Selaginella berthoudii

Selaginella berthoudii Lesquereux (1873) is a fossil name, not a living plant. GBIF holds it through the Paleobiology Database as extinct, dating from about 66 to 56 million years ago (Paleocene). Lesquereux described it from the early Tertiary floras of Colorado. It cannot be collected or grown, so this profile gives no cultivation targets.

At home, aim for

Day —Targets in Plantistry

Night —Targets in Plantistry

Humidity —Band in Plantistry

Light ShadeDLI and PPFD in Plantistry

No rest period

Where it grows wild

Known only from fossil remains. The Paleocene floras of the Rocky Mountain region grew in a warm, humid climate, but this cannot be turned into growing conditions.

Not applicable: it is a fossil taxon.

🔒 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.