There are over three hundred genera and three thousand species of Gesneriads including such popular plants as Streptocarpus, Saintpaulia (African Violet), Columnea, Nematanthus (Guppy Plant), Codonanthe, Aeschynanthus (Lipstick Plant), and Episcia (Flame Violet).  Gesneriads are found on every continent except Antarctica.  Most are tropical, but some are alpines.
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Saintpaulia Kohleria Streptocarpus Diastema
Colmnea Kohleria  Kohleria Gesneriads at our Annual  CBG Show

Photos Courtesy Jane Miller