This key is a complement to that published by the Smithsonian Institute, Begoniaceae Edition 1, 1984, and Begoniaceae Edition 2, 2002. It utilizes the same mainkey and subkey structure as in the earlier publication, with many of the couplets being the same. Some minor word changes have been made to clarify the leads. Two major additions in this Pictorial Begonia Key are the separation between species (1) by continent of origin and (2) by alphabetical listings. These simplifications are possible because of the much smaller number of species involved.	The Pictorial Begonia Key covers over 300 begonia species; those which are currently being grown by ABS members. Of these, we now have good digital color pictures of over half of these. These photos show the plants and details of the leaves and flowers. The other species will be photographed with time.
Click the word "Plant", "Leaf", or "Flower" to see selected pictures. Click "Subkey" to see all available pictures of a species.

Links to all Key pages Main Key Subkey 2-3 Subkey 4 Subkey 5 Subkey 6 Subkey 7-12 Subkey 14 Subkey 15-21 Subkey 22-24 Subkey 25 Subkey 26 Subkey 27-28 Subkey 29-30 Subkey 31-32 Subkey 33-34

African Species cavallyensis Plant , Leaf , , Subkey 15-21 [ 15;4-2a] coursii Plant , Leaf , , Subkey 15-21 [ 16;52-2a] crassipes (is longipetiolata) Plant , Leaf , Flower , Subkey 14 [ 14;24-2 ] dregei Plant , , , Subkey 5 [ 28;90-1 33;3-1 33;11-2 33;25-1 ] dregei Glasgow Plant , Leaf , Flower , Subkey 5 [ ] ebolowensis Plant , , , Subkey 15-21 [ 14;78-2b 18;3-1 ] eminii Plant , Leaf , Flower , Subkey 14 [ 14;30-1 ] gracilipetiolata (is longipetiolata) . Plant , Leaf , , Subkey 14 [ 14;21-1 ] johnstonii , Leaf , Flower , Subkey 33-34 [ 34;54-2 ] komoensis Plant , , , Subkey 15-21 [ 19;33-1 ] letestui Plant , , , Subkey 26 [ ] longipetiolata Plant , Leaf , , Subkey 14 [ ] macrocarpa Plant , , , Subkey 27-28 [ 27;59-1 ] mauricei (is B. loranthoides) Plant , Leaf , Flower , Subkey 15-21 [ 16;24-1 16;58-2 17;31-1 ] microsperma Plant , Leaf , Flower , Subkey 2-3b [ 2;9-1 2;10-1 3;10-2 ] molleri Plant , Leaf , , Subkey 15-21 [ 16;43-2 16;59-2 ] oxyloba Plant , , , Subkey 4 [ 4;53-1 ] partita (is dregei) Plant , Leaf , Flower , Subkey 5 [ 5;19-2 ] polygonoides Plant , Leaf , Flower , Subkey 14 [ 14;37-2 16;16-1 16;65-2 ] prismatocarpa Plant , , Flower , Subkey 7-12 [ 5;24-2 9;32-1 12;7-2 ] quadrialata Plant , Leaf , Flower , Subkey 2-3b [ 2;25-1a ] quadrialata ssp. nimbaensis Plant , Leaf , , Subkey 2-3b [ 2;25-1a ] richardsiana (is dregei) Plant , Leaf , Flower , Subkey 5 [ --- ] scapigera Plant , Leaf , , Subkey 2-3b [ 3;14-2a ] staudtii Plant , Leaf , Flower , Subkey 2-3b [ 3;14-2a ] American species acetosa Plant , Leaf , , Subkey 26 [ --- ] aconitifolia Plant , Leaf , Flower , Subkey 4 [ 4;12-2 5;13-2 ] acutifolia Plant , , Flower , Subkey 29_30 [ 29;43-1 30;51-1 ] albo-picta Plant , Leaf , Flower , Subkey 15_21 [ 15;22-1a ] alice-clarkiae Plant , , , Subkey 7_12 [ 12;44-1 ] angularis Plant , Leaf , , Subkey 29_30 [ 30;60-2 30;114-1 ] angulata Plant , , , Subkey 29_30 [ 30;43-1 ] arborescens var. oxyphylla Plant , , , Subkey 15_21 [ ] attenuata (is lanceolata) . Plant , Leaf , Flower , Subkey 14 [ 13;7-2 ] barkeri Plant , Leaf , , Subkey 25 [ 22;47-1 22;49-2 ] bowerae var. major Plant , Leaf , , Subkey 25 [ 25;47-1 ] cardiocarpa Plant , Leaf , Flower , Subkey 25 [ 22;38-2 25;45-2 25;52-2 ] carolineifolia Plant , Leaf , , Subkey 5 [ 5;4-1 ] carrieae Plant , Leaf , , Subkey 25 [ 22;40-2 25;61-2 ] coccinea Plant , , Flower , Subkey 29_30 [ 30;84-1 ] conchifolia Plant , , , Subkey 2_3 [ 2;6-1 2;52-1 ] conchifolia var. rubrimacula Plant , Leaf , Flower , Subkey 2_3 [ --- ] convolvulacea Plant , Leaf , , Subkey 26 [ 26;54-1 ] corallina Plant , , , Subkey 29_30 [ 30;103-1 30;118-2 ] cordata Plant , Leaf , Flower , Subkey 26 [ 24;8-1 ] crassicaulis Plant , Leaf , Flower , Subkey 5 [ 1;2-1 5;15-1 ] crispula Plant , Leaf , , Subkey 7_12 [ 7;17-1 ] cubensis Plant , Leaf , , Subkey 7_12 [ 12;43-1 19;7-1 28;61-2 29;48-1 29;57-1 30;70-2 32;43-2 32;88-1 34;52-2 ] cucullata Plant , Leaf , Flower , Subkey 7_12 [ 12;62-1 15;24-2 16;25-1 ] cucullata var. arenosicola Leaf , Female flower , Male flower , Subkey 7_12 [ --- ] dichotoma Plant , Leaf , Flower , Subkey 33_34 [ 31;21-2 34;41-1 ] dichroa , Leaf , Flower , Subkey 29_30 [ 30;35-1 ] domingensis Plant , , , Subkey 31_32 [ 32;87-1 ] echinosepala Plant , Leaf , , Subkey 15_21 [ 19;31-1 29;5-1 ] echinosepala var. elongatifolia Plant , Leaf , Flower , Subkey 15_21 [ --- ] egregia Plant , Leaf , , Subkey 2_3 [ 3;73-1 ] epipsila Plant , , , Subkey 31_32 [ 29;68-1 29;73-1 32;74-1 ] fagifolia hort. Plant , Leaf , , Subkey 7_12 [ 11;17-2 ] fernando-costae Plant , Leaf , , Subkey 31_32 [ 32;100-1 ] fischeri Plant , Leaf , Flower , Subkey 7_12 [ 11;5-1 11;16-1 12;10-2 12;32-1 28;63-1 28;99-2 28;102-2 ] foliosa Plant , Leaf , Flower , Subkey 15_21 [ 17;27-2 17;49-2 18;13-2 18;6-1 ] fonsecae Plant , Leaf , , Subkey 2_3 [ 3;5-2a ] friburgensis Plant , Leaf , , Subkey 26 [ 24;57-2 ] fulvo-setulosa Plant , Flower Female , Flower Male , Subkey 14 [ 13;8-2 ] fusca , Leaf , , Subkey 25 [ 22;60.2 / 22;67-1 / 25;53-1 ] gehrtii , Leaf , , Subkey 31_32 [ 32;63-1 ] glabra Plant , Leaf , Flower , Subkey 14 [ 14;14-2 ] gracilis Plant , , Flower , Subkey 27_28 [ 28;59-1 ] heracleifolia Plant , Leaf , Flower , Subkey 5 [ 5;15-2 ] heracleifolia var. nigricans . Plant , Leaf , , Subkey 5 [ --- ] heracleifolia 'Pyramadilio' hort Plant , Leaf , , Subkey 5 [ ] herbacea Plant , , Flower , Subkey 14 [ 13;8-1 ] hispida var. cucullifera Plant , Leaf , , Subkey 31_32 [ 29;25-1 31;49-1 ] holtonis Plant , , , Subkey 14 [ 14;71-1 17;24-1 ] humilis var. porteriana Plant , , , Subkey 29_30 [ 27;18-1 27;82-1 29;13-2 29;27-1 30;19-1 30;30-2 30;39-1 ] hydrocotylifolia Plant , Leaf , Flower , Subkey 25 [ 7;6-2 ] hypolipara (is sericoneura) Plant , Leaf , , Subkey 25 [ 7;12-2 ] imperialis Plant , Leaf , Flower , Subkey 25 [ 8;59-1 22;8-1 ] imperialis var. smaragdina Plant , , , Subkey 25 [ 8;59-1 22;8-1 ] incarnata Plant , Leaf , , Subkey 29_30 [ --- ] involucrata Plant , , , Subkey 31_32 [ 4;72-2 32;17-1 33;15-1 ] juliana Plant , Leaf , Flower , Subkey 29_30 [ 19;30-1 ] karwinskyana Plant , , , Subkey 25 [ 25;53-1a ] kellermanii Plant , Leaf , Flower , Subkey 2_3 [ 3;70-2 ] kenworthyae Plant , Leaf , , Subkey 4 [ 4;40-2 ] lanceolata Plant , Leaf , Flower , Subkey 14 [ 13;9-1 ] leathermaniae Plant , , , Subkey 4 [ 4;7-1 ] leptotricha (is subvillosa var. leptotricha) Plant , Leaf , Flower , Subkey 27_28 [ --- ] lindleyana Plant , Leaf , Flower , Subkey 2_3 [ 2;7-2 2;43-2 ] listada Plant , Leaf , , Subkey 14 [ 14;63-1 29;73-2 32;50-1 ] ludicra Plant , Leaf , , Subkey 25 [ 25;36-1 25;55-1 26;55-1 ] ludwigii Plant , Leaf , , Subkey 4 [ ] luxurians Plant , Leaf , , Subkey 4 [ 4;5-1 ] lyniceorum , Leaf , , Subkey 2_3 [ 3;7-2a ] macdougallii Plant , , , Subkey 5 [ 5;4-2 ] macduffieana Plant , Leaf , , Subkey 29_30 [ 30;117-1a ] maculata Plant , , Flower , Subkey 29_30 [ 30;118-1 ] manicata Plant , Leaf , Flower , Subkey 25 [ 3;5-1 3;64-2 29;49-1 29;65-1 32;57-1 ] manicata var. aureo-maculata Plant , Leaf , Flower , Subkey 25 [ --- ] manicata 'Crispa' Plant , Leaf , , Subkey 25 [ --- ] mazae Plant , , , Subkey 33_34 [ 33;37-1 33;45-1 ] meridensis , Leaf , , Subkey 15_21 [ 20;6-1 ] metallica Plant , , , Subkey 4 [ 4;24-1 31;54-1 ] minor Plant , Leaf , , Subkey 29_30 [ 30;48-1 30;69-1 ] mollicaulis Plant , Leaf , Flower , Subkey 31_32 [ 31;50-2 ] multinervia Plant , Leaf , Flower , Subkey 31_32 [ 32;86-2 33;47-2 ] multistaminea Plant , , , Subkey 25 [ 25;53-1b ] nelumbiifolia Plant , Leaf , Flower , Subkey 2_3 [ 2;35-1 2;55-2 ] nelumbiifoliaRedVein Plant , Leaf , Flower , Subkey 2_3 [ ] nelumbiifoliaRubra Plant , , , Subkey 2_3 [ ] oaxacana Plant , , , Subkey 33_34 [ 30;86-1 34;64-1 ] obliqua Plant , Leaf , , Subkey 31_32 [ 32;41-1 32;101-1 ] odeteiantha Plant , Leaf , , Subkey 15_21 [ 20;45-1 20;55-1 ] odorata Plant , Leaf , , Subkey 31_32 [ 32;102-1 34;78-1 ] olbia Plant , , , Subkey 4 [ 4;32-2 ] opulifera . Plant , , , Subkey 15_21 [ 17;32-1 ] organensis Plant , Leaf , Flower , Subkey 22_24 [ 23;51-1 ] oxyphylla Plant , Leaf , , Subkey 15_21 [ 16;8-2 17;10-1 17;19-1 19;21-1 21;82-1 ] paleata Plant , Leaf , Flower , Subkey 7_12 [ 10;6-2a 31;20-2 ] paranaensis