This is the 3192nd most frequent Russian word.
называемые
"Called" or "so-called."
The word "называемые" is used as a participle that describes the subject 'plants', introducing their specific name or designation.
Эти растения называемые суккулентами прекрасно приспособлены к засушливым условиям.
These plants, referred to as succulents, are well adapted to arid conditions.
Here, 'называемые' specifies that the objects have a particular designation or terminology, providing descriptive detail.
Различные предметы, называемые артефактами, были найдены на месте раскопок.
Various objects, called artifacts, were discovered at the excavation site.
In this sentence, 'так называемые' is used idiomatically to introduce skepticism or to quote terminology for the alternative methods discussed.