id	keyword
brj-23676	ray
brj-23676	uniseriate
brj-23676	wood
brj-23676	ray height
brj-23676	species
brj-23676	oak
brj-23676	et al
brj-23676	spacing
brj-23676	number
brj-23676	uniseriate ray
brj-23676	ray number
brj-23676	korean
brj-23676	juvenile
brj-23676	cells