| Preview | Issue Date | Title | Author(s) |
 | 20-May-2011 | Gamochaeta argyrinea G.L. Nesom | MEXU |
 | 20-May-2011 | Gnaphaliothamnus cryptocephalus G.L. Nesom | MEXU |
 | 20-May-2011 | Gnaphaliothamnus durangensis G.L. Nesom | MEXU |
 | 20-May-2011 | Gnaphaliothamnus macdonaldii G.L. Nesom | MEXU |
 | 20-May-2011 | Gnaphalium altamiranum Greenm. | MEXU |
 | 20-May-2011 | Gnaphalium altamiranum Greenm. | MEXU |
 | 20-May-2011 | Gnaphalium attenuatum var. sylvicola DC. | MEXU |
 | 20-May-2011 | Gnaphalium attenuatum var. sylvicola DC. | MEXU |
 | 20-May-2011 | Gnaphalium chartaceum Greenm. | MEXU |
 | 20-May-2011 | Gnaphalium crenatum Greenm. | MEXU |
 | 20-May-2011 | Gnaphalium hintoniorum G.L. Nesom | MEXU |
 | 20-May-2011 | Gnaphalium hintoniorum G.L. Nesom | MEXU |
 | 20-May-2011 | Gnaphalium jaliscense Greenm. | MEXU |
 | 20-May-2011 | Gnaphalium jaliscense Greenm. | MEXU |
 | 20-May-2011 | Gnaphalium jaliscense Greenm. | MEXU |
 | 20-May-2011 | Gnaphalium linearifolium Greenm. | MEXU |
 | 20-May-2011 | Gnaphalium oaxacanum Greenm. | MEXU |
 | 20-May-2011 | Gnaphalium oblanceolatum Greenm. | MEXU |
 | 20-May-2011 | Gnaphalium oxyphyllum var. nataliae DC. | MEXU |
 | 20-May-2011 | Gnaphalium pannosum Gand. | MEXU |
 | 20-May-2011 | Gnaphalium pringlei A. Gray | MEXU |
 | 20-May-2011 | Gnaphalium rosaceum I.M. Johnst. | MEXU |
 | 20-May-2011 | Gnaphalium sarmentosum Klatt | MEXU |
 | 20-May-2011 | Gnaphalium sarmentosum Klatt | MEXU |
 | 20-May-2011 | Gnaphalium stagnale I.M. Johnst. | MEXU |
 | 20-May-2011 | Gnaphalium stagnale I.M. Johnst. | MEXU |
 | 20-May-2011 | Gnaphalium stagnale I.M. Johnst. | MEXU |
 | 20-May-2011 | Gnaphalium stagnale I.M. Johnst. | MEXU |
 | 20-May-2011 | Grindelia glandulosa Greenm. | MEXU |
 | 20-May-2011 | Grindelia microcephala var. montana DC. | MEXU |
 | 20-May-2011 | Grindelia palmeri Steyerm. | MEXU |
 | 20-May-2011 | Grindelia squarrosa var. hirtella (Pursh) Dunal | MEXU |
 | 20-May-2011 | Grindelia turneri G.L. Nesom | MEXU |
 | 20-May-2011 | Grindelia villarrealii G.L. Nesom | MEXU |
 | 20-May-2011 | Guardiola carinata B.L. Rob. | MEXU |
 | 20-May-2011 | Guardiola rotundifolia B.L. Rob. | MEXU |
 | 20-May-2011 | Guardiola tulocarpus var. arguta A. Gray | MEXU |
 | 20-May-2011 | Gutierrezia argyrocarpa Greenm. | MEXU |
 | 20-May-2011 | Gutierrezia argyrocarpa Greenm. | MEXU |
 | 20-May-2011 | Gutierrezia argyrocarpa Greenm. | MEXU |
 | 20-May-2011 | Gymnocoronis matudae R.M. King y H. Rob. | MEXU |
 | 20-May-2011 | Gymnolomia canescens B.L. Rob. | MEXU |
 | 20-May-2011 | Gymnolomia canescens B.L. Rob. | MEXU |
 | 20-May-2011 | Gymnolomia decumbens B.L. Rob. | MEXU |
 | 20-May-2011 | Gymnolomia decumbens B.L. Rob. | MEXU |
 | 20-May-2011 | Gymnolomia decumbens B.L. Rob. | MEXU |
