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