Question: Where can both Himalayacalamus and Pterocarya be found?

Context paragraphs:
Himalayacalamus asper: Himalayacalamus asper is a species of flowering plant in the family Poaceae found in Nepal

Himalayacalamus: Himalayacalamus is an Asiangenus of mountain clumping bamboo in the grass family.  Species members are found growing at lower altitudes of the Himalaya in Bhutan, Tibet, India, and Nepal.

Himalayacalamus hookerianus: Himalayacalamus hookerianus is a species of flowering plant in the family Poaceae found in Nepal, Sikkim, Bhutan, and Assam

Pterocarya: Pterocarya, often called wingnuts in English, are trees in the walnut family Juglandaceae.  They are native to Asia.  The botanic name is from Ancient Greek πτερον ("pteron") "wing" + κάρυον ("karyon") "nut".

Supporting paragraphs: Himalayacalamus Pterocarya
Answer: Asia