 | 20-May-2011 | Gymnolomia hypochlora Blake | MEXU |
 | 20-May-2011 | Gymnolomia hypochlora Blake | MEXU |
 | 20-May-2011 | Gymnolomia patens var. abbreviata A. Gray | MEXU |
 | 20-May-2011 | Gymnolomia patens var. abbreviata A. Gray | MEXU |
 | 20-May-2011 | Gymnolomia rudis var. minor A. Gray | MEXU |
 | 20-May-2011 | Gymnolomia rudis var. minor A. Gray | MEXU |
 | 20-May-2011 | Gymnolomia tripartita B.L. Rob. y Greenm. | MEXU |
 | 20-May-2011 | Haplopappus arborescens subsp. peninsularis (A. Gray) H.M. Hall | MEXU |
 | 20-May-2011 | Haplopappus juarezensis Moran | MEXU |
 | 20-May-2011 | Haplopappus niveus S. Watson | MEXU |
 | 20-May-2011 | Haplopappus phyllocephalus subsp. primitivus DC. | MEXU |
 | 20-May-2011 | Haplopappus phyllocephalus subsp. primitivus DC. | MEXU |
 | 20-May-2011 | Haplopappus pulvinatus Moran | MEXU |
 | 20-May-2011 | Haplopappus rosaricus Moran | MEXU |
 | 20-May-2011 | Haplopappus thiniicola Rzed. y C. Ezcurra | MEXU |
 | 20-May-2011 | Hebeclinium knappii R. M. King y H. Robinson | MEXU |
 | 20-May-2011 | Heliopsis filifolia S. Watson | MEXU |
 | 20-May-2011 | Heliopsis rubra T.R. Fisher | MEXU |
 | 20-May-2011 | Heterotheca gypsophila B.L. Turner | MEXU |
 | 20-May-2011 | Heterotheca mucronata V.L. Harms | MEXU |
 | 20-May-2011 | Hofmeisteria sinaloensis Howard S. Gentry | MEXU |
 | 20-May-2011 | Hofmeisteria sinaloensis Howard S. Gentry | MEXU |
 | 20-May-2011 | Idiopappus quitensis H. Rob. y Panero | MEXU |
 | 20-May-2011 | Iostephane heterophylla var. acutiloba (Cav.) Benth. | MEXU |
 | 20-May-2011 | Iostephane papposa J.J. Fay | MEXU |
 | 20-May-2011 | Isocoma gypsophilia B.L. Turner | MEXU |
 | 20-May-2011 | Isocoma tomentosa G.L. Nesom | MEXU |
 | 20-May-2011 | Jaegeria discoidea Klatt | MEXU |
 | 20-May-2011 | Jaegeria glabra var. australis (S. Wats.) B.L. Rob. | MEXU |
 | 20-May-2011 | Jaegeria glabra var. nana (S. Wats.) B.L. Rob. | MEXU |
 | 20-May-2011 | Jaegeria purpurascens B.L. Rob. | MEXU |
 | 20-May-2011 | Jaliscoa pringlei B.L. Rob. y Seaton | MEXU |
 | 20-May-2011 | Keerlia mexicana A. Gray | MEXU |
 | 20-May-2011 | Kuhnia microphylla Shinners | MEXU |
 | 20-May-2011 | Kuhnia oreithales B.L. Rob. | MEXU |
 | 20-May-2011 | Kuhnia rosmarinifolia var. gracillima Vent. | MEXU |
 | 20-May-2011 | Kuhnia rosmarinifolia var. gracillima Vent. | MEXU |
 | 20-May-2011 | Kyrstenia rufa Greene | MEXU |
 | 20-May-2011 | Kyrstenia rufa Greene | MEXU |
 | 20-May-2011 | Kyrsteniopsis chiapasana B.L. Turner | MEXU |
 | 20-May-2011 | Kyrsteniopsis chiapasana B.L. Turner | MEXU |
 | 20-May-2011 | Laennecia pimana G.L. Nesom y Laferriere | MEXU |
 | 20-May-2011 | Laennecia spellenbergii G.L. Nesom | MEXU |
 | 20-May-2011 | Laennecia spellenbergii G.L. Nesom | MEXU |
