ɪn spɹˈɪŋ ɪt bˈɛɹz lˈɑːɹdʒ, sˈɪŋɡəl, bˈoʊlʃˈeɪpt lˈɛmənjˈɛloʊ flˈaʊɚz ɪn daɪˈæmɪɾɚ, ðɪ ˈoʊvɚɹi pjuːbˈɛsənt, ðə tˈuː tə fˈoːɹ kˈɑːɹpəlz wˈaɪt, pˈɪŋk ɔːɹ jˈɛloʊ, ænd ðə stˈeɪmɛn fˈɪləmənts jˈɛloʊɡɹˈiːn.
In spring it bears large, single, bowl-shaped lemon-yellow flowers  in diameter, the ovary pubescent, the two to four carpels white, pink or yellow, and the stamen filaments yellow-green.