In Genesis 2:6, there is a verb which seems to be a hiphil verb (3sg fem.) but it doesn't fit the normal pattern of conjugation.

> 
> וְאֵד יַעֲלֶה מִן־הָאָרֶץ וְהִשְׁקָה אֶת־כָּל־פְּנֵי־הָאֲדָמָה׃
> ---------------------------------------------------------------
> 
> 
> And a mist went up from the earth ,and watered the whole face of the ground.
> 
> 
> 

The beginning הִ and the feminine ending kamatz + ה both tip me off to this being a hiphil verb. This is consistent with the meaning of שָׁקָה in the hiphil binyan, which is, "to water". However, with hiphil verbs there is normally a yod between the first and second root letter. We don't see that here. In fact, the vowel pattern seems to be irregular.

Is my parsing of this verb correct (3sg feminine perfect hiphil)? Is the verb simply irregular? If so, where can I find the full conjugation?