 | 20-May-2011 | Lagascea aurea Stuessy | MEXU |
 | 20-May-2011 | Lagascea helianthifolia var. adenocaulis Kunth | MEXU |
 | 20-May-2011 | Lepachys mexicana S. Watson | MEXU |
 | 20-May-2011 | Machaeranthera baconii B.L. Turner | MEXU |
 | 20-May-2011 | Machaeranthera crutchfieldii B.L. Turner | MEXU |
 | 20-May-2011 | Machaeranthera gypsophila B.L. Turner | MEXU |
 | 20-May-2011 | Machaeranthera gypsophila B.L. Turner | MEXU |
 | 20-May-2011 | Machaeranthera odysseus G.L. Nesom | MEXU |
 | 20-May-2011 | Machaeranthera pruinosa Greene | MEXU |
 | 20-May-2011 | Melampodium appendiculatum var. leiocarpum B.L. Rob. | MEXU |
 | 20-May-2011 | Melampodium bibracteatum S. Watson | MEXU |
 | 20-May-2011 | Melampodium glabrum S. Watson | MEXU |
 | 20-May-2011 | Melampodium glabrum S. Watson | MEXU |
 | 20-May-2011 | Melampodium mayfieldii B.L. Turner | MEXU |
 | 20-May-2011 | Melampodium montanum var. viridulum Benth. | MEXU |
 | 20-May-2011 | Melampodium montanum var. viridulum Benth. | MEXU |
 | 20-May-2011 | Melampodium montanum var. viridulum Benth. | MEXU |
 | 20-May-2011 | Melampodium northingtonii B.L. Turner | MEXU |
 | 20-May-2011 | Melampodium pilosum Stuessy | MEXU |
 | 20-May-2011 | Melampodium pringlei B.L. Rob. | MEXU |
 | 20-May-2011 | Melampodium rosei var. subintegrum B.L. Rob. | MEXU |
 | 20-May-2011 | Melampodium sericeum var. longipes Lag. | MEXU |
 | 20-May-2011 | Melampodium strigosum Stuessy | MEXU |
 | 20-May-2011 | Melampodium strigosum Stuessy | MEXU |
 | 20-May-2011 | Melampodium strigosum Stuessy | MEXU |
 | 20-May-2011 | Melampodium strigosum Stuessy | MEXU |
 | 20-May-2011 | Mexianthus mexicanus B.L. Rob. | MEXU |
 | 20-May-2011 | Mexianthus mexicanus B.L. Rob. | MEXU |
 | 20-May-2011 | Mikania antioquiensis var. subcuneata Hieron. | MEXU |
 | 20-May-2011 | Mikania gonzalezii B.L. Rob. y Greenm. | MEXU |
 | 20-May-2011 | Mikania tehuacanensis W.C. Holmes | MEXU |
 | 20-May-2011 | Milleria perfoliata B.L. Turner | MEXU |
 | 20-May-2011 | Montanoa andersonii McVaugh | MEXU |
 | 20-May-2011 | Montanoa gentryi S.F. Blake | MEXU |
 | 20-May-2011 | Montanoa gigas Rzed. | MEXU |
 | 20-May-2011 | Montanoa gigas Rzed. | MEXU |
 | 20-May-2011 | Montanoa imbricata V.A. Funk | MEXU |
 | 20-May-2011 | Montanoa laskowskii McVaugh | MEXU |
 | 20-May-2011 | Montanoa macrolepis B.L. Rob. y Greenm. | MEXU |
 | 20-May-2011 | Montanoa macrolepis B.L. Rob. y Greenm. | MEXU |
 | 20-May-2011 | Montanoa patens A. Gray | MEXU |
 | 20-May-2011 | Montanoa purpurascens B.L. Rob. y Greenm. | MEXU |
 | 20-May-2011 | Montanoa revealii H. Rob. | MEXU |
 | 20-May-2011 | Montanoa rosei B.L. Rob. y Greenm. | MEXU |
 | 20-May-2011 | Montanoa standleyi V.A. Funk | MEXU |
 | 20-May-2011 | Montanoa subtruncata A. Gray ex S. Wats. | MEXU |
