Royal cross (Mammillaria karwinskiana)
Description
Species to plant flowers Mammillaria karwinskiana. First described by Carl Friedrich Philipp von Martius . The Mammillaria karwinskiana covered kahenera Mammillaria the family Cactaceae. Mammillaria karwinskiana grows solitary, occasionally dividing dichotomous or basal-sprouting. The blue-green to dark green, spherical to short cylindrically shaped shoots are 7 to 10 inches high and reach just as large a diameter. The solid pyramidal warts contain milk juice . The axillae are occupied with bristles. The middle spines are missing completely or there is only one, which is pretty, white or yellowish, provided with a dark tip and has a length of 5.5 centimeters. The 3 to 8 marginal spines are pretty, straight to slightly curved, reddish and become calcareous with time. They are 0.4 to 3 inches long.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Caryophyllales
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Family: Cactaceae
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Genus: Mammillaria
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