4. CEPHALOSTACHYUM
Clump-forming tropical and subtropical bamboos up to 10m tall and up to 5cm in diameter, found in high rainfall forests. Smaller than Bambusa and Dendrocalamus species but larger than temperate bamboos, these two closely related genera are useful for weaving into mats, having flexible culms with internodes of up to 1m. The long internodes, often with fine ridges, are similar to those of Borinda grossa, but the leaves only have long parallel veins (fig. 20), without any of the short cross-veins seen in frost-hardy bamboos, (fig. 15).
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