noun
Bambusa multiplex var. elegans; hedge bamboo variety
A specific ornamental variety of hedge bamboo. The name is a botanical term; in everyday contexts, it may simply be called ホウオウチク.
See also: 蓬莱竹
庭にホウオウチクを植えた。
I planted a hedge bamboo (Bambusa multiplex var. elegans) in the garden.
蓬莱竹 is the species Bambusa multiplex, while ホウオウチク is a specific variety (var. elegans) with finer, more ornamental leaves.
From 鳳凰 (ほうおう, 'phoenix') + 竹 (ちく, 'bamboo'), likely referring to the elegant, feathery appearance of the leaves.