Spring Weeds 3: Page 1 (Aliens in red)
Fabaceae (Pea)
Medicago lupulina Black Medick
Lamiaceae
Glechoma hederacea Creeping Charlie (Ground Ivy): opposite leaves, square stems
Grossulariaceae
Ribes missouriense Missouri Gooseberry: Leaves alternate, hairless. Thorns usually red. Berries green and smooth, but turn black when ripe. Ridged stem?
Asteraceae
Taraxacum officinale Dandelion: sepals become pappus (calyx), fused ray petals form tube at base, fused stamen filaments enclose style, milky sap, inferior ovary
Asteraceae
Senecio glabellus Butterweed
Cruciferae
Barbarea vulgaris Yellow Rocket
Cruciferae
Capsella bursa-pastoris Shepherd's Purse
Cruciferae
Thlaspi arvense Field Penny-cress
Cruciferae
Lepidium campestre Pepper Cress
Fabaceae (Pea)
Medicago lupulina Black Medick
Fabaceae
Trifolium pratense Red Clover
Fabaceae
Trifolium hybridum Alsike Clover