Is anyone else a little disappointed the Widow's grenades aren't a default? Though I guess we knew that since the augment names got revealed…
Major Augments:
Widow's Bite: Melee attacks have a chance to trigger a web explosion. Melee kills on cocooned enemies can overcharge your health.
Hatchling: Web explosions summon a friendly Deathspinner to fight for you.
Web Spinner: A web explosion temporarily adds a slowing field around you.
Tangled Web: All Normal and Special enemies in the web explosion are cocooned in place, while Elite enemies are slowed.
Minor Augments:
Haste: Decrease Widow's Wine's cooldown.
The Wide Web: Increases the web explosion's effective radius.
Golden Orb Silk: Increase the duration of the webbing effect.
Sticky Grenade: Thrown explosive Lethal Equipment will also cover surviving enemies in spider webs.