Neowerdermannia chilensis Backeb.

국표에 없다.

Origin and Habitat: Neowerdermannia chilensis is found at higher elevations in the Andean precordillera in northern Chile (Iquire, Arica and Parinacota) to the border with Argentina and in Peru (Moquegua). Extent of occurrence less than 5,000 km2. It is known in less than 5 locations. Possibly no more than five locations.
Altitude range: This species grows at elevations of 3,000 to 4,100 metres above sea level.
Habitat and Ecology: The species grows in Andean shrubland on rocky and sandy soils on steep slopes. The species is not very noticeable, reason why it appears scarce, however, it is wide ranging, abundant, especially in dense thickets, and stable. There are no major threats, but part of the range in Chile is potentially threatened by mining. This species reproduces only by means of seeds, which fall from the fruit through a basal pore (hole) that opens by the detachment of it from the areola. The seeds generally remain close to the mother plant.

Common Names include:
SPANISH (Español): Macso, Achacana

Description: Neowerdermannia chilensis is a small growing plant of dark body colour with slender spines and creamy-white flowers that at fist glance look a lot like a Neoporteria. The body tapers off into an immense tap root, without the constricted neck that separates the body and tap root found in Wilcoxias, and some Thelocacti. It is very slow growing and the height is less than half the diameter.
Note: Neowerdermannias are closely related with Gymnocalyciums but the "chins" characteristic of the Gymnos are not in evidence, and they could never be mistaken for a Gymno.
Root: Thick tap root.
Stem: Globose to depressed globose, solitary or gregarious dark bluish green, without felt at the apex. When young the contraction of the tap root during the winter used to pull the plant right down into the ground so that it is nearly visible. Often as the plant becomes older the stem elongate.
Ribs: About 15, indistinct, spiralling, broad at the areoles and strongly tuberculate.
Tubercles: Broadly triangular.
Areoles: At the base of upper side of tubercles.
Central spine: One, stiff, erect, not hooked, brown to black.
Radial spines. as many as 20, slender, flexible, straight or somewhat curved, lowermost one long and sometimes hooked, dull yellow to pinkish grey, becoming darker with age, 8-22 mm long.
Flowers: Small, wide funnel-shaped with spreading limb, creamy-white flushed pink. Pericarpel scaly (like in gymnocalyciums) without bristles or spines. Tube short pale to very dark pink.
Fruit: Reddish, small.

Neowerdermannia chilensis (llifle.com)

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