Asplenium pumilum

Triangle spleenwort

A small, very variable spleenwort with thin, papery, hairy, triangular fronds up to about 16 cm long, found from Florida and Mexico through the Caribbean and Central America to Bolivia and Brazil. It grows on soil and rock, often limestone, in shaded, seasonally moist places within deciduous and seasonally dry forest. It suits a shaded terrarium with a limestone-rich mix.

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Ordinary room humidityBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Shaded, seasonally moist sites on the ground and on rock in tropical deciduous and seasonally dry forests. It often grows on limestone, from boulders in Florida to old stone walls in Yucatán.

The 337 GBIF records with an elevation span 0–3,400 m, median 650 m; most are lowland to lower-montane. It grows at sea level in Florida and around 250–300 m in the Sierra Madre Oriental.

MexicoCentral AmericaCaribbean: Cuba, Hispaniola, Jamaica, Puerto Rico, Lesser Antilles, TrinidadFloridaColombia and VenezuelaEcuador, including the Galápagos, and PeruBolivia and northwest ArgentinaBrazil: Northeast, Southeast and West-Central

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates

✓ Humidity band, and how to hold it

✓ Light as DLI and PPFD for a grow light

✓ Wet and dry seasons, and whether to rest it

✓ Substrate and airflow

✓ A step-by-step setup to grow it like the wild

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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.