Biology
Hāpuʻu ʻiʻi can grow up to 35 feet (11 m) tall but are usually 7 to 25 feet (2.1 to 7.6 m) in height with a diameter of nearly 3 feet (0.91 m), making it Hawaiʻi's largest tree fern. The trunk is made of stiff hard fibres surrounding a starchy pith in the centre. The green fronds have yellow midribs and are paler on the underside. They grow to as long as 12 feet (3.7 m). Stems are covered in red or black bristles. The fronds are singularly divided but divide at the end where the spores form.
Read more about this topic: Cibotium Menziesii
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