bitterwort
A plant of species Gentiana lutea (great yellow gentian), which has a very bitter taste.

bitterworts
plural of bitterwort

blackaroon
A species of small dark cherries found in Northern England and Scotland.

blackaroons
plural of blackaroon

blackseed
A spice plant with aromatic black seeds, Nigella sativa

blackseeds
plural of blackseed

blacksherry
Synonym of blackaroon.

bladderwrack
Fucus vesiculosus, a seaweed in which iodine was first discovered.

bladderwracks
plural of bladderwrack

blawort
Centaurea cyanus, cornflower.

blazingstar
Any of the plant of the genus Mentzelia, native to western North America, including Mexico.
Any of the plant of the genus Liatris, native to North America, including Mexico, east of the continental divide.

blazingstars
plural of blazingstar

blisterweed
Any of various plants of the genus Thamnosma.

blite
The plant Amaranthus blitum, purple amaranth.
Any of various plants in the genus Chenopodium.
Any of various plants in the genus Atriplex.

blites
plural of blite

blockwood
Wood of Haematoxylum campechianum, a tree from Mexico.

blooddrops
The plant Adonis annua.

bloodflower
Any plant in the genus Haemanthus, bulbous African plants of the amaryllis family.
A species of milkweed (Asclepias curassavica L.) with blood-red petals, native to the Central and South American tropics

bloodflowers
plural of bloodflower

bloodhorn
Ochrosia elliptica, an Australian tree.

bloodleaf
A plant of the genus Iresine that has colored leaves.

bloodleafs
plural of bloodleaf

bloodleaves
plural of bloodleaf

bloomingness
A blooming condition; bloom.

bloomkin
A small flower.

bloomkins
plural of bloomkin

bluecup
Any of the genus Githopsis of North American flowering plants in the bellflower family.

bluecups
plural of bluecup

bluecurls
Any plant in genus Trichostema, with blue flowers.

bluestar
Any of the genus Amsonia of flowering plants in the dogbane family, found mainly in North America.

bluestars
plural of bluestar

blueweed
Any of several species of plants with blue flowers:
Any of several species of plants with blue flowers:
Any of several species of plants with blue flowers:
Any of several species of plants with blue flowers:

blueweeds
plural of blueweed

bluewood
A tree of species Haematoxylon campechianum.
Wood of Haematoxylon campechianum.
Condalia spp., especially Condalia hookeri (syn. Condalia obovata).

bluewoods
plural of bluewood

blumea
Any plant of the taxonomic genus Blumea, composites found chiefly in southern Asia, some used for traditional medicine.

blushwood
Any of various Australian flowering plants in the spurge family Euphorbiaceae.

boatlip
An orchid of genus Scaphyglottis.

bodenvag
Any plant that is indifferent to the pH of the soil.

bodenvags
plural of bodenvag

bodock
The Osage orange (tree or fruit)

bodocks
plural of bodock

boerboon
Any of various flowering plants of the genus Schotia.

boerboons
plural of boerboon

bog clubmoss
Lycopodiella inundata, growing in boggy cool, subarctic, and alpine conditions in the northern hemisphere.

bog clubmosses
plural of bog clubmoss

bohereen
Alternative form of boreen.

bohereens
plural of bohereen

bohireen
Alternative form of boreen.

bohireens
plural of bohireen

bolidomonad
Any alga of the order Bolidomonadales

bolidomonads
plural of bolidomonad

bolidophycean
Any alga of the class Bolidophyceae

bolidophyceans
plural of bolidophycean

boltonia
Any member of genus Boltonia of plants in the sunflower family; doll's daisy.

boltonias
plural of boltonia

bonebract
A composite shrub of the genus Sclerocarpus

boobialla
Any of various plants of coastal or sandy regions, especially a small tree Acacia longifolia (subsp. sophorae), and various flowering plants in the genus Myoporum in the figwort family.

boobiallas
plural of boobialla

boobyalla
Alternative form of boobialla.

boobyallas
plural of boobyalla

boomdas
The southern tree hyrax, Dendrohyrax arboreus.

boorgay
The Australian plant Gymnostachys anceps.

