Presentation Transcript

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

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