List of Weeds
The following list of weeds includes plants that appear where no one planted them. Among them, you'll find both lawn invaders and field pests.
silver bur ragweed
Ambrosia chamissonis
purplestem beggarticks
Bidens connata
wild radish
Raphanus raphanistrum
wild oat
Avena fatua
field pennycress
Thlaspi arvense
hairy Indian mallow
Abutilon grandifolium
thorn-apple
Solanum incanum
mist flower
Ageratina riparia
ripgut brome
Bromus diandrus
bur chervil
Anthriscus caucalis
strawcolored flatsedge
Cyperus strigosus
nodding spurge
Euphorbia nutans
slender threeseed mercury
Acalypha gracilens
heartleaf madeiravine
Anredera cordifolia
Large-flowered Evening-primrose
Oenothera glazioviana
prostrate pigweed
Amaranthus albus
white moneywort
Alysicarpus vaginalis
stinking chamomile
Anthemis cotula
northern evening primrose
Oenothera parviflora
cutleaf nightshade
Solanum triflorum
San Diego bur ragweed
Ambrosia chenopodiifolia
smallspike false nettle
Boehmeria cylindrica
shyleaf
Aeschynomene americana
prostate pigweed
Amaranthus blitoides
Cheesebush
Ambrosia salsola
small carpgrass
Arthraxon hispidus
triangle bur ragweed
Ambrosia deltoidea
white wallrocket
Diplotaxis erucoides
common bugloss
Anchusa officinalis
corn chamomile
Anthemis arvensis
Alexanders
Smyrnium olusatrum
poverty brome
Bromus sterilis
orange mullein
Verbascum phlomoides
animated oat
Avena sterilis
hispid starbur
Acanthospermum hispidum
rye brome
Bromus secalinus
Kikuyu Grass
Cenchrus clandestinus
spiderwisp
Cleome gynandra
Bishop's Weed
Aegopodium podagraria 'Variegatum'
Indian jointvetch
Aeschynomene indica
washerwoman
Alternanthera caracasana
common orache
Atriplex patula
Himalayan blackberry
Rubus armeniacus
largefruit amaranth
Amaranthus deflexus
willowleaf lettuce
Lactuca saligna
Mediterranean amaranth
Amaranthus graecizans
clammy groundcherry
Physalis heterophylla
flatspine bur ragweed
Ambrosia acanthicarpa
prairie broomweed
Amphiachyris dracunculoides
lanceleaf fogfruit
Phyla lanceolata
early goldenrod
Solidago juncea
blow wives
Achyrachaena mollis
biddy-biddy
Acaena novae-zelandiae
jute
Corchorus aestuans
Java aerva
Aerva javanica
sticky snakeroot
Ageratina adenophora
black-grass
Alopecurus myosuroides
Common Andryala
Andryala integrifolia
Creeping Cradle Plant
Cyanotis axillaris
African boxthorn
Lycium ferocissimum