ID Keys

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	A tree generally has a single upright stem and reaches a height of 20 feet. Some species are shrubs in harsh climates and trees in moderate climates.
	Shrubs are low branching, suckering, or have multiple stems and do not reach 20 feet in height.
	Most people recognize brambles, which include roses and blackberries.
	Vines require some extra help for support. They hold on to the support by twining, growing tendrils, or aerial roots.

	Cacti do have leaves - they are reduced to spines.
	Palms are common in warm regions.
	Yuccas can be found in many loacations but are more common is deserts.
	Slender or Scaly leaves can be found on pines, junipers, and other genera.
	Broadleaf includes genera with narrow leaves, such as the willows.