. ▁The ▁cul m ▁walls ▁are ▁generally ▁very ▁thick ▁but ▁also ▁show ▁great ▁variation ▁in ▁this ▁thick ness . ▁The ▁nodes ▁are ▁prominent . ▁The ▁cul m ▁she ath ▁is ▁st raw - color ed ▁and ▁appear ▁large , ▁and ▁broad ; ▁the ▁top ▁of ▁the ▁she ath ▁is ▁rounded , ▁and ▁aur icles ▁are ▁small . ▁The ▁upper ▁surface ▁is ▁covered ▁with ▁golden ▁brown ▁hair s . ▁The ▁under ▁surface ▁is ▁not ▁hair y . ▁She ath s ▁fall ▁off ▁early . ▁M ature ▁cul ms ▁grow ▁very ▁straight ▁with ▁tap ering ▁occurr ing ▁only ▁at ▁the ▁upper ▁level , ▁and ▁the ▁cul ms ▁show ▁very ▁little ▁branch ing , ▁making ▁them ▁easier ▁to ▁har vest ▁upon ▁m atur ity . ▁ ▁This ▁species ▁flowers ▁inter mitt ently , ▁with ▁flow ering ▁events ▁occurr ing ▁at ▁time ▁intervals ▁greater ▁than ▁ 6 0 ▁years . ▁The ▁seed ▁is ▁very ▁frag ile ▁and ▁seed lings ▁have ▁a ▁high ▁mort ality ▁rate ▁requiring ▁considerable ▁care ▁and ▁controlled ▁environments ▁in ▁their ▁first ▁few ▁weeks ▁of ▁growth . ▁ ▁Although ▁with ▁a ▁wide ▁natural ▁occurrence ▁and ▁having ▁been ▁introduced ▁at ▁small ▁scale ▁to ▁many ▁countries ▁it ▁has ▁only ▁recently ▁been ▁grown ▁under ▁a ▁commercial ▁setting . ▁E co Plan et ▁B am bo o ▁became ▁the ▁first ▁entity ▁to ▁grow ▁D end ro cal am us ▁as per ▁from ▁seed ▁with ▁the ▁development ▁of ▁a ▁million ▁plant ▁nur ser y , ▁the ▁largest ▁of ▁its ▁kind , ▁focused ▁on ▁this ▁species . ▁In ▁ 2 0