It is semi-evergreen (in cooler climates), with bipinnate fronds  tall by  broad, with 8–20 pairs of pinnae.
ɪɾ ɪz sˈɛmaɪˈɛvɚɡɹˌiːn ɪn kˈuːlɚ klˈaɪməts, wɪð baɪpˈɪneɪt fɹˈɑːndz tˈɔːl baɪ bɹˈɔːd, wɪð ˈeɪt twˈɛnti pˈɛɹz ʌv pˈɪniː.