Curio rowleyanus 
Native range: Uruguay, Brazil
Known names: String of Pearls, Senecio rowleyanus
Hardiness: Best kept above 40°F
Mature Size: ~3' Long
Light: Bright, indirect light, morning sun, half-day sun
Water: Water once soil is dry, but not bone dry.
Soil: Fast draing, coarse potting soil with added pumice or perlite. 
Dormancy Period: N/A
Pet-Safe: Yes
Plant Size: Grown in 2.5" pot
 
Round leaves on easy-to-snap stems. Related to daisies, and the white fluffy flowers will scent the room when i bloom. String of Pearls are naturally a sprawling plant that can be found growing under shrubs. When cultivating in pots they should be provided with water more-often than one would assume for succulents. Their root system is fairly shallow and can't keep up with providing water to the entire plant fast enough so frequent watering in well-draining soil is best. Avoid hot afternoon sun.