  An investigation based on data from the spatially complete 2MASS Survey
reveals that a remarkable burst of clustered star formation is taking place
throughout the south-east quadrant of the Rosette Molecular Cloud. Compact
clusters are forming in a multi-seeded mode, in parallel and at various places.
In addition, sparse aggregates of embedded young stars are extensively
distributed. In this study, we report the primary results and implications for
high-mass and clustered star formation in giant molecular clouds. In
particular, we incorporate for the first time the birth of medium to low-mass
stars into the scenario of sequential formation of OB clusters. Following the
emergence of the young OB cluster NGC 2244, a variety of manifestations of
forming clusters of medium to high mass appear in the vicinity of the swept-up
layer of the H{\small II} region as well as further into the molecular cloud.
The embedded clusters appear to form in a structured manner, which suggests
they follow tracks laid out by the decay of macroturbulence. We address the
possible origins of the turbulence. This leads us to propose a tree model to
interpret the neat spatial distribution of clusters within a large section of
the Rosette complex. Prominent new generation OB clusters are identified at the
root of the tree pattern.
