Columnea ambigua
A small epiphytic gesneriad endemic to Puerto Rico, with glossy egg-shaped leaves, yellow hummingbird-pollinated flowers held in green or red calyces, and round white berries. It grows on trees and rocks in wet premontane and montane forest such as El Yunque. Treat it as a humid, cool-to-warm cloud-forest epiphyte: bright shade, constant moisture around the roots, never waterlogged.
Where it grows wild
Humid premontane and montane forest, growing as an epiphytic shrub on trunks and on rock faces. In El Yunque these forests range from tabonuco forest at 200–900 m up through palo colorado forest above about 760 m to cloud forest near 900 m, with 3000–6000 mm of rain a year.
GBIF records span 14–1203 m with a median of 815 m (30 records with elevations), so it is mostly a mid- to upper-montane plant. Low records probably come from wet ravines.
🔒 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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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.