1. Slender aspen native to North America
   - American quaking aspen, Populus tremuloides

Type of: aspen

• economy class
• economy of scale
• ECOSOC
• ECOSOC commission
• ecosphere
• ecosystem
• ecoterrorism
• ecotourism
• ecotown
• ecotoxicology
• ecotype
• ecovillage
• ecphonesis
• ecrevisse
• ecru
• ecstasy
• ecstatic
• ecstatic state
• ecstatically
• ECT
• ectasia
• ectasis
• ecto-
• ectoblast
• ectoderm