One of my cacti, the bishop's cap, has started blooming again.
The bishop's cap (Astrophytum myriostigma) is a species of the genus Astrophytum in the cactus family (Cactaceae). The specific epithet myriostigma is derived from the Greek words "μύριος" (myrios) for countless and "στίγμα" (stigma) for point, stain. Other trivial names besides "Bishop's Hat" are "Mitra" and "Bonete de Obispo".
Astrophytum myriostigma is spherical to cylindrical in habit. The shoots are covered with dense clumps of white trichomes and therefore appear whitish. They reach a height of 10 to 25 centimeters and a diameter of 10 to 18 centimeters. On the usually 5 broad triangular ribs there are round areoles at a distance of 10 to 20 millimeters. Thorns are absent.
The 6 to 7 cm long flowers are yellow with a red throat. The sepals are black-tipped, the petals serrated. The stamens and the style are yellow, the scar is usually 7-part. The elongated, round, green fruits burst open in the shape of a star. (Wikipedia)