The outer layer of the stem usually has a tough cuticle, reinforced with waxy layers, which reduce water loss.
(The outer layer of the stem; has; a tough cuticle, reinforced with waxy layers,; T:usually) (a tough cuticle; reinforced; with waxy layers) (waxy layers; reduce; water loss)
The outer layer of the stem a tough cuticle waxy layers
has reinforced reduce
a tough cuticle, reinforced with waxy layers, T:usually
with waxy layers
water loss