Gymnocalycium saglionis (F.Cels) Britton & Rose

Origin and Habitat: Gymnocalycium saglionisSN|12116]]SN|12116]] has a wide range and is locally abundant in Argentina (Jujuy, Catamarca, La Rioja, Salta, San Juan, Tucumán). It was Originally found in Dept. Trancas, ca. 12 km al norte de Tapia en la ruta 9 a Vipos, 700 m, Tucumán.
Altitude range: 240 to 2,600 metres above sea level.
Habitat and Ecology: This cactus grows on rocky hills within monte and chaco habitats together with Echinopsis leucanthaSN|8246]]SN|8246]], and Trichocereus terscheckiiSN|8746]]SN|8746]]. This species is common and abundant. It is present in several protected areas and there are no majorare no threats affecting it.

Synonyms:

• Gymnocalycium saglionis (F.Cels) Britton & Rose

Common Names include:
ENGLISH: Giant Chin Cactus

Description: Gymnocalycium saglionisSN|12116]]SN|12116]] is a solitary barrel cactus, rather flattened, often very large, with long spreading and sometimes recurved spines. They are a rich brown and form a pleasing contrast against the grey green body.

Stem: Flattened globose to shortly cylindrical more or less flattened up to 30 (40) cm in diameter, 15-30 cm tall occasionally up to 90 cm tall, dull-green or blue-green. Apex spineless.
Ribs: 10-32 according to the size of the plant, low, very broad, sometimes 4 cm. long, separated by wavy intervals, divided into large, low, rounded tubercles.
Areoles: About 2 to 4 cm apart, large, felted when young.
Spines: 8 to 10 on small plants but on old plants often 15 or more, 3-4 cm long, yellowish-brown, reddish or black becoming grey with time which contrast well against the green body at first ascending, afterwards more or less curved outward.
Central spines:1-3 almost straight
Radial spines: 10-15 bent against the stem.
Flowers: Broadly funnelform, white or pale pinkish, with reddish throat up to 3-4 cm long, 2-3 cm in diameter, with a very short flower’s tube; inner perianth-segments spatulate, acute; scales of the ovary nearly orbicular, rounded, with a scarious margin. The flowers forms a crown on the plant apex and have a hard time coming through the dense mass of spines.
Blooming season: Appearing repetitively during the growing season.
Fruit: Red, globular.

Gymnocalycium saglionis (llifle.com)

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