Diameter to ca. 25 cm; exumbrella smooth; tentacles typically 40 in adult (56 and 72 rarely reported), each octant having a central primary tentacle, two secondaries of intermediate size either side, and a minute tertiary near each side of octant arising beneath rhopalar lappet (i.e. not from a cleft between the lappets); clefts between tentacular lappets uniform in depth; oral arms narrow, V-shaped in section, edges frilled, terminal region not spirally coiled (?); very long, length up to ca. 15 times bell diameter. Radial septa (as seen from below) thin, constant in width, not wider at inner end; outer 1/3 to 1/4 following broad curve (rather than merely bending as in other species).
Coloration greatly varied. Some specimens, and/or populations, temporarily or permanently entirely lack radial lines on exumbrella, but others have them. Some are colorless, transparent, whitish yellowish or orange, with mouth-arms of the same colors but not in all specimens the same color as the bell; lappets same color as ground color of bell. Others have variously developed radial streaks, from small radial dashes near centre, to nearly entire radial stripes (? not meeting near centre to form isosceles triangles); pattern possibly never so strongly developed as in some Chrysaora hysoscella and Chrysaora plocamia. Marginal tentacles colorless, yellow, red, or of intermediate color.
Sting painful to severe, medical attention may be needed.