1. Motile
1.1. One Cell
1.1.1. Genus Amoeba
1.1.2. Genus Spirogyra
1.2. More than one cell
1.2.1. Can interact in an aquatic environment
1.2.1.1. Hard Shell
1.2.1.1.1. Attached to a surface
1.2.1.1.2. Not attached to a surface
1.2.1.2. No Hard Shell
1.2.1.2.1. Attached to a surface
1.2.1.2.2. Not attached to a surface
1.2.2. Can interact in an aerobic environmnet
1.2.2.1. Depends on food from aquatic areas
1.2.2.1.1. Willet (Tringa semipalmata)
1.2.2.1.2. Sanderling (Calidris alba)
1.2.2.1.3. Mallard (Anas platyrhynchos)
1.2.2.2. Does not depend on food from aquatic areas
1.2.2.2.1. Two-legged animal
1.2.2.2.2. Not a two-legged animal
1.2.3. Purely interacts in a ground environment
1.2.3.1. Appendages
1.2.3.1.1. Western Gray Squirrel (Sciurus griseus)
1.2.3.1.2. Woodlouse Spider (Dysdera crocata)
1.2.3.1.3. Red-shouldered Bug (Jadera haematoloma)
1.2.3.1.4. Genus Stagmomantis
1.2.3.2. No Appendages
1.2.3.2.1. Garden Arion (Arion hortensis)
2. Non-motile
2.1. Trunk
2.1.1. No Pine cones or fruit
2.1.1.1. Norfolk Island Araucaria (Araucaria heterophylla)
2.1.1.2. Scaly Tree Ferns (Family Cyatheaceae)
2.1.1.3. Mountain Cabbage Tree (Cordyline indivisa)
2.1.2. Has Fruit
2.1.2.1. Possible medicinal usage
2.1.2.1.1. California Bay (Umbellularia californica)
2.1.2.1.2. Castor Bean (Ricinus communis)
2.1.2.2. No medicinal usage known
2.1.2.2.1. Edible for wildlife
2.1.2.2.2. Inedible for wildlife
2.1.3. Has Pine cones
2.1.3.1. Ponderosa Pine (Pinus ponderosa)
2.1.3.2. Bigcone Douglas-Fir (Pseudotsuga macrocarpa)
2.1.3.3. Canary Island Pine (Pinus canariensis)
2.1.3.4. Gray Pine (Pinus sabiniana)
2.1.3.5. Mountain Hemlock (Tsuga mertensiana)
2.1.3.6. Jeffrey Pine (Pinus jeffreyi)
2.2. No Trunk
2.2.1. Flowering
2.2.1.1. Edible for wildlife
2.2.1.1.1. No medicinal usage known
2.2.1.1.2. Possible medicinial usage
2.2.1.2. Inedible for wildlife
2.2.1.2.1. Possible medicinal usage
2.2.1.2.2. No medicinal usage
2.2.2. No Flowering
2.2.2.1. Edible for wildlife
2.2.2.1.1. Found in aquatic environment
2.2.2.1.2. Not found in aquatic environment
2.2.2.2. Inedible for wildlife
2.2.2.2.1. Parasitic
2.2.2.2.2. Non-parasitic