Bluestem, Bushy [Andropogon glomeratus]
Bahiagrass [Paspalum notatum]
Bamboo [Fargesia denudata]
Barley [Hordeum vulagare]
Barrelcactus, California [Ferocactus acanthodes]
Bean, Castor [Ricinus communis]
Bean, Faba [Vicia faba]
Bean, Garden [Phaseolus vulgaris]
Bean, Lima [Phaseolus lunata]
Beech, American [Fagus grandifolia]
Beech, European [Fagus sylvatica]
Beech, Japanese [Fagus crenata]
Beech, Myrtle [Nothofagus cunninghamii]
Beech, Red [Nothofagus fusca]
Beet, Common [Beta vulgaris]
Begonia [Begonia x hiemalis]
Begonia x hiemalis [Begonia]
Beilschmiedia pendula [Slugwood]
Bentgrass, Colonial [Agrostis capillaris]
Bentgrass, Velvet [Agrostis canina]
Beta vulgaris [Common Beet]
Betula albosinensis [Chinese Red Birch]
Betula alleghaniensis [Yellow Birch]
Betula davurica [Dahurian Birch]
Betula maximowicziana [Monarch Birch]
Betula nana [Bog Birch]
Betula nigra [River Birch]
Betula papyrifera [Paper Birch]
Betula pendula [European White Birch]
Betula platyphylla [Broadleaf White Birch]
Betula pubescens Ehrh. [Downy Birch]
Birch, Bog [Betula nana]
Birch, Broadleaf White [Betula platyphylla]
Birch, Chinese Red [Betula albosinensis]
Birch, Dahurian [Betula davurica]
Birch, Downy [Betula pubescens]
Birch, European White [Betula pendula]
Birch, Monarch [Betula maximowicziana]
Birch, Paper [Betula papyrifera]
Birch, River [Betula nigra]
Birch, Yellow [Betula alleghaniensis]
Blackwood [Acacia melanoxylon]
Bluegrass [Poa cookii]
Bluegrass, Annual [Poa annua]
Bluegrass, Kentucky [Poa pratensis]
Bluegrass, Rough [Poa trivialis]