ðə flˈaʊɚz ɑːɹ pɹədˈuːst ɪn klˈʌstɚz ʌv tˈuː tə fˈaɪv ɪnðə lˈiːf ˈæksɪlz; ðeɪ ɑːɹ tˈuːbjʊlɚ, ɹˈɛdɪʃ bɹˈaʊn, wɪð fˈaɪv nˈæɹoʊ lˈoʊbz dʒˈɔɪnd æt ðə tˈɪp; flˈaʊɚɹɪŋ ɪz ɪn spɹˈɪŋ tə sˈʌmɚ.
The flowers are produced in clusters of two to five in the leaf axils; they are tubular, reddish brown, with five narrow lobes joined at the tip; flowering is in spring to summer.