They are different than other Vitaceae in that their petals are joined at the tip and not attached at the base causing them to fall together forming a calyptra.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

Vitamin K: A fat-soluable vitamin essential Purple Grape: Purple grapes belong to the for the clotting of blood, vitamin K also helps Vitaceae family and are grown and harvested promote strong bones. worldwide.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Vitaceae.    From Wordnik.com.  [Chapter 7] Reference

Vitaceae).    From Wordnik.com.  [MyLinkVault Newest Links] Reference