Plant , , , Subkey 4 [ 4;21-1 ] parilis Plant , Leaf , , Subkey 15_21 [ 14;10-2 14;69-2 15;17-2 ] peltata Plant , Leaf , Flower , Subkey 2_3 [ 3;70-1 ] petasitifolia Plant , Leaf , , Subkey 7_12 [ 7;16-1 9;8-2 9;10-2 10;6-1 ] pilifera (is sericoneura) Plant , Leaf , Flower , Subkey 25b [ --- ] pinetorum Plant , Leaf , Flower , Subkey 25b [ 22;6-1 ] platanifolia Plant , Leaf , , Subkey 4 [ 4;32-1 5;13-1 32;7-2 32;24-1 32;45-1 33;9-1 33;18-1 34;14-1 ] plebeja Plant , Leaf , Flower , Subkey 25b [ 22;15-1* 22;20-2* 22;28-1* 22;30-2* 25-37-2 ] popenoei Plant , Leaf , Flower , Subkey 26 [ 24;44-1 24;78 24;82 ] pseudolubbersii Plant , Leaf , , Subkey 29_30 [ 20;67-1 30;87-2 30;96-1 30;116-2 ] pustulata Plant , Leaf , Flower , Subkey 25b [ 22;50-1 32;66-1 ] radicans Plant , Leaf , , Subkey 7_12 [ 9;28-1 11;34-2 14;14-1 15;22-1 ] reniformis Plant , Leaf , Flower , Subkey 33_34 [ 4;23-2 29;17-1 31;36-2 34;39-2 34;59-1 ] salicifolia Plant , Leaf , , Subkey 15_21 [ 15;15-2 17;52-1 20;13-1 ] sanguinea Plant , Leaf , Flower , Subkey 29_30 [ 18;45 30;117-1 34;71-1 ] sanguinea Plant , Leaf , , Subkey 33_34 [ ] sarcophylla (is sartorii) Plant , , , Subkey 31_32 [ 32;24-2 32;86-1 ] scabrida Plant , Leaf , , Subkey 31_32 [ 31;16-1 ] sceptrum hort. (is aconitifolia) Plant , Leaf , , Subkey 4 [ 4;12-2 5;13-2 ] scharffiana Plant , Leaf , Flower , Subkey 31_32 [ --- ] scharffii Plant , Leaf , Flower , Subkey 31_32 [ 29;21-1 ] schmidtiana Plant , Leaf , Flower , Subkey 27_28 [ 28;61-1 ] sericoneura Plant , Leaf , Flower , Subkey 25b [ 22;66-1 24;58-1 24;110 25;60-2 32;21-2 ] solananthera Plant , , , Subkey 7_12 [ 9;27-1 11;34-1 ] soli-mutata Plant , Leaf , Flower , Subkey 25b [ 9;5-1a ] sousae Plant , Leaf , Flower , Subkey 25b [ 25;56-1a ] stigmosa Plant , Leaf , Flower , Subkey 25b [ 22;49-1* 22;54-1 ] strigillosa Plant , Leaf , , Subkey 25b [ 22;42-1 22;58-2 25;45-1 ] subvillosa Plant , Leaf , Flower , Subkey 27_28 [ 27;84-2 28;62-1 ] subvillosa var. leptotricha Plant , Leaf , Flower , Subkey 27_28 [ --- ] sulcata (is dichotoma) Plant , Leaf , Flower , Subkey 31_32 [ --- ] tenuicaulis Plant , Leaf , , Subkey 7_12 [ 8;55-2 ] teuscheri Plant , Leaf , , Subkey 29_30 [ --- ] thelmae Plant , Leaf , Flower , Subkey 15_21 [ 19;4-2 ] thiemei Plant , Leaf , , Subkey 5 [ 5;3-1 ] toledoana Plant , Leaf , , Subkey 31-32 [ 32;36-2 ] tomentosa Plant , , , Subkey 33_34 [ ] ulmifolia , Leaf , , Subkey 15_21 [ 17;5-1 ] umbraculifera Plant , Leaf , , Subkey 2-3 [ 3.25-1 ] undulata Plant , Leaf , Flower , Subkey 15_21 [ 20;5-1 ] valida Plant , Leaf , , Subkey 33_34 [ 32;13-2 34;5-1 ] venosa Plant , Leaf , Flower , Subkey 31_32 [ 29;71-1 32;60-2 ] violifolia Plant , Leaf , Flower , Subkey 25b [ 25;22-1 25;48-1 ] wallichiana Plant , , Flower , Subkey 27_28 [ 28;45-1 ] wollnyi Plant , Leaf , Flower , Subkey 4 [ 4;60-1 ] Asian species amphioxus Plant , Leaf , Flower , Subkey 2_3c [ 3;30-1a ] areolata Plant , , , Subkey 31_32 [ 32;49-1 ] atricha Plant , , , Subkey 27_28 [ 28;21-1 ] bipinnatifida Plant , Leaf , , Subkey 6 [ 6;8-1 ] brevirimosa Plant , Leaf , Flower , Subkey 27_28 [ 28;121-2 ] chitoensis Plant , Leaf , , Subkey 33_34 [ 34;65-2 34;86-2 ] chloroneura Plant , Leaf , , Subkey 26 [ 26;93-1a ] chlorosticta Plant , Leaf , Flower , Subkey 29_30 [ 30;30-1b ] chuniana Plant , Leaf , , Subkey 26 [ 26;29-1a ] coriacea Plant , Leaf , , Subkey 2_3c [ 2;37-1 ] deliciosa Plant , Leaf , Flower , Subkey 4 [ --- ] diadema Plant , , , Subkey 5 [ 5;12-1 ] dipetala Plant , Leaf , , Subkey 29_30 [ 30;76-1 ] emeiensis Plant , , Flower , Subkey 4 [ 4;53-2a ] exotica Plant , Leaf , , Subkey 27_28 [ 28;121-2 ] fasciculata Plant , , , Subkey 7_12 [ 12;33-1 ] floccifera Plant , , , Subkey 7_12 [ 7:10-2 ] fomosana Plant , Leaf , , Subkey 7_12 [ ] goegoensis Plant , Leaf , , Subkey 2_3c [ ] grandis var. evansiana Plant , , Flower , Subkey 7_12 [ 12;53-1 ] handelii (is chuniana) Plant , Leaf , , Subkey 26 [ 26;29-1a ] hatacoa Plant , Leaf , Flower , Subkey 15_21 [ 16;10-1 ] hatacoa 'Silver' Plant , Leaf , Flower , Subkey 15_21 [ --- ] hernandioides Plant , Leaf , Flower , Subkey 2_3c [ 2;33-1 ] isoptera Plant , Leaf , Flower , Subkey 15_21 [ 21;60-1 27;94-1 ] kingiana Plant , Leaf , , Subkey 2_3c [ 2;32-1 ] leprosa Plant , Leaf , Flower , Subkey 26 [ 24;47-2 24;76-2 ] limprichtii Plant , Leaf , , Subkey 26 [ 26;27 ] longiciliata Plant , Leaf , , Subkey 7_12 [ 8;6-1a ] lunatistyla Plant , Leaf , Flower , Subkey 14 [ 14;34-1 14;42-1 14;61-2 21;81-2 ] masoniana Plant , Leaf , Flower , Subkey 26 [ 24;89-2 24;110-2 26;81-1 ] multangula Plant , Leaf , Flower , Subkey 4 [ 4;23-1 34;37-1 34;44-1 ] muricata , Leaf , , Subkey 7_12 [ 8;6-2 8;70-1 22;18-1 23;12-2 ] nigritarum Plant , Leaf , Flower , Subkey 22_24 [ ] oligantha Plant , Leaf , Flower , Subkey 15_21 [ 18;13-1 ] pavonina Plant , Leaf , Flower , Subkey 26 [ 24;25-1 ] pedatifida Plant , Leaf , , Subkey 4 [ 4;51-1 ] rajah Plant , , Flower , Subkey 26 [ 23;4-2a ] rex , Leaf , Flower , Subkey 26 [ 23;36-1 24;94-2 ] robusta Plant , , , Subkey 31_32 [ 32;4-1 32;31-1 ] roxburghii Plant , Leaf , Flower Male , Flower Female Subkey 33_34 [ 34;71-2 ] serratipetala Plant , Leaf , , Subkey 6 [ 6;4-2 6;17-2 ] silletensis var. mengyangensis Plant , Leaf , , Subkey 27_28 [ ] tayabensis Plant , Leaf , Flower , Subkey 2_3c [ 2;39-1 ] velloziana Plant , , , Subkey 14 [ ] versicolor Plant , Leaf , Flower , Subkey 25 [ 25;57-1 ] warburgii Plant , , , Subkey 6 [ 6;8-2 ] xanthina Plant , , , Subkey 26 [ ] Notes: * indicates original listing in the Begoniaceae Key but now judged to be incorrect.