Rough vegetation that was high in TV series? (9)

I believe the answer is:

chaparral

I believe this is a double definition.

'rough vegetation' is the first definition.
(chaparral is a type of vegetation)

'that was high in tv series?' is the second definition.
(as in The High Chaparral)

(Other definitions for chaparral that I've seen before include "US growth area" , "thicket" .)

I've seen this clue in The Times.

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