Crassula expansa subsp. filicaulis after flowering

Yellower leaves on Crassula expansa subsp. filicaulis plants growing in the open are often the lower ones ducking the brunt of the rays. The sun brings the deeper red to the upper ones. Green may be more seen among the shy leaves, in winter, or for certain in a container in shade.

The uppermost shorter leaves don't have the upper surface grooves sometimes seen on mature leaves. They still bulge with the plant equivalent of baby fat (Mustart, et al, 1997; iNaturalist).