BRAN
The 'germ' is the embryo of the wheat kernel separated in milling and used especially as a source of vitamins and protein.
grain
an ear of corn
wheat
What is the first letter of a fourteen-letter word meaning a person in charge of a plant?
The plant is a hybrid created by splicing genes from wheat and tobacco.
"Wort" is a word in its own right, meaning a plant, herb or plant part, especially a root. It is sometimes found as a part of compound names of plants such as sneezewort, a plant which makes you sneeze.
Beetroot is the root of a plant, hence the word root!
The spelling "flower" is part of a plant used in reproduction. The sound-alike word is "flour" (ground wheat or other grains).
There is no native word for wheat. Modern Hawaiian borrowed the English word "wheat", but pronounces it "huika".
thistle
Vegetation