Which is the tallest self-supporting moss species found in New Zealand that usually grows to a height of 60 cm?

Dawsonia superba

The correct answer is Option (2) - Dawsonia superba

The largest bryophyte, Dawsonia, is classified as a moss and is categorized within the family Polytrichaceae. These mosses are renowned for their towering growth and thicker leaves compared to other common moss varieties. Their impressive height is attributed to their acrocarpous nature. Some Dawsonia species can reach heights of up to 19 inches. Dawsonia is a genus of acrocarpous mosses, belonging to the order Polytrichales. Alongside other members of this order, Dawsonia mosses exhibit taller stature and thicker leaves. Interestingly, their sporophytes possess conducting systems analogous to those found in vascular plants. Dawsonia Superba is distributed across New Zealand, Australiaetc..