Nephrolepis biserrata (giant swordfern, 长叶肾蕨) is a tropical fern, endemic to Florida, Mexico, the West Indies, Central America, South America, Africa, and southeast Asia.
Its stipes are grayish brown and 10–50 cm × about 4 mm in size, with brownish-green, papery lamina that are 14–30 cm wide × 0.7–2 m in length.
Aspidium acuminatum Willd.
Aspidium acutum Schkuhr
Aspidium biserratum Sw.
Aspidium ensifolium Schkuhr
Aspidium guineense Schumach.
Aspidium punctulatum Sw.
Hypopeltis biserrata (Sw.) Bory ...
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