ðiːz kæn biː tɹaɪˈæŋɡjʊlɚ ɔːɹ sɪlˈɪndɹɪkəl, ænd lˈaɪk ˈɔːl plˈænts ɪn ɪts fˈæmɪli, ɐpˈɪɹ ɪn ˈɑːpəzˌɪt pˈɛɹz ɔnðə ʃɹˈʌbz bɹˈæntʃᵻz.
These can be triangular or cylindrical, and like all plants in its family, appear in opposite pairs on the shrubs' branches.