What’s Beneficial and harmful?? - PowerPoint PPT Presentation

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What’s Beneficial and harmful??

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  1. What’s Beneficial and harmful?? “Plants & Humans”

  2. Mosses • Division of small, soft plants • Insect Repellant • Remedies for Rashes • Bio-Indicators of air pollution (monitor the health of an environment or ecosystem) • Sphagnums have antiseptic qualities and are very adsorbent. They have been used for bandages, and were important as such in the US Civil War. Sphagnum is used today in potting soil mixtures, and sometimes by itself as a rooting medium.

  3. Ferns • Vascular Plants “Lignified Plants Conduct water /Minerals threw the plant and Un-Lignified: Photosynthesis” • Stem, Leaves, Roots • Spores • Require Minimum Upkeep • Air Quality/ Oxygen Enrichment • Medicines (Oil to expel parasitic worms, jaundice, and heals wounds) • The roots, or rhizomes, of many fern species are eaten as a rich source of carbohydrates. • In nature, ferns can offer characteristics that benefit the soil and environment.

  4. Gymnosperms • Seed-Bearing Plants • “Naked Seed” (seeds are not enclosed within fruits) • Water Conservation • Perfumes & Nail Polish • Lumber • Soap • Gum • Foods

  5. Angiosperms • Flowering Plants • “Flower Plant” (seeds are enclosed within a fruit of some sort) • regular flower is radially symmetrical • irregular flower is bilateral symmetry • Nice Scents & Photosynthesis • Pollination: transfer of pollen from the anthers of a flower to the stigma of the same flower or of another flower.

  6. Harmful Plants • Giant Pitcher Plant (Most likely to eat a rat) • Western Water Hemlock (Most violently toxic plant in North America) • Monkshood (loaded with the poisonous alkaloid aconite) • Venus flytrap (Most animal-like) • Angel Trumpet (packs a powerful punch of toxins) • Mala Mujer (covered with nasty thorns; more painful than poison)