昼顔

Literally, “daytime face”, from 昼(ひる) (hiru, “daytime noon”) + 顔(かお) (kao, “face”). The kao changes to gao as an instance of rendaku (連濁).

• (Tokyo) ひるがお [hìrúgáó] (Heiban – [0])^[1]
• IPA^(key): [çiɾɯ̟ɡa̠o̞]

昼(ひる)顔(がお) or 昼顔(ヒルガオ) • (hirugao) ^{←ひるがほ (firugafo)?}

1. false bindweed (Calystegia japonica)

• As with many terms that name organisms, this term is often spelled in katakana, especially in biological contexts (where katakana is customary).

• ヒルガオ科(カ) (hirugaoka)

• 朝顔(あさがお) (asagao)
• 夕顔(ゆうがお) (yūgao), 夜顔(よるがお) (yorugao)