Mammillaria borwigii
Gartenflora 76: 338, fig. 1927 as Mamillaria
Family
Cactaceae
Genus
Species
Mammillaria borwigii
Author
J.A.Purpus
Chinese genus
乳突球属
Chinese name
-
Primary
Accepted
DescriptionEdit description
Flowers
Large ( 4-7 cm in diameter) glossy yellow , they have red filaments and a red centre.
Spines
C. borwigii pass several stages of development in which their appearance changes very much
Stem
Globose, ovoid, or short cylindrical dark green to pale blue grey, 5-10 cm tall, 5-8 cm in diameter.
Radial Spines
Equal at first up to 18 mm long, as the the plant ages develops two types of radial spines, lower radiant, stiff, horn-coloured and upper, thinner, flexible in a bundle.
Fruits
Green, 15-20 mm long.