Coryphantha scheeri var. robustispina

Coryphantha scheeri var. robustispina NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports — Coryphantha scheeri var. robustispina ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

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Coryphantha robustispina grows mostly solitarily with an ovoid shape. It has a clean greyish-greenish color and reaches 5–9 cm tall and 5–15 cm in diameter although larger plants are frequently found. The areolas are oval or cylindrical in shape with a deep furrow and one or two nectar glads. It has 1-4 central spines curved or hooked. They are white or grey with the tip being darker. They measure between 1 and 5 cm in length. The 6-16 radial spines are off-white between 1 and 3 cm in length. Their flowers are golden yellow, pale green or opaque yellow. The seed pods are cylindrical and green up to 5 cm.