Baby Blue Eyes
Baffin Fescue
Baikal Sedge
Bald Brome
Bald Spikerush
Ballmustard
Balsam Groundsel
Balsam Poplar
Baneberry
Barley
Barren Ground Willow
Barrenground Willow
Bastard Toadflax
Beach Pea
Beach Pine
Beach Strawberry
Beachhead Iris
Beaked Sedge
Beaksedge
Bear Sedge
Bearded Fescue
Bearded Wheatgrass
Beardtongue
Beautiful Sandwort
Beauverd Spirea
Bebb Willow
Bedstraw
Beechfern
Beggarticks
Bellardi Bog Sedge
Bellflower
Bellis
Bent Alkaligrass
Bentgrass
Bering Chickweed
Bering Dwarf-primrose
Bering Hairgrass
Bering Sea Dock
Bering Sea Sedge
Biennial Wormwood
Big Chickweed
Big Western Bittercress
Bigflower Tellima
Bigleaf Lupine