Begonia aconitifolia A.DC.
20140767 Cultivated material
Begonia acutifolia Jacq.
20011351 Wild collected in Jamaica
20031417 Wild collected in Cuba
20232114 Cultivated from material wild collected in Cuba
20232415 Cultivated from material wild collected in Jamaica
20232416 Cultivated from material wild collected in Jamaica
Begonia aequata A.Gray
19972515 Wild collected in Philippines
Begonia albo-picta W.Bull.
20030636 Cultivated material
Begonia albomaculata C.DC. ex Huber
20141059 Wild collected in Peru
20160121 Wild collected in Peru
20160122 Wild collected in Peru
20200530 Wild collected in Peru
20200531 Wild collected in Peru
Begonia alice-clarkiae Ziesenh.
20110203 Cultivated material
Begonia almedana Burt-Utley & Utley
20100266 Wild collected in Mexico
20232408 Cultivated from material wild collected in Mexico
Begonia amoeboides Moonlight
20160307 Wild collected in Peru
Begonia ampla Hook.f.
19990258 Wild collected in Sao Tome and Principe
19991117 Wild collected in Sao Tome and Principe
20140269 Wild collected in Sao Tome and Principe
Begonia anemoniflora Irmsch.
20160123 Wild collected in Peru
20200539 Wild collected in Peru
20200540 Wild collected in Peru