Is there a rock music genre with more sub-genres than Metal?

Heavy Metal, Black Metal, Death Metal, Thrash Metal, Progressive Metal, Viking Metal, Speed Metal, Power Metal, Hair Metal, Glam Metal, Nu Metal, Doom Metal, Electronic Metal, Folk Metal, Gothic Metal, Traditional Metal, Orchestral/Symphonic Metal, War Metal, Electro Metal, Industrial Metal, Death 'n Roll, Dark Metal, Ethno Metal, Grindcore, Horror Metal, Mathmetal [intriguing!], Ambient Metal, Atmospheric Metal, Chaoscore, Cyber Metal, Dramatic Metal, Epic Metal, Experimental Metal, Fun Metal, Groove Metal, Indie Metal, Medieval Metal, Pop Metal, Skaldic Metal, Sludge Metal, Stoner Metal, US-Metal, Wave Metal and Western Metal.