One case of this being Leguminosae species that have indeterminate inflorescence
Anthela of spikelets (or anthelodium): crateriform indeterminate inflorescence, with the terminal spikelet and the short and distal branches hidden among the long and proximal ones, which overtop them.
Corymb of spikelets (or corymbodium): indeterminate inflorescence with the primary branch spikelets arranged like the flowers of a corymb (Rua, 1999).
Umbel of spikelets (or sciadodium or umbelliform inflorescence): indeterminate inflorescence, with the spikelets disposed like the flowers of an umbel (Rua, 1999).
Capituliform inflorescence (or capitate inflorescence or cephalodium): indeterminate inflorescence, similar to a capitulum or head, due to a pronounced shortening of the internodes on the main axis and branches of different order.
Although indeterminate inflorescence apical meristems technically could continue as meristems indefinitely, in practice they usually eventually decline in activity.
Briggs and Johnson (1979) introduced terminology in response to a problem with the morphological definitions of determinate and indeterminate inflorescence axes.
Indeterminate inflorescences have continuous prolonged activity of the inflorescence apex, which produces flowers in acropetal succession on each axis, with the oldest ones at the base.
A single gene (TELl) causes terminal flower formation in normally indeterminate inflorescences of Arabidopsis.
The indeterminate inflorescence known as a "capitulum" (sometimes "head") is most often invoked as one of the defining characteristics of the very highly evolved family, the Asteraceae (Harris & Harris, 1994; Jeffrey, 1978).
A capitulum is usually defined as an indeterminate inflorescence that matures in an acropetal, centripetal, or racemose (Cronquist, 1977) fashion where all of the flowers or florets are sessile and are attached to a receptacle that may be wide and flattened, elongated, convex, concave, or somewhere in between.
It is obvious that condensation of an elongated indeterminate inflorescence to a capitulum has occurred independently numerous times in the evolution of the Asteridae and other taxa, an example of widespread convergent evolution.