A Tree is Growing

throughout

all the way through

clumps

groups or bunches of things, especially plants and dirt

tropical

having to do with the warm areas of the Earth near the equator

passage

narrow paths or channels

spines

sharp, pointy growths

absorb

take in or soak up

coverings

the outsides of things, usually serving as protection

pollen

tiny yellow grains made by flowering plants

store

to put away for later use

dissolve

to seem to disappear when mixed with liquid