EcoFloraWeb-KeyPSC 5550/6550 Set 2 Weeds

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Home >> Checklist: PSC 5550/6550 Set 2 Weeds >> Previous version of Key >> Identification Key (new version): PSC 5550/6550 Set 2 Weeds Filter/Display Options Family/Genus Filter: Sort by: Display Common Names Display images Plant habit vines / lianas grass-like special groups composites spurges dicots monocots longevity annual or biennial perennial sap latex absent (sap clear) latex present Leaves arrangement/phyllotaxy basal alternate opposite whorled blade division all simple deeply lobed or divided some or all fully compound leaf (blade) presence leaf blades present no leaves apparent leaf attachment sessile or nearly so leaf stalk (petiole) clearly present sheathing Flower principal flower color white or cream purple green yellow orange red pink inconspicuous flower type daisy- or dandelion-like radial symmetry 4 petals radial symmetry 5 petals petals indistinguishable ovaries/pistils per flower 1 more than 5 Fruit or Cone fruit consistency at maturity dry/leathery fleshy mature fruit dehiscence 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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