Question: Which flowering plant genus, Pelargonium or Sutherlandia, includes about 200 species of perennials, succulents, and shrubs, commonly known as geraniums?

Context paragraphs:
Pelargonium album: Pelargonium album is a species of flowering plant of the genus "Pelargonium".  This species is native to South Africa.  It is an apple/mint scented pelargonium which is very closely related to "Pelargonium odoratissimum".  It is in the