''Neowerdermannia'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...
n
cacti
A cactus (: cacti, cactuses, or less commonly, cactus) is a member of the plant family Cactaceae (), a family of the order Caryophyllales comprising about 127 genera with some 1,750 known species. The word ''cactus'' derives, through Latin, ...
.
Description
The individual, low-growing species of the genus Neowerdermannia are spherical to pressed spherical and have a strong taproot. The approximately 16 usually spiral-shaped ribs are hardly distinguishable because they are broken up into warts. The areoles are often sunken and are located at the base of the top of the warts. Some of the thorns arising from it are curved or hooked.
The funnel-shaped flowers are white to purple-pink. They open during the day. Its flower cup and short flower tube are covered with fleshy scales and glabrous
areole
In botany, areoles are small light- to dark-colored bumps on cactus, cacti out of which grow clusters of Thorns, spines, and prickles, spines. Areoles are important diagnostic features of cactus, cacti, and identify them as a family distinct fr ...
s.
The round, horizontally capped or side-opening fruits contain broadly egg-shaped, roughened seeds.
[, pp. 482–483]
Species
The genus comprises only two
species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
:
References
Cactoideae genera
Notocacteae
{{cactus-stub