Tree
- GALINSOGA PARVIFLORA Cav. – Gallant Soldier, Potato Weed, Small Flowered Galinsoga
- GALINSOGA QUADRIRADIATA Ruiz et Pav. – Shaggy Soldier, Hairy Galinsoga, Fringed Quickweed
- GLANDULARIA BIPINNATIFIDA (Schauer) Nutt. – Southwestern Mock Vervain, Dakota Verbena
- GUZMANIA MONOSTACHIA (L.) Rusby ex Mez
- GUZMANIA SANGUINEA (André) André ex Mez
- HAEMATOXYLUM CAMPECHIANUM L. – Logwood
- HATIORA SALICORNIOIDES (Haw.) Britton et Rose – Bottle Cactus, Dancing-bones, Drunkard’s-dream, Spice Cactus
- HELIANTHUS ANNUUS L. – Common Annual Sunflower, Sunflower, Wild Sunflower
- HYLOCEREUS UNDATUS (Haw.) Britton et Rose – Belle-of-the-night, Nightblooming Cactus, Red Pitaya, Dragon Fruit
- IPOMOEA ALBA L. – Moonflower, Moon Vine, Tropical White Morning-glory
- IPOMOEA IMPERATI (Vahl) Griseb. – Beach Morning Glory
- IPOMOEA PES-CAPRAE (L.) R. Br. – Railroad Vine, Bayhops
- IPOMOEA QUAMOCLIT L. – Cypress Vine, Cardinal Creeper, Cardinal Vine, Star Glory, Hummingbird Vine, Cypressvine Morning Glory
- LIQUIDAMBAR STYRACIFLUA L. – Sweetgum, American Sweetgum, Hazel Pine, Bilsted, Red-gum, Satin Walnut, Star-leaved Gum, Alligator Wood
- LOPEZIA RACEMOSA Cav.
- LUPINUS WEBERBAUERI Ulbr. – Lupine
- MACROPTILIUM ATROPURPUREUM (DC.) Urb. – Purple-bean, Surple-bean
- MATELEA LASIOSTEMMA (Hemsl.) Shinners – Milkvine
- MERREMIA UMBELLATA (L.) Hallier f. – Hogvine
- MONOTROPA UNIFLORA L. – Indian-pipe, Ghost Plant, Corpse Plant
- MORELLA CERIFERA (L.) Small – Bayberry, Candleberry, Wax Myrtle
- NYMPHAEA AMPLA (Salisb.) DC. – Dotleaf Waterlily
- OPHIOGLOSSUM VULGATUM L. – English Adder’s-tongue, Southern Adder’s-tongue
- ORECTANTHE SCEPTRUM (Oliv.) Maguire
- OREOCALLIS GRANDIFLORA (Lam.) R. Br.
- ORTHOPHYTUM GURKENII Hutchison
- PARTHENIUM HYSTEROPHORUS L. – Bitterweed, Carrot-grass, Santa Maria Feverfew
- PASSIFLORA ORNITHOURA Mast.
- PASSIFLORA TRIFOLIATA Cav.
- PLANTAGO RIGIDA Kunth
- PLEOPELTIS POLYPODIOIDES (L.) E. G. Andrews et Windham – Resurrection Fern
- PLUCHEA CAROLINENSIS (Jacq.) G. Don – Cattletongue, Coughbush, Cure-for-all
- PONTEDERIA CORDATA L. – Pickerelweed
- PORTEA PETROPOLITANA (Wawra) Mez
- POSOQUERIA LATIFOLIA (Rudge) Schult. – Needle Flower Tree
- PROSTHECHEA COCHLEATA (L.) W. E. Higgins – Cockleshell Orchid, Clamshell Orchid, Black Orchid
- PROSTHECHEA OCHRACEA (Lindl.) W. E. Higgins
- PUYA RAIMONDII Harms – Queen of the Andes, Queen of the Puna
- RHIPSALIS CEREUSCULA Haw. – Mistletoe Cactus, Coral Cactus
- RHIPSALIS MESEMBRYANTHEMOIDES Haw.
- RUMOHRA ADIANTIFORMIS (G. Forst.) Ching – Leather Fern, Leatherleaf Fern
- SAGITTARIA LATIFOLIA Willd. – Wapato, Common Arrowhead, Duck-potato, Broadleaf Arrowhead, Indian Potato
- SALVIA COCCINEA Buc’hoz ex Etl. – Scarlet Sage, Texas Sage, Tropical Sage, Blood Sage, Hummingbird Sage
- SALVINIA MINIMA Baker – Common Salvinia, Water Spangles, Floating Fern
- SCHIZOLOBIUM PARAHYBA (Vell.) S. F. Blake – Brazilian Firetree, Quamwood
- SELENICEREUS ANTHONYANUS (Alexander) D. R. Hunt – Fish Bone Cactus, Rick Rack Cactus, Zig-zag Cactus, St. Anthony’s Rik-Rak
- SESBANIA PUNICEA (Cav.) Benth. – Rattlebox, Spanish Gold, Purple Sesban, Red Sesbania, Scarlet Wisteria, Rattlebrush
- SESUVIUM PORTULACASTRUM (L.) L. – Seaside Purslane, Shoreline Purslane, Sea Purslane
- STEGOLEPIS GUIANENSIS Klotzsch ex Körn.
- SYMPHYOTRICHUM LAEVE (L.) Á. Löve et D. Löve – Smooth Aster, Glaucus Aster
- TILLANDSIA CAPUT-MEDUSAE E. Morren – Medusa’s Head, Octopus Plant
- TILLANDSIA COMPRESSA Bertero ex Schult. et Schult. f.
- TILLANDSIA FASCICULATA Sw. – Giant Air Plant
- TILLANDSIA USNEOIDES (L.) L. – Spanish Moss, Long Moss, Black Moss, Old Man’s Beard
- TRADESCANTIA SPATHACEA Sw. – Moses-in-the-cradle, Boat-lily, Oysterplant
- WALTHERIA INDICA L. – Uhaloa, Boaterbush, Sleepy-morning, Buff-coat
- WERNERIA NUBIGENA Kunth