boraxweed
The perennial herb Nitrophila occidentalis, western niterwort

boraxweeds
plural of boraxweed

boreen
A narrow, frequently unpaved, rural road in Ireland, often characterised by a ridge of grass growing in the middle.

boreens
plural of boreen

bornesitol
A cyclitol found in the Gentianaceae and Menyanthaceae plant families.

bosk
A bush.
A thicket; a small wood.

bosks
plural of bosk

bosque
Rare spelling of bosk.

botanol
A heterogeneous material consisting of synthesized natural plant oil and chalk, used primarily as a floor covering

botanomancy
Divination by plants. A form of pyromancy in which tree branches and/or leaves are burnt.
Tea-leaf reading, or tasseomancy.

botomancy
Alternative form of botanomancy.

botryopterid
Any extinct primitive fern of the genus Botryopteris.

botryopterids
plural of botryopterid

bough
A tree-branch, usually a primary one directly attached to the trunk.
A gallows.

boughe
Obsolete spelling of bough.

boughpot
Alternative form of bough pot.

boughpots
plural of boughpot

boughs
plural of bough

boulderer
A climber who takes part in bouldering.

bousillage
A mixture of clay and moss or grass, used in construction as a simpler substitute for pierrotage.

bouvardia
Any plant of the genus Bouvardia.

bouvardias
plural of bouvardia

bouzillage
Alternative form of bousillage.

bowe
Obsolete spelling of bow.

boxberries
plural of boxberry

boxberry
A teaberry bush (Gaultheria procumbens).

boxthorn
Any plant of the genus Lycium.

brab
The palmyra tree.

brabb
Alternative form of brab.

brabbs
plural of brabb

brabs
plural of brab

bracatinga
A tree of Brazil, Mimosa scabrella

braceletwood
Any of various plants of the genus Jacquinia.

brachionid
Any cup orchid of the genus Brachionidium

brachionids
plural of brachionid

brachypodium
Any grass of the genus Brachypodium.

brachypodiums
plural of brachypodium

bract
A leaf or leaf-like structure from the axil out of which a stalk of a flower or an inflorescence arises.

bracteole
A small leaf of leaf-like structure directly subtending a flower or inflorescence whose stalk itself is subtended by a bract.
A bract subtending an individual flower rather than an inflorescence.

bracteoles
plural of bracteole

bractlet
A bract on the stalk of a single flower, which is itself on a main stalk that supports several flowers

bractlets
plural of bractlet

bracts
plural of bract

brahmadanda
Literally, the rod of Brahma; also used of bamboo rods carried by Indian ascetics.
A form of punishment, apparently social excommunication.
The spine.

brahmadandas
plural of brahmadanda

brahmi
herb of grace, Bacopa monnieri

brambleberries
plural of brambleberry

brambleberry
The blackberry (plant or fruit).

bramblebush
A bush bearing brambles.

bramblebushes
plural of bramblebush

branchfall
The falling of weakened branches from trees, typically in autumn

branchlength
The length of a branch (typically of a phylogenetic tree)

branchlengths
plural of branchlength

branchwood
The wood that makes up the branches of a tree

branchwork
Collectively, the branches of a tree.
Any design or pattern resembling branches.

branchworks
plural of branchwork

brasiletto
Alternative form of braziletto.

brasilettoes
plural of brasiletto

brasilettos
plural of brasiletto

brassicacean
Any plant of the family Brassicaceae

brassicaceans
plural of brassicacean

brazeletta
Wood from the brazilwood tree.

brazilette
Synonym of braziletto (“timber of brazilwood”).

braziletto
The brazilwood tree.
The wood of the brazilwood tree.

brazilettoes
plural of braziletto

brazilettos
plural of braziletto

breadwort
The knotgrass Polygonum aviculare.

breare
Obsolete spelling of briar.

breelya
The plant Gastrolobium laytonii.

briar
Any of many plants with thorny stems growing in dense clusters, such as many in the Rosa, Rubus, and Smilax genera.
Anything that is sharp or unpleasant to the feelings.

briarberries
plural of briarberry

briarberry
Alternative form of brierberry.