Begonia lichenora
A tiny creeping Begonia from western Sarawak, Borneo, described in 2017, whose leaves press flat against their substrate like a lichen. It grows on shaded slopes in lowland dipterocarp forest at around 100 m, so it wants warm, very humid, shaded terrarium conditions. It is grown by terrarium enthusiasts but little else is published about it.
Where it grows wild
Known from Bau and Padawan in western Sarawak near the Indonesian border, on shaded slopes in dipterocarp forest. The creeping, vine-like stems carry small leaves held tightly against the surface they grow on. Many small Bornean begonias of this area grow on limestone or sandstone rock faces and damp banks; the exact substrate for this species was not confirmed here.
About 100 m, per Wikipedia's summary of the original description.
🔒 Growing it like that
The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:
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