How to display processes in a tree view like solaris's ptree

# pstree --help
pstree: unrecognized option '--help'
Usage: pstree [ -a ] [ -c ] [ -h | -H PID ] [ -l ] [ -n ] [ -p ] [ -g ] [ -u ]
              [ -A | -G | -U ] [ PID | USER ]
       pstree -V
Display a tree of processes.

-a, --arguments     show command line arguments
-A, --ascii         use ASCII line drawing characters
-c, --compact       don't compact identical subtrees
-h, --highlight-all highlight current process and its ancestors
-H PID,
--highlight-pid=PID highlight this process and its ancestors
-g, --show-pgids    show process group ids; implies -c
-G, --vt100         use VT100 line drawing characters
-l, --long          don't truncate long lines
-n, --numeric-sort sort output by PID
-N type,
--ns-sort=type      sort by namespace type (ipc, mnt, net, pid, user, uts)
-p, --show-pids     show PIDs; implies -c
-s, --show-parents show parents of the selected process
-S, --ns-changes    show namespace transitions
-u, --uid-changes   show uid transitions
-U, --unicode       use UTF-8 (Unicode) line drawing characters
-V, --version       display version information
-Z,
--security-context   show SELinux security contexts
PID    start at this PID; default is 1 (init)
USER   show only trees rooted at processes of this user