Northern Prairie Wildlife Research Center
Berry Bladderfern (Cystopteris bulbifera)
- Family: Fern (Polypodiaceae)
- Spores: June-September
- Field Marks: This fern possesses asexual bulblets on the under surface of the leaves, in addition to the rounded sori.
- Habitat: Moist, rocky woods, usually in limestone areas.
- Habit: Herbaceous fern with thickened rootstocks.
- Stems: The only stems are underground.
- Leaves: Pale green, 2 1/2 times pinnately compound, up to 2 feet long, each segment toothed, hairy; small bulblets sometimes formed on the lower leaf surface which fall to the ground and may develop into a new plant.
- Leaf stalks: Straw-colored, with transparent scales, up to 6 inches long.
- Reproductive Bodies: Round, scattered over the lower leaf surface.
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