Batatas (sweet potato)
Beans
Beet radish
Beetroot (red beet)
Bell pepper
Berber potato
Bibb lettuceBitterleaf
Bitter melon
Black beans Black eyed peas
Bok choy (Chinese cabbage)
Borecole
Boston lettuce
Broad bean
Broadleaf arrowhead
Broccoli Broccoli rabe
Brussel sprouts
Burdock
Butterhead lettuce
beets, buttersquash, balibali
· blueberry, blackberry, banana, boysenberry, bell pepper, butternut squash, banana squash, bottle gourd
Apricot, avocado and kumquat are 7 letter fruits.
· Baby's Breath
· Bee balm
· Black-eyed Susan
· Bluebells
· Buttercup
beetroot
Bean
· beet
Broccoli.
basil
Botany.
bigfoot
Brunhilde is perhaps the longest. But that is just for English language.
A nine letter word using those letters is boomerang.
Botrytis
bibliography
bounce
No Legendary Pokemon begin with the letter B.
boris
Backrushes.
BIJJIGGLEHIGGLE
Banff
Boston
BermudaBostonBarbadosBerlinBrussels
Barn
Benson