This is the 16246th most frequent Russian word.
растениях
"Plants."
The word is used to indicate plants as the subject of the book being read.
Я читаю книгу о растениях.
I am reading a book about plants.
The word references plants as the objects being cared for.
Она любит ухаживать за растениями.
She loves taking care of plants.
The word is part of a phrase that describes the topic of university lectures.