Baeckea omissa -
Baloskion fimbriatum Fringed Cord-rush
Baloskion stenocoleum Narrow Cord-rush
Banksia integrifolia subsp. compar Honeysuckle Oak, White Banksia
Banksia neoanglica New England Banksia
Baumea articulata Jointed Twig-rush
Baumea planifolia Square Twig-rush
Baumea rubiginosa Soft Twig-rush
Bertya glandulosa - (V)
Bertya recurvata - (E)
Bidens bipinnata Beggar's Ticks, Bipinnate Beggar's Ticks, Cuckolds, Spanish Needles (*)
Bidens pilosa Cobblers Pegs, Pitch-forks, Teasers (*)
Billardiera scandens Common Apple-berry, Dumplings, Hairy Apple-berry
Boronia amabilis Lovely Boronia, Wyberba Boronia (NT)
Boronia anethifolia Narrow-leaved Boronia
Boronia bipinnata Rock Boronia
Boronia granitica Granite Boronia (E)
Boronia inflexa subsp. grandiflora Showy Rock Boronia
Boronia inflexa subsp. inflexa Rock Boronia
Boronia microphylla Small-leaved Boronia
Boronia polygalifolia Dwarf Boronia, Forest Boronia
Bossiaea neoanglica -
Bossiaea obcordata Spiny Bossiaea
Bossiaea obovata -
Bossiaea prostrata Creeping Bossiaea
Bossiaea rhombifolia -
Bossiaea scortechinii -
Bothriochloa decipiens var. decipiens Pitted Blue-grass
Brachychiton populneus subsp. populneus Kurrajong
Brachyloma daphnoides subsp. daphnoides Daphne Heath
Brachyloma daphnoides subsp. glabrum Daphne Heath
Brachyscome chrysoglossa Yellow-tongue Daisy
Brachyscome microcarpa Brisbane Daisy, Forest Daisy
Brachyscome nova-anglica New England Daisy
Brachyscome scapigera Tufted Daisy
Brachyscome staceae Mountain Daisy
Brachyscome stuartii Stuart's Daisy
Briza maxima Blowfly Grass, Giant Shivery Grass, Large Quaking Grass, Quaking Grass, Shell Grass, Shivery Grass (*)
Briza minor Lesser Quaking Grass, Little Quaking Grass, Quaking Grass, Shivery Grass, Small Shivery Grass, Small Quaking Grass (*)
Bromus arenarius Australian Chess, Barley Grass, Native Brome, Sand Brome, Wild Oats
Bromus catharticus Prairie Grass (*)
Bromus diandrus Brome Grass, Great Brome, Jabbers, Ripgut Brome (*)
Bromus hordeaceus Bull Grass, Soft Brome, Soft Cheat, Soft Chess (*)
Brunoniella australis Blue Trumpet, Blue Yam
Buddleja davidii Butterfly Bush (*)
Bulbine bulbosa Bulbine Lily, Golden Lily, Native Leek, Native Onion
Bulbine semibarbata Leek Lily, Native Leek, Wild Onion
Bulbophyllum elisae Pineapple Orchid
Bulbostylis barbata Water Grass
Bulbostylis densa -
Burmannia disticha Paintbrushes
Bursaria spinosa subsp. spinosa Australian Blackthorn, Blackthorn, Prickly Pine, Sweet Bursaria, Kurwan (D'harawal)
