Tropical aquatic plant's position (5)

I believe the answer is:

lotus

I believe this clue is a double definition.

'tropical aquatic plant's' is the first definition.
(type of plant)

'position' is the second definition.
(lotus is a yoga position)

(Other definitions for lotus that I've seen before include "In myth, a plant whose fruit induced forgetfulness" , "Water lily - fruit inducing forgetfulness" , "Mythical fruit inducing state of luxurious dreaminess" , "Sacred flower" , "It helps with memory loss" .)

I've seen this clue in The Guardian.

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