Peperomia umbrosa
A tiny tuberous Peperomia (subgenus Tildenia) from the high Andes of Peru, found at 3560–4190 m. It grows in shady rock crevices and in a dark, wet cave-like rock formation, and has only a few round leaves 1–1.5 cm across on long thread-like stalks. It grows while the rains last and dies back to a small tuber for the dry season. It needs cool, shaded conditions and a dry, cold rest to match.
Where it grows wild
A geophyte: a small tuber (0.6–0.8 cm) rooting all over its surface, from which 3–6 leaves and a few flower spikes grow each rainy season. The type was found in a cave-like rock formation, dark and wet, in loamy soil with liverworts, along a partly underground creek. Other collections grew in crevices and at the base of rocks in shade that was less extreme. The name umbrosa refers to this shady habitat.
3560–4190 m in the high Andes (puna and jalca grassland with rock outcrops): type locality 3560 m at Cumbemayo, other collections at 4160 and 4190 m.
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The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:
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