Seemannia purpurascens (Purple Seemannia)
Botanical names: Seemannia purpurascens, Gloxinia purpurascens
Common name: Purple Seemannia
Family: Gesneriaceae
Origin: Bolivia
The plants are tall-growing and somewhat weedy in appearance, with lavender, pink or magenta flowers that have a contrasting bright green limb. The leaves are usually bright green but occasional individuals have very dark leaves with reddish-purple undersides.
Similar plants: Seemannia purpurascens (Purple Seemannia)
Link to this plant:
https://toptropicals.com/catalog/uid/seemannia_purpurascens.htm