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- +Crataegomespilus asnieresii
- +Crataegomespilus dardarii f. asnieresii
- +Crataegomespilus grandiflora
- +Pyrocydonia winkleri
- -foliate
- -foliolate
- -merous
- -stan
- .Phleum
- .Phoenix pumila
- .Pinus edulis
- . Caladium houlletii
- 11th century
- 1567
- 1576
- 1600s
- 1676
- 16th century
- 1721
- 1724
- 1782
- 1797
- 17th century
- 1800s
- 1807
- 1829
- 1833
- 1834
- 1850
- 1853
- 1868
- 1875
- 1888
- 18th century
- 1914
- 1924
- 1926
- 1939
- 1970
- 1970s
- 1973
- 1980s
- 1981
- 1987 in literature
- 1991
- 1992
- 1996
- 19th century
- 2000
- 2001
- 2002
- 2003
- 2004
- 2005
- 2006
- 2007
- 2007 Cricket World Cup
- 202 BC
- 20 August
- 20th century
- 21 August
- 220 AD
- 221 BC
- 22 August
- 23 August
- 2400 B.C.
- 300 B.C.
- 481 BC
- 613 mitzvot
- 77
- A'e
- A'kub
- A.A.Eaton
- A.Bassi
- A. P. de Candolle
- ALS
- APG II system
- APG system
- A er tai da huang
- A la bo po po na
- A li shan e er li
- Aa (plant)
- Aak
- Aandblom
- Aarbei koejawel
- Aaron's-beard
- Aaron's-beard prickly-pear
- Aaron's-rod
- Aaron's beard
- Aaron's rod
- Aarons.
- Aarons beard
- Aartappelranker
- Abaca
- Abacate
- Abacaxi
- Abacaxi-do-mato
- Abaracaatinga
- Abarema bigemina
- Abarema elliptica
- Abarema grandiflora
- Abata cola
- Abatia
- Abay
- Abbevillea fenzliana
- Abbevillea guaviroba
- Abbevillea maschalantha
- Abdominal distention
- Abdominea
- Abe-maki
- Abele
- Abelia
- Abelia 'Edward Goucher'
- Abelia Edward Goucher
- Abelia X grandiflora
- Abelia aitchinsonii
- Abelia biflora
- Abelia buddleioides
- Abelia chinensis
- Abelia coriacea
- Abelia corymbosa
- Abelia curviflora
- Abelia davidii
- Abelia dielsii
- Abelia engleriana
- Abelia fargesii
- Abelia floribunda
- Abelia forrestii
- Abelia graebneriana
- Abelia grandiflora
- Abelia integrifolia
- Abelia ionostachya
- Abelia macrotera
- Abelia mexicana
- Abelia mosanensis
- Abelia occidentalis
- Abelia parvifolia
- Abelia rupestris
- Abelia schumannii
- Abelia serrata
- Abelia shikokiana
- Abelia spathulata
- Abelia speciosa
- Abelia taihyonii
- Abelia tomentosa
- Abelia triflora
- Abelia umbellata
- Abelia uniflora
- Abelia x grandiflora
- Abelia zanderi
- Abelia × grandiflora
- Abeliophyllum
- Abeliophyllum distichum
- Abelmoschus
- Abelmoschus esculentus
- Abelmoschus manihot
- Abelmoschus manihot subsp. manihot
- Abelmoschus mindanaensis
- Abelmoschus moschatus
- Abelmoschus moschatus subsp. moschatus
- Abelmoschus pungens
- Abelmoschus sagittifolius
- Abenallilla
- Abenier juane
- Aberia
- Aberia caffra
- Aberia gardneri
- Aberia macrocalyx
- Aberia tristis
- Aberrant
- Abert's wild buckwheat
- Abessinischer Kohl
- Abete argentato
- Abete bianco
- Abeto-espanhol
- Abeto blanco
- Abeto de Sachalin
- Abey
- Abies
- Abies alba
- Abies alba f. pendula
- Abies alba f. pyramidalis
- Abies albertiana
- Abies alcoquiana
- Abies amabilis
- Abies arizonica
- Abies baborensis
- Abies balsamea
- Abies balsamea f. nana
- Abies balsamea f. phanerolepis
- Abies balsamea var. phanerolepis
- Abies beissneriana
- Abies bicolor
- Abies bifida
