How can I list only the directories present in a directory using ls?

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Is there any option with 'ls' command that I see only the directories?

I have a directory with a lot of files but only a few directories.

To get a list of only the directories, what I do is this

ls -l | grep "^d"

I know I can alias it to make it faster, but is there some easier way of doing this that I do not know about?

I checked man ls, but did not find any such flag there.

Also, ls -d displays only a ., nothing else.