1. Intro to plants

2. Plants and their Uses Food Roots (carrot, beet, peanut)
Stems (celery, asparagus)
Underground stems (potato, onion)
Fruits and seeds (apple, lentil)
Flowers (broccoli, cauliflower)
Leaves (lettuce, spinach, tea, basil)

3. Food

4. Medicinal Digitoxin (foxglove leaves) congestive heart failure
Aspirin (White willow bark)
– pain and fever
Aconite (Monkshood roots)
Vincristine (rosy periwinkle)
- childhood leukemia

5. Herbal Ginseng – overall well being Ginkgo biloba – memory enhancement
Echinacea
– immune support

6. Textile
Cotton
Hemp
Flax

7. Insecticides Rotenone (right) from derris plant Pyrethrum (below)
from pyrethrum flowers

8. Wood, Pulp and Paper
Oak
Pine
Walnut

9. Rubber From the rubber plant/trees
In diagram rubber tapping from a pararubber tree in Amazon rain forest

10. Gums and Resins From sap of coniferous trees
Used in nail polish, varnish, adhesives, perfume…
Eg. Carnauba palm leaves – car and furniture polish

11. Cosmetic Jasmine Vanilla Spearmint Aloe
Eg. Euphorbia cerifera – soft wax for lipstick

12. Erosion
Roots control erosion where soil is uncovered or sparsely covered
Form mat to keep soil in place

13. Vascular vs. Non Vascular Plants
Vascular Plants have special tissues for transporting water and nutrients (xylem and phloem)
 have roots, stems and leaves
E.g. Ferns, flowering plants, conifers

14. Vascular vs. Non Vascular Plants
Nonvascular plants have no vascular system (xylem and phloem) and  no roots stems or leaves.
e.g. Liverwort mosses and algae

15. Angiosperms vs. Gymnosperms
Gymnosperms - cone bearing plants
Seeds produced within cones

16. Angiosperms vs. Gymnosperms
angiosperm – flowering plants
Seeds produced in ovule of flower/fruit

17. Monocot vs. Dicot – two forms of angiosperms

18. Plant Organs
Organs are comprised of tissues that together perform a specific function
Plant organs include:
Roots
Stem
Leaves
Flowers

19. Roots Anchor plants in soil – preventing erosion
Absorb water and minerals
Site of storage

20. Stems Hold leaves and expose them to sun Hold flowers
Transport materials from roots to leaves
Site of storage

21. Leaves
Site of photosynthesis
Storage
Gas exchange (stomata)

22. Flowers
Reproduction