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Checklist: PSC 5550/6550 Set 2 Weeds
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Identification Key (new version): PSC 5550/6550 Set 2 Weeds
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Plant
habit
vines / lianas
grass-like
special groups
composites
spurges
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monocots
longevity
annual or biennial
perennial
sap
latex absent (sap clear)
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radial symmetry 4 petals
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fruit consistency at maturity
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fleshy
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opening along 1-2 seams
opening along 3 to many seams
does not split open to release seed
PSC 5550/6550 Set 2 Weeds
Corey V. Ransom and Heather Elwood
Species Count: 25
Amaranthaceae
Amaranthus blitoides
Bassia scoparia
Salsola tragus
Asteraceae
Helianthus annuus
Brassicaceae
Brassica nigra
Capsella bursa-pastoris
Thlaspi arvense
Convolvulaceae
Cuscuta pentagona
Euphorbiaceae
Euphorbia dentata
Malvaceae
Abutilon theophrasti
Poaceae
Aegilops cylindrica
Avena fatua
Cenchrus longispinus
Echinochloa crus-galli
Elymus repens
Hordeum jubatum
Panicum miliaceum
Secale cereale
Setaria viridis
Sorghum halepense
Ranunculaceae
Ceratocephala testiculata
Rubiaceae
Galium aparine
Solanaceae
Physalis virginiana
Solanum physalifolium
Zygophyllaceae
Tribulus terrestris
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