B

bacc-: referring to berries ("baccata" / "baccifera" = "berry-bearing")
balear-: referring to the Balearic Islands ("balearica")
bambus-: referring to bamboo ("bambusoides" = "like bamboo")
barbar-: foreign ("barbarus")
barbadensis: native to Barbados
barbat-: bearded ("barbatus")
barbi-: referring to beards or barbs ("barbigera" = "bearing barbs")
basil-: royal ("basilicum"); ALSO basal ("basilaris")
bell-: handsome, pretty ("bellus" / "bellatus")
benghalensis: of or from the State of Bengal in India
betul-: referring to the beech tree genus, _Betula_, the ancient Latin name of the tree ("betuloides" = "like a beech")
bi-: referring to the number two, twice ("bipinnatus" = "twice-pinnate"
-bi(...): referring to life (_Dendrobium_ = "tree + life," because this orchid genus is epiphytic on trees)
bienn-: biennial ("biennis")
bifurcat-: twice-forked ("bifurcata")
bland-: mild, pleasant ("blanda")
-blast(...): referring to an embryo (_Rhopaloblaste_ = "club-shaped embryo")
blephar-: referring to an eyelash, therefore, fringed ("blepharophylla" = "fringed leaves")
bombyc-: referring to silk ("bombycina")
bon-: good ("bonus"
boreal-: northern ("borealis")
botry-.: referring to a cluster ("botryoides" = "cluster-like")
brach-: referring to a branch or an arm ("brachiatus")
brachy-: short, squat ("brachypodum" = "short foot")
bract-: referring to bracts ("bracteata") - a bract is a leaf-like OR petal-like structure beneath the true petals of some flowers ("bracteosum")
brevi-: short ("brevis"
brun-: brown ("brunneus")
bry-: referring to moss ("bryoides")
bucephalus: ox-headed
bulb-: referring to a bulb ("bulbosa"
bullat-: swollen ("bullatus")