Dracaena hanningtonii
Native range: Northeast and eastern tropical Africa
Known names: Dracaena ehrenbergii
Hardiness: Best kept above 50°F
Mature Size: ~4' Tall x ~1' Wide
Light: Bright indirect light - half day sun
Water: Let soil dry out between watering then soak pot
Soil: Standard potting soil, Succulent soil
Dormancy Period: N/A
Pet-Safe: No
Plant Size: Grown in 2.5" pot
 
Silvery green cylindrical leaves with a sharp point. Juvenile form looks vastly different than a mature plant but will take several years to grow to the mature form, which forms much longer, still, upright leaves. 
Let water completely dry between watering then completely soak the rootball for several hours.