- Abies bornmuelleriana
- Abies brachyphylla
- Abies brachytyla
- Abies bracteata
- Abies canadensis
- Abies canadensis var. gracilis
- Abies cephalonica
- Abies chensiensis var. ernestii
- Abies chinensis
- Abies cilicica
- Abies concolor
- Abies concolor f. violacea
- Abies concolor f. wattezii
- Abies concolor var. lowiana
- Abies delavayi
- Abies delavayi var. fabri
- Abies diversifolia
- Abies equi-trojani
- Abies ernestii
- Abies excelsa var. columnaris
- Abies excelsa var. finedonensis
- Abies excelsa var. gregoryana
- Abies excelsa var. inversa
- Abies excelsa var. pygmaea
- Abies excelsa var. virgata
- Abies fargesii
- Abies fargesii var. faxoniana
- Abies faxoniana
- Abies firma
- Abies forrestii
- Abies fraseri
- Abies georgei
- Abies glehnii
- Abies gmelinii
- Abies grandis
- Abies griffithiana
- Abies guatemalensis var. jaliscana
- Abies heterophylla
- Abies homolepis
- Abies homolepis var. umbellata
- Abies hookeriana
- Abies jezoensis
- Abies kamtschatica
- Abies koreana
- Abies lasiocarpa
- Abies leptolepis
- Abies likiangensis
- Abies macrocarpa
- Abies magnifica
- Abies magnifica var. shastensis
- Abies mariana
- Abies mariesii var. kawakamii
- Abies marocana
- Abies menziesii
- Abies mertensiana
- Abies mexicana
- Abies mucronata
- Abies nobilis
- Abies nobilis var. prostrata
- Abies nobilis var. robusta
- Abies nobilis var. robustifolia
- Abies nordmanniana
- Abies nordmanniana f. aurea
- Abies nordmanniana subsp. bornmuelleriana
- Abies numidica
- Abies pattoniana
- Abies pectinata
- Abies pectinata var. equi-trojani
- Abies pectinata var. nebrodensis
- Abies picea
- Abies pindrow
- Abies pinsapo
- Abies pinsapo var. baborensis
- Abies polita
- Abies procera
- Abies procera f. prostrata
- Abies recurvata
- Abies religiosa
- Abies sachalinensis var. nemorensis
- Abies semenovii
- Abies sibirica var. nephrolepis
- Abies sikokiana
- Abies spinulosa
- Abies squamata
- Abies sutchuenensis
- Abies taxifolia
- Abies torano
- Abies veitchii
- Abies veitchii var. olivacea
- Abies veitchii var. sachalinensis
- Abies vejarii
- Abies venusta
- Abies webbiana
- Abies x phanerolepis
- Abies yunnanensis
- Abietineae
- Abing-abing
- Abisin
- Abiu
- Abiufi
- Abobora-chila
- Abobora-d'agua
- Abobora-moranga
- Abobora-rasteira
- Abobra
- Abokado
- Abortive
- Abortopetalum sandwicense
- Aboudikro
- Abraham-Isaac-Jacob
- Abrasin
- Abrasin-oil-tree
- Abre-o-sol
- Abrepunos
- Abrico
- Abrico-de-Sao-Domingos
- Abrico-do-Para
- Abrico-selvagem
- Abricoteiro
- Abricotier
- Abricotier d'Afrique
- Abricotier d'Amerique
- Abricotier des Antilles
- Abricotier du Japon
- Abricotier japonais
- Abridor
- Abrojo
- Abrojo de agua
- Abrojos
- Abroma
- Abroma augusta
- Abroma fastuosa
- Abroma fastuosum
- Abroma mariae
- Abroma sinuosa
- Abromeitiella
- Abromeitiella brevifolia
- Abromeitiella chlorantha
- Abronia
- Abronia (plant)
- Abronia alpina
- Abronia ameliae
- Abronia ammophila
- Abronia angustifolia
- Abronia argillosa
- Abronia bigelovii
- Abronia bolackii
- Abronia breviflora
- Abronia carletonii
- Abronia carnea
- Abronia crux-maltae