Dendrobium sanderae var. luzonicum

This species is native to the mountainous region of Central Luzon in the Philippines growing in tropical pine forests. 

It blooms with clusters of large white flowers with purple striations near the lip. This variety features a larger lip with more green hues, the striations may be more pronounced from the var. major influence. These are seed grown plants and characteristics may differ from plant to plant. 

Grow in bright-indirect light, high humidity, and warm temperatures. Reduce watering the fall and winter for a drier winter rest. 

Photo taken by Manote Quahphanit (https://orchidroots.com/display/photos/orchidaceae/58993/?role=pub)