The rowgroup role - ARIA Reference Guide

Composites
Represent containers for navigating interactive descendants.
Landmarks
Represent top-level sections of a page, relevant to a specific purpose, that a user may want to scan for quickly and could appear in a site map or table of contents.
Live Regions
Represent dynamic content or announcements, typically updated as a result of an external event when user focus may be elsewhere.
Structures
Represent non-interactive parts of a page that organize content into coherent units.
Widgets
Represent focusable, interactive elements.
Windows
Represent inner windows that are children of the main web document.

WAI-ARIA spec HTML-ARIA spec

Structure(opens in new window)Required Context(opens in new window)

Description

A structure containing one or more row elements in a tabular container.

Allowed Content

This role requires specific descendant roles. These may include row roles.

Required Context Roles

table
grid
treegrid

HTML Elements with Implicit ARIA Role

tbody
tfoot
thead

Allowed HTML Elements

tbody (role attribute unnecessary)
tfoot (role attribute unnecessary)
thead (role attribute unnecessary)
div, span, p, other elements that can receive any role