bright, shining, sparkling, dazzling, brilliant, glistening

Here’s some interesting etymology on bleeding heart:

The scientific name, Lamprocapnos spectabilis, can be broken up and translated: The Greek term “Lampro-” translates to words such as “bright”, “shining”, “sparkling”, “dazzling”, “brilliant”, or “glistening”, while the Greek term “-capnos” translates to “smoke”. The Greek term “spectabilis” translates to words such as “spectacular”, “showy”, “remarkable”, or “worth seeing”. The literal translation means “Spectacular sparkling smoke”.

Clearly the Greek namers were smitten with bleeding heart.

bleeding heart (Lamprocapnos spectabilis)