1. Aphanes microcarpa (belly plant)
In the rose family –Rosaceae
Palmately lobed leaves
Leaves alternate

2. Cardamine hirsuta Brassicaceae Rosette forming annual
Pinnately compound leaves
Sausage-like fruit
Little white flowers (4 petals)

3. Capsella bursa-pastoris
Brassicaceae: heart-shaped fruit on stalk
Pinnately lobed leaves

4. Cerastium glomeratum Mouse ear shaped leaves (hairy)
Hairy stems and leaves compared to Stellaria media
Distance between internodes is usually shorter than Stellaria media

5. 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!)

6. Facelis retusa Bicolor leaves –green top and whitish bottom
Leaf has spine at tip
Introduced weed

7. Galium spp. Square stems Whorled leaves, elongate blades
Covered with small hairs, so it sticks on fuzzy surfaces.
White flower (4 petals)

8. Geranium carolinianum
Native geranium
Palmately dissected leaf
Small, purplish flower
Fruits look like a crane’s bill or stork’s bill

9. Houstonia sp.
Very small flowering plant
4-petaled blue flowers

10. Lamium amplexicaule 2 lipped purple flowers
Bracts beneath flowers clasp stem (like amplexus in amphibians)
Mint family: square stems, opposite leaves

11. Lamium purpureum See L. amplexicaule for other traits
Brownish/purplish leaves among flowers
Purple flowers 2-lipped flowers tucked into top leaves

12. Rumex sp. Large V-shaped leaf Curly leaf margin
Strong looped venation present underneath leaf

13. Sherardia arvensis Square stems Whorled leaves, broader than Galium
Lavender flower (4 petals)

14. 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

15. Stellaria media Opposite leaves
Less hairy compared to Cerastium glomeratum

16. 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

17. Trifolium incarnatum 3 leaflets
Roadside flower (red pea-like flowers in terminal cluster)
Relatively large leaves
Has nitrogen fixing bacteria -Rhizobium

18. Trifolium dubium
Yellow flower
Compare to T. incarnatum

19. Trifolium repens
Has white flower
Compare to T. incarnatum

20. Veronica arvensis Heart-shaped fruit (almost no stalk)
Fruit in axil of the leaf
Blue flower (4 petals)

21. Veronica hederifolia Palmate leaf Globose fruit hangs off the plant
Long hair compared to V.arvensis

22. Vicia spp. Alternate, pinnately compound leaves Legume
Tendrils at the tip of the leaf
Extrafloral nectaries on stipules (the brown spots)

23. Viola spp.
Large stipules
Purplish pansy-like flower