 | 20-May-2011 | Montanoa tehuacana B.L. Rob. | MEXU |
 | 20-May-2011 | Montanoa tehuacana B.L. Rob. | MEXU |
 | 20-May-2011 | Montanoa tehuacana B.L. Rob. | MEXU |
 | 20-May-2011 | Neomirandea chiapensis King y B. L. Rob. | MEXU |
 | 20-May-2011 | Nocca pringlei B.L. Rob. | MEXU |
 | 20-May-2011 | Nocca pringlei B.L. Rob. | MEXU |
 | 20-May-2011 | Nocca pteropoda S.F. Blake | MEXU |
 | 20-May-2011 | Nocca pteropoda S.F. Blake | MEXU |
 | 20-May-2011 | Oaxacania malvifolia B.L. Rob. y Greenm. | MEXU |
 | 20-May-2011 | Oligonema heterophylla S. Watson | MEXU |
 | 20-May-2011 | Oligonema heterophylla S. Watson | MEXU |
 | 20-May-2011 | Oritrophium durangense G.L. Nesom | MEXU |
 | 20-May-2011 | Oritrophium orizabense G.L. Nesom | MEXU |
 | 20-May-2011 | Oxylobus macrocephalus Paray | MEXU |
 | 20-May-2011 | Oxylobus preecei B.L. Turner | MEXU |
 | 20-May-2011 | Oxylobus preecei B.L. Turner | MEXU |
 | 20-May-2011 | Parthenice mollis var. peninsularis A. Gray | MEXU |
 | 20-May-2011 | Parthenium arctium Bartlett | MEXU |
 | 20-May-2011 | Parthenium rollinsianum Rzed. | MEXU |
 | 20-May-2011 | Philactis fayi Torres | MEXU |
 | 20-May-2011 | Piptothrix aegiroides B.L. Rob. | MEXU |
 | 20-May-2011 | Piptothrix aegiroides B.L. Rob. | MEXU |
 | 20-May-2011 | Piptothrix aegiroides B.L. Rob. | MEXU |
 | 20-May-2011 | Piptothrix jaliscensis B.L. Rob. | MEXU |
 | 20-May-2011 | Piptothrix jaliscensis B.L. Rob. | MEXU |
 | 20-May-2011 | Piptothrix jaliscensis B.L. Rob. | MEXU |
 | 20-May-2011 | Piptothrix paleacea Cronquist | MEXU |
 | 20-May-2011 | Piptothrix pubens A. Gray | MEXU |
 | 20-May-2011 | Piqueria laxiflora B.L. Rob. y Seaton | MEXU |
 | 20-May-2011 | Piqueria pringlei S. Watson | MEXU |
 | 20-May-2011 | Piqueria pyramidalis B.L. Rob. | MEXU |
 | 20-May-2011 | Piqueria serrata var. angustifolia A. Gray | MEXU |
 | 20-May-2011 | Piqueriopsis michoacana R.M. King | MEXU |
 | 20-May-2011 | Pluchea rosea var. mexicana R.K. Godfrey | MEXU |
 | 20-May-2011 | Pluchea rosea var. mexicana R.K. Godfrey | MEXU |
 | 20-May-2011 | Pluchea yucatanensis G.L. Nesom | MEXU |
 | 20-May-2011 | Rumfordia alcortae Rzed. | MEXU |
 | 20-May-2011 | Rumfordia attenuata B.L. Rob. | MEXU |
 | 20-May-2011 | Rumfordia exauriculata B.L. Turner | MEXU |
 | 20-May-2011 | Rumfordia floribunda f. pubescens DC. | MEXU |
 | 20-May-2011 | Rumfordia media S.F. Blake | MEXU |
 | 20-May-2011 | Rumfordia revealii H. Rob. | MEXU |
 | 20-May-2011 | Sabazia anomala Greenm. | MEXU |
 | 20-May-2011 | Sabazia anomala Greenm. | MEXU |
 | 20-May-2011 | Sabazia anomala Greenm. | MEXU |
 | 20-May-2011 | Sabazia anomala Greenm. | MEXU |
 | 20-May-2011 | Sabazia breedlovei B.L. Turner | MEXU |
 | 20-May-2011 | Sabazia brevilingulata B.L. Turner | MEXU |
