air plant

Japanese: air plant（英語表記）airplant

...This genus has succulent opposite leaves, and about 110 species are known, divided into three groups, namely, Kalanchoe, K. pinnata, and K. kalanchoe. Of these, 25 species in the Kalanchoe subgenus and 11 species in the K. pinnata subgenus are all native to Madagascar, except for K. pinnata Persoon. (air plant) (illustration). The Kalanchoe subgenus has flowers that bloom downward and large calyxes. ...

From [Ursal Neogase]

…The seeds are long and thin, with pappus-like hairs, and are dispersed by the wind. It is widely distributed from southeastern North America to Peru, and is famous as a completely aerial plant whose roots are attached to the ground and have no other function. Due to its unique shape, it is cultivated in greenhouses for decorative purposes. It is somewhat resistant to cold, and is said to be able to survive winter outdoors in the warm southwestern parts of Japan. …

*Some of the terminology that mentions "air plant" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…この属は，多肉の対生する葉を有し，110種ほどが知られ，3群すなわちトウロウソウ，マダガスカルベンケイ，リュウキュウベンケイの3亜属に大別される。そのうちトウロウソウ亜属25種とマダガスカルベンケイ亜属11種は，前者のうちのセイロンベンケイ(トウロウソウ)K.pinnata Persoon.(英名air plant)（イラスト）を除いて，すべてマダガスカル島の原産である。トウロウソウ亜属は花が下向きに咲き，萼は大きい。…