Cerastium is a genus of annual, winter annual, or perennial plants belonging to the family Caryophyllaceae. They are commonly called mouse-ear chickweed. Species are found nearly worldwide but the greatest concentration is in the northern temperate regions. There are about 200 species. A number are common weeds in fields and on disturbed ground.
Can we infer the following?
There are over 100, but less than 1000, species of Cerastium genus plant species.

Pick from: - Yes. - It's impossible to say. - No.
The answer is:
Yes