 | 20-May-2011 | Sabazia glabra S. Watson | MEXU |
 | 20-May-2011 | Sabazia liebmannii var. hintonii Klatt | MEXU |
 | 20-May-2011 | Sabazia macdonaldii B.L. Turner | MEXU |
 | 20-May-2011 | Sabazia michoacana B.L. Rob. | MEXU |
 | 20-May-2011 | Sabazia radicans S.F. Blake | MEXU |
 | 20-May-2011 | Sabazia radicans S.F. Blake | MEXU |
 | 20-May-2011 | Sabazia subnuda B.L. Rob. y Seaton | MEXU |
 | 20-May-2011 | Sabazia subnuda B.L. Rob. y Seaton | MEXU |
 | 20-May-2011 | Sabazia tridacoides var. latifolia Urbatsch y Turner | MEXU |
 | 20-May-2011 | Sabazia tridacoides var. latifolia Urbatsch y Turner | MEXU |
 | 20-May-2011 | Sanvitalia tenuis S. Watson | MEXU |
 | 20-May-2011 | Schkuhria pringlei S. Watson | MEXU |
 | 20-May-2011 | Sclerocarpus frutescens Brandegee | MEXU |
 | 20-May-2011 | Sclerocarpus schiedeanus var. elongatus Benth. | MEXU |
 | 20-May-2011 | Sclerocarpus schiedeanus var. elongatus Benth. | MEXU |
 | 20-May-2011 | Sclerocarpus schiedeanus var. elongatus Benth. | MEXU |
 | 20-May-2011 | Sclerocarpus spathulatus Rose | MEXU |
 | 20-May-2011 | Sigesbeckia pringlei D.L. Schulz | MEXU |
 | 20-May-2011 | Sigesbeckia repens B.L. Rob. y Greenm. | MEXU |
 | 20-May-2011 | Sigesbeckia repens B.L. Rob. y Greenm. | MEXU |
 | 20-May-2011 | Solidago ericamerioides G.L. Nesom | MEXU |
 | 20-May-2011 | Solidago hintoniorum G.L. Nesom | MEXU |
 | 20-May-2011 | Solidago juliae G.L. Nesom | MEXU |
 | 20-May-2011 | Solidago muelleri Standl. | MEXU |
 | 20-May-2011 | Solidago pringlei Fernald | MEXU |
 | 20-May-2011 | Stevia alatipes B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia alatipes B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia alatipes B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia alatipes B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia amblyolepis var. umbratilis (B.L. Rob.) B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia amblyolepis var. umbratilis (B.L. Rob.) B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia aschenborniana var. occidentalis Sch. Bip. | MEXU |
 | 20-May-2011 | Stevia aschenborniana var. occidentalis Sch. Bip. | MEXU |
 | 20-May-2011 | Stevia berlandieri var. anadenotricha A. Gray | MEXU |
 | 20-May-2011 | Stevia calzadana B.L. Turner | MEXU |
 | 20-May-2011 | Stevia calzadana B.L. Turner | MEXU |
 | 20-May-2011 | Stevia chiapensis Grashoff | MEXU |
 | 20-May-2011 | Stevia clinopodioides Greenm. | MEXU |
 | 20-May-2011 | Stevia clinopodioides Greenm. | MEXU |
 | 20-May-2011 | Stevia coahuilensis Soejima y Yahara | MEXU |
 | 20-May-2011 | Stevia collodes Greenm. | MEXU |
 | 20-May-2011 | Stevia collodes Greenm. | MEXU |
 | 20-May-2011 | Stevia crassifolia Soejima y Yahara | MEXU |
