Tags: Fern.
Cystopteris bulbifera (bulblet bladderfern) is a low-growing rock fern with creeping stems and narrow elongate deltate fronds which grow to 75 cm (30 in) native to eastern North America with two disjunct populations in the west. It is found only on calcareous substrates such as limestone. It commonly festoons limestone cave openings. While most commonly found on vertical rock faces it also grows in rocky scree. C.
