From WordNet (r) 2.0 (August 2003) [wn]:
Ipomoea
n : morning glory [syn: Ipomoea, genus Ipomoea]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Ipomoea \Ip`o*m[oe]"a\ ([i^]p`[-o]*m[=e]"[.a]), prop. n. [NL.
"Named, according to Linn[ae]us, from Gr. 'i`ps, 'ipo`s, a
bindweed [which it is not], and "o`moios like." --Gray.]
(Bot.)
A genus of twining plants with showy monopetalous flowers,
including the morning-glory, the sweet potato, and the
cypress vine.
[1913 Webster]