Turfs can be morphologically highly variable over geographic scales and even within species on local scales and can be difficult to identify in terms of the constituent species.
tˈɜːfs kæn biː mˌɔːɹfəlˈɑːdʒɪkli hˈaɪli vˈɛɹɪəbəl ˌoʊvɚ dʒˌɪəɡɹˈæfɪk skˈeɪlz ænd ˈiːvən wɪðˌɪn spˈiːsiːz ˌɔn lˈoʊkəl skˈeɪlz ænd kæn biː dˈɪfɪkəlt tʊ aɪdˈɛntᵻfˌaɪ ɪn tˈɜːmz ʌvðə kənstˈɪtʃuːənt spˈiːsiːz.