kopsia

from The Century Dictionary.

• noun A genus of tropical Old World trees or shrubs, belonging to the natural order Apocynaceæ, or dogbane family, tribe Plumerieæ, having a hypocraterimorphous or salvershaped corolla, calyx destitute of glands,corolla-lobes twisted and overlapping to the right, opposite leaves, and white or pink flowers in short terminal cymes.