 | 20-May-2011 | Stevia decumbens (Robins y Greenm.) Greene | MEXU |
 | 20-May-2011 | Stevia deltoidea Greene | MEXU |
 | 20-May-2011 | Stevia deltoidea Greene | MEXU |
 | 20-May-2011 | Stevia diffusa Greenm. | MEXU |
 | 20-May-2011 | Stevia diffusa Greenm. | MEXU |
 | 20-May-2011 | Stevia diffusa Greenm. | MEXU |
 | 20-May-2011 | Stevia ecatepecana Soejima, Yahara y K. Watan. | MEXU |
 | 20-May-2011 | Stevia elatior var. decumbens Kunth | MEXU |
 | 20-May-2011 | Stevia ephemera Grashoff | MEXU |
 | 20-May-2011 | Stevia filodecaballoana Soejima, Yahara y K. Watan. | MEXU |
 | 20-May-2011 | Stevia filodecaballoana Soejima, Yahara y K. Watan. | MEXU |
 | 20-May-2011 | Stevia filodecaballoana Soejima, Yahara y K. Watan. | MEXU |
 | 20-May-2011 | Stevia hypomalaca B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia hypomalaca B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia hypomalaca B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia hypomalaca B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia iltisiana Grashoff | MEXU |
 | 20-May-2011 | Stevia isomeca Grashoff | MEXU |
 | 20-May-2011 | Stevia jaliscensis B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia laxa B.L. Rob. y Seaton | MEXU |
 | 20-May-2011 | Stevia linoides var. grisea Sch. Bip. | MEXU |
 | 20-May-2011 | Stevia lozanoi B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia lozanoi B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia macvaughii Grashoff | MEXU |
 | 20-May-2011 | Stevia madrensis A. Gray | MEXU |
 | 20-May-2011 | Stevia mascotensis Soejima y Yahara | MEXU |
 | 20-May-2011 | Stevia monardifolia var. macrophylla Kunth | MEXU |
 | 20-May-2011 | Stevia monardifolia var. macrophylla Kunth | MEXU |
 | 20-May-2011 | Stevia monardifolia var. macrophylla Kunth | MEXU |
 | 20-May-2011 | Stevia myricoides McVaugh | MEXU |
 | 20-May-2011 | Stevia oaxacana Soejima y Yahara | MEXU |
 | 20-May-2011 | Stevia oligophylla Soejima y Yahara | MEXU |
 | 20-May-2011 | Stevia palmeri A. Gray | MEXU |
 | 20-May-2011 | Stevia plummerae var. durangensis A. Gray | MEXU |
 | 20-May-2011 | Stevia polycephala var. oaxacensis Bertol. | MEXU |
 | 20-May-2011 | Stevia potosina Soejima, Yahara y K. Watan. | MEXU |
 | 20-May-2011 | Stevia pratheri B.L. Turner | MEXU |
 | 20-May-2011 | Stevia pringlei S. Watson | MEXU |
 | 20-May-2011 | Stevia reticulata Grashoff | MEXU |
 | 20-May-2011 | Stevia rosei B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia rosei B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia rotundifolia Soejima, Yahara y K. Watan. | MEXU |
 | 20-May-2011 | Stevia salicifolia var. anathera Cav. | MEXU |
 | 20-May-2011 | Stevia scabrelloides Soejima y Yahara | MEXU |
 | 20-May-2011 | Stevia scabrelloides Soejima y Yahara | MEXU |
 | 20-May-2011 | Stevia scabridula B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia serrata var. ovalis Cav. | MEXU |
 | 20-May-2011 | Stevia serrata var. ovalis Cav. | MEXU |
 | 20-May-2011 | Stevia simulans B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia simulans B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia talpensis Grashoff | MEXU |
 | 20-May-2011 | Stevia tephra B.L. Rob. | MEXU |
 | 20-May-2011 | Stevia urceolata Grashoff | MEXU |
 | 20-May-2011 | Stevia venosa A. Gray | MEXU |
 | 20-May-2011 | Stevia viejoana Soejima, Yahara y K. Watan. | MEXU |
 | 20-May-2011 | Stevia viejoana Soejima, Yahara y K. Watan. | MEXU |
 | 20-May-2011 | Stevia viejoana Soejima, Yahara y K. Watan. | MEXU |
 | 20-May-2011 | Stevia villaregalis McVaugh | MEXU |
 | 20-May-2011 | Stevia villaregalis McVaugh | MEXU |
 | 20-May-2011 | Stevia villaregalis McVaugh | MEXU |
 | 20-May-2011 | Stevia williamsii Standl. | MEXU |
 | 20-May-2011 | Stevia zacatecana McVaugh | MEXU |
 | 20-May-2011 | Stevia zephyrantha Grashoff | MEXU |
 | 20-May-2011 | Tehuana calzadae Panero y Villasenor | MEXU |
 | 20-May-2011 | Tehuana calzadae Panero y Villasenor | MEXU |
 | 20-May-2011 | Tragoceros mocinianus A. Gray | MEXU |
 | 20-May-2011 | Trigonospermum annuum McVaugh y Lask. | MEXU |
 | 20-May-2011 | Trigonospermum annuum McVaugh y Lask. | MEXU |
 | 20-May-2011 | Trigonospermum floribundum Greenm. | MEXU |
 | 20-May-2011 | Trigonospermum floribundum Greenm. | MEXU |
 | 20-May-2011 | Verbesina macdonaldii B.L. Turner | MEXU |
 | 20-May-2011 | Vernonia aristifera S.F. Blake | MEXU |
 | 20-May-2011 | Vernonia callilepis Gleason | MEXU |
 | 20-May-2011 | Vernonia chiriquiensis S.C. Keeley | MEXU |
 | 20-May-2011 | Vernonia conzattii B.L. Rob. | MEXU |
 | 20-May-2011 | Vernonia conzattii B.L. Rob. | MEXU |
 | 20-May-2011 | Vernonia conzattii B.L. Rob. | MEXU |
 | 20-May-2011 | Vernonia cordata var. hooveri Kunth. | MEXU |
 | 20-May-2011 | Vernonia cordata var. hooveri Kunth. | MEXU |
 | 20-May-2011 | Vernonia cordata var. hooveri Kunth. | MEXU |
 | 20-May-2011 | Vernonia cronquistii S.B. Jones | MEXU |
 | 20-May-2011 | Vernonia dictyophlebia Gleason | MEXU |
 | 20-May-2011 | Vernonia dictyophlebia Gleason | MEXU |
 | 20-May-2011 | Vernonia duncanii S.B. Jones | MEXU |
 | 20-May-2011 | Vernonia hintoniorum B.L. Turner | MEXU |
 | 20-May-2011 | Vernonia jonesii B.L. Turner | MEXU |
 | 20-May-2011 | Vernonia liatroides subsp. gentryi DC. | MEXU |
 | 20-May-2011 | Vernonia liatroides subsp. gentryi DC. | MEXU |
 | 20-May-2011 | Vernonia macphersonii S.B. Jones y Stutts | MEXU |
 | 20-May-2011 | Vernonia macvaughii S.B. Jones | MEXU |
 | 20-May-2011 | Vernonia obtusa subsp. parkeri (Gleason) S.F. Blake | MEXU |
 | 20-May-2011 | Vernonia pallens Sch. Bip. | MEXU |
 | 20-May-2011 | Vernonia palmeri (A. Gray) B.L. Rob. | MEXU |
 | 20-May-2011 | Vernonia polypleura S.F. Blake | MEXU |
 | 20-May-2011 | Vernonia pooleae B.L. Turner | MEXU |
 | 20-May-2011 | Vernonia pugana S.B. Jones y Stutts | MEXU |
 | 20-May-2011 | Vernonia schaffneri A. Gray | MEXU |
 | 20-May-2011 | Vernonia solorzanoana Rzed. y Calderon | MEXU |
 | 20-May-2011 | Vernonia tequilana S.B. Jones y Stutts | MEXU |
 | 20-May-2011 | Vernonia umbellifera Gleason | MEXU |
 | 20-May-2011 | Vernonia umbellifera Gleason | MEXU |
 | 20-May-2011 | Vernonia zaragozana B.L. Turner | MEXU |
 | 20-May-2011 | Viguiera quinqueradiata (Cav.) A. Gray ex S. Watson | MEXU |
 | 20-May-2011 | Wedelia cronquistii B.L. Turner | MEXU |
 | 20-May-2011 | Wedelia gonzaleziarum B.L. Turner | MEXU |
 | 20-May-2011 | Wedelia gonzaleziarum B.L. Turner | MEXU |
 | 20-May-2011 | Wedelia keilii B.L. Turner | MEXU |
 | 20-May-2011 | Wedelia talpana B.L. Turner | MEXU |
 | 20-May-2011 | Wedelia talpana B.L. Turner | MEXU |
 | 20-May-2011 | Wedelia tegetis Strother | MEXU |
 | 20-May-2011 | Wedelia tegetis Strother | MEXU |
 | 20-May-2011 | Wedelia vexata Strother | MEXU |
 | 20-May-2011 | Xanthocephalum durangense M.A. Lane | MEXU |
 | 20-May-2011 | Xanthocephalum gymnospermoides var. eradiatum (A. Gray) Benth. y Hook. f. | MEXU |
 | 20-May-2011 | Xanthocephalum gymnospermoides var. intermedium (A. Gray) Benth. y Hook. f. | MEXU |
 | 20-May-2011 | Xanthocephalum tomentellum B.L. Rob. | MEXU |
 | 20-May-2011 | Xanthocephalum tomentellum B.L. Rob. | MEXU |
 | 20-May-2011 | Zaluzania anthemidifolia B.L. Rob. y Greenm. | MEXU |
 | 20-May-2011 | Zaluzania delgadoana B.L. Turner | MEXU |
 | 20-May-2011 | Zaluzania megacephala var. coahuilensis Sch. Bip. | MEXU |
 | 20-May-2011 | Zaluzania megacephala var. coahuilensis Sch. Bip. | MEXU |
 | 20-May-2011 | Zaluzania megacephala var. coahuilensis Sch. Bip. | MEXU |
 | 20-May-2011 | Zaluzania megacephala var. coahuilensis Sch. Bip. | MEXU |
 | 20-May-2011 | Zaluzania megacephala var. coahuilensis Sch. Bip. | MEXU |
 | 20-May-2011 | Zaluzania megacephala var. coahuilensis Sch. Bip. | MEXU |
 | 20-May-2011 | Zaluzania pringlei Greenm. | MEXU |
 | 20-May-2011 | Zaluzania pringlei Greenm. | MEXU |
 | 20-May-2011 | Zaluzania resinosa S. Watson | MEXU |
 | 20-May-2011 | Zaluzania resinosa S. Watson | MEXU |
 | 20-May-2011 | Zaluzania subcordata W.M. Sharp | MEXU |
 | 20-May-2011 | Zinnia jugistyla Paul G. Wilson | MEXU |
 | 20-May-2011 | Zinnia marylandica D.M. Spooner, Stimart y T. Boyle | MEXU |
 | 20-May-2011 | Zinnia palmeri A. Gray | MEXU |
 | 20-May-2011 | Zinnia zamudiana Calderon y Rzed. | MEXU |
 | 20-May-2011 | Zinnia zamudiana Calderon y Rzed. | MEXU |
