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Aphanes microcarpa (belly plant) • • • In the rose family – Rosaceae Palmately lobed leaves Leaves alternate Cardamine hirsuta • • • • • Brassicaceae Rosette forming annual Pinnately compound leaves Sausage-like fruit Little white flowers (4 petals) Capsella bursa-pastoris • • Brassicaceae: heart-shaped fruit on stalk Pinnately lobed leaves Cerastium glomeratum • • • Mouse ear shaped leaves (hairy) Hairy stems and leaves compared to Stellaria media Distance between internodes is usually shorter than Stellaria media Dichondra carolinensis • • • Creeping perennial Has rounded/kidney shaped leaves (one common name “pony’s foot” for leaf shape) Native (one of few in this lab!) Facelis retusa • • • Bicolor leaves –green top and whitish bottom Leaf has spine at tip Introduced weed Galium spp. • • • • Square stems Whorled leaves, elongate blades Covered with small hairs, so it sticks on fuzzy surfaces. White flower (4 petals) Geranium carolinianum • • • • Native geranium Palmately dissected leaf Small, purplish flower Fruits look like a crane’s bill or stork’s bill Houstonia sp. • • Very small flowering plant 4-petaled blue flowers Lamium amplexicaule • • • 2 lipped purple flowers Bracts beneath flowers clasp stem (like amplexus in amphibians) Mint family: square stems, opposite leaves Lamium purpureum • • • See L. amplexicaule for other traits Brownish/purplish leaves among flowers Purple flowers 2-lipped flowers tucked into top leaves Rumex sp. • • • Large V-shaped leaf Curly leaf margin Strong looped venation present underneath leaf Sherardia arvensis • • • Square stems Whorled leaves, broader than Galium Lavender flower (4 petals) Soliva sessilis • • • • Carrot-like leaf (deeply pinnately divided) Leaves in rosette when plant young Makes inflorescence with spiny tips when mature (fruit a bur) Sunflower family Stellaria media • • Opposite leaves Less hairy compared to Cerastium glomeratum Taraxacum sp. • • • • • Rosette forming perennial Mitotic seed production (agamospermy) Leaf pinnately divided: divisions shaped like an arrowhead Yellow inflorescence (sunflower family) Bleeds milky juice when damaged Trifolium incarnatum • • • • 3 leaflets Roadside flower (red pea-like flowers in terminal cluster) Relatively large leaves Has nitrogen fixing bacteria Rhizobium Trifolium dubium • • Yellow flower Compare to T. incarnatum Trifolium repens • • Has white flower Compare to T. incarnatum Veronica arvensis • • • Heart-shaped fruit (almost no stalk) Fruit in axil of the leaf Blue flower (4 petals) Veronica hederifolia • • • Palmate leaf Globose fruit hangs off the plant Long hair compared to V.arvensis Vicia spp. • • • • Alternate, pinnately compound leaves Legume Tendrils at the tip of the leaf Extrafloral nectaries on stipules (the brown spots) Viola spp. • • Large stipules Purplish pansy-like flower