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Plant Identification

Plant Identification. Why do we identify plants?. DICOT. Leaves with net-like veins Petals in multiples of four or five Vascular bundles form rings in stems. MONOCOT. Leaves with parallel veins Petals in multiples of three Vascular bundles in stems scattered. Plant Parts.

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Plant Identification

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  1. Plant Identification

  2. Why do we identify plants?

  3. DICOT • Leaves with net-like veins • Petals in multiples of four or five • Vascular bundles form rings in stems MONOCOT • Leaves with parallel veins • Petals in multiples of three • Vascular bundles in stems scattered

  4. Plant Parts • Important: • Shoot • Root • Node • Internode • Leaf parts (more on those next)

  5. Compound Leaves OR PINNATE

  6. Leaf Monster

  7. Grass Leaf Part Names

  8. Inflorescence Types CORYMB CYME HEAD http://www.vplants.org/plants/glossary/plate08.html

  9. Taxonomy Scientific name

  10. Scientific Names: Genus species Italics or Underlined lower case Capitalized

  11. Plant Families You Need to Know

  12. Typhaangustifolia Narrow-leafed cattail Typhaceae • Leaves: • Strap-like • Helical twist • Flowers: • Unisexual • Staminate above carpellate Typhalatifolia Broad-leafed cattail INVASIVE

  13. Juncaceae • Stems: • Round • Leaves: • Usually only at the base • Two-ranked • Ligules absent, Auricle present • Flowers: • - Appear to come from the side of the stem (floral bract sticks up) Juncuseffusus Common reed

  14. Cyperaceae • Stems: • Triangular (trigonous) • Leaves: • Three-ranked • No Ligules Cyperusesculentus Yellow nutsedge

  15. Poaceae • Stems: • Round or oval • Leaves: • Alternate • Open tubular sheaths • Usually have ligules • Flowers: • - Spikelets Leersiaoryzoides Rice cutgrass

  16. Fabaceae • Leaves: • Compound • Stipulate • Margins entire • Flowers: • Bilateral symmetry • “Banner” petals & “wing” petals Amorphafruticosa False indigo Sweet Pea Flower- Example of a typical “fab” flower

  17. Asteraceae • Leaves: • - Highly variable • Flowers: • Compound “heads” • Ray flowers & Disc flowers Helianthus angustifolius Swamp sunflower

  18. Aster Flowers

  19. Anacardiaceae • Leaves: • Usually alternate • No stipules • Simple, trifoliate, or oddly pinnate Toxicodendronradicans Poison ivy Toxicodendronvernix Poison sumac

  20. Leaf Shapes http://www.paulnoll.com/

  21. Margins

  22. Grass

  23. Life Cycles • Annual • Biennial • Perennial

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