Plant Biology


Leaf Characteristics

Kinds: scale-like, broad leaf, needle-like


Arrangement: opposite, alternate, whorled, rosette


Forms: simple, compound, pinnate, palmate


Margin: entire, serrate, toothed, lobed


Shapes: linear, lanceolate, ovate/oblong, cordate, elliptic



Tree Examples

Virtual Tree ID Key

New Paltz High School Plant List

Activity: Out of your Tree Play


Ecological Succession

Ecological succession is the process by which organisms occupy a site and gradually change environmental conditions by creating soil, shade, shelter, or increasing humidity

Ecological Development- environmental modification by organisms which lead to habitats of greater and greater complexity.

Activity: Time Lapse