3. BORINDA
Clump-forming frost-hardy bamboos, found in temperate forest from 1,800-3,200m, up to 10m tall, with prominent cross-veins on the leaves, tall buds, and finely grooved culm internodes that are up to 50cm long. These bamboos are similar to Thamnocalamus species, but they have seven branches in the first year, two additional branches extending behind the new culm (fig. 16). The long finely grooved culm internodes are different to those of Thamnocalamus and Himalayacalamus species, which are shorter and smooth. Culms
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