Astrophytum Myriostigma Quadricostatum
Astrophytum myriostigma Quadricostatum. Small globe with usually 4 prominent ribs, spines absent, covered with small white spots. Similar to the Astrophytum myriostigma, however, this rare cactus has 4 instead of 5 ribs.
Description: Astrophytum myriostigma quadricostatum was first described in 1841 by M. Mittler who wrote “The body of the plant is of elongated round form and has four ribs”.
This form deviates from the well-known typical form for having four ribs instead of five.
Stem: Quadrangular to almost spherical, the plants become shortly columnar with age. The stems are smooth and can be over 90 cm tall and 5-10 (-20) cm in diameter.
Spines: None.
Ribs: 4.
Flowers: Arise from the areole at the tip of the stem on mature plant. up to 5 cm wide (or more), pale-yellow, shining-silk, unlike the 5-ribbed plant.
Blooming season: Spring or late summer, They take up to 6 years to bloom.
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