Useful Plants - An Introduction to Economic Botany: Dichotomous key: step 94: "Direct to main groups"

1. Vegetables of temperate zones. See also Chapter Vegetables of temperate regions.

Step 22. Vegetables of temperate regions

2. Vegetables from tropical regions. See also Chapter Tropical vegetables.

Step 30. Tropical vegetables

3. Cereals. See also Chapter Grain crops and pseudo-cereals.

Step 46. Cereals and pseudo-cereals

Step 12. Pulses and pods 1

5. Plants with edible roots. See also Chapter Root crops.

Step 5. Root crops 1

6. Fruits of temperate zones. See also Chapter Fruits of temperate regions.

Step 32. Fruit from temperate regions

7. (Sub)tropical fruit. See also Chapter Tropical and subtropical fruits.

Step 37. (Sub)tropical fruits

8. Cucumbers, melons, marrows, squashes and gourds. See also Chapter Cucumbers, melons, marrows, and gourds.

Step 16. Cucumbers and gherkins

9. Citrus fruits.

Step 38. Citrus fruits 1

Step 52. Kitchen herbs and Spices

Step 64. Edible nuts 1

Step 69. Sugar producing plants

13. Fibre producing plants.
See also Chapter Fibre plants.

Step 89. Fibre plants 1

14. Oil producing crops. See also Chapter Oil producing plants.

Step 86. Oil producing plants 1

15. Flavourings and dyes. See also Chapter Spices and flavourings and Dye and tanning material.

Step 71. Dyes, flavourings, fragances and tannins

16. Plants with stimulants and for beverages. See also Chapters Stimulants and Plants for beverage and spirits.

Step 81. Stimulants 1

17. Tannines, gum, resin and wax. See also Chapter Dye and tanning material.

Step 78. Tannins, gum, resins and waxes

18. Plants used for medicinal purposes. See also Chapter Medicinal plants.

Step 79. Medicinal plants

19. Rubber producing trees. See also Chapter Rubber producing plants.

Step 85. Rubber producing plants

Step 92. Construction material