Most of the rain that falls in the area is absorbed by the moss-lichen mat, so that to survive in the riverrun, plants need to have extremely deep roots, or to be very efficient at collecting water from the dry soil.
(the rain; falls; L:in the area) (plants; to to be; very efficient at collecting water from the dry soil) (Most of the rain; is absorbed; by the moss-lichen mat; so that to survive in the riverrun) (plants; need; to have extremely deep roots, or to be very efficient at collecting water from the dry soil) Context(plants need,List([112, 123))):(plants; need to have; extremely deep roots)
plants need,List([112, 123))
the rain plants Most of the rain plants plants
falls to to be is absorbed need need to have
L:in the area
very efficient at collecting water from the dry soil
by the moss-lichen mat so that to survive in the riverrun
to have extremely deep roots, or to be very efficient at collecting water from the dry soil
extremely deep roots