Cherimoya trees bear very pale green, fleshy flowers. "Sorbus aucuparia" (mountain ash), Cherimoya fruit, "Lamprocapnos" (bleeding heart), and sweet pea. Mark Twain called the cherimoya "the most delicious fruit known to men". Cherimoya seeds are poisonous if crushed open. The island of Madeira is famous for the quality of its Cherimoya fruits. Mark Twain once described the "cherimoya" as "the most delicious fruit known to men". The indigenous inhabitants of the Andes say the cherimoya cannot stand snow. It is not as good as the sugar apple or the cherimoya. This species is closely related to the cherimoya, the sugar-apple and other "Annonas". By 1918, Cherimoya had been relocated to J.B. Joel's Childwickbury Stud in St. Albans, Hertfordshire. Cherimoya was euthanised in October 1927. Cherimoya pollen has a short life, but it can be extended with refrigeration. Cherimoya was retired in 1913 to Broderick Cloete's stud at Hare Park. Cherimoya did likewise when she won The Oaks in her only start. It is in the same genus, "Annona", as cherimoya and is in the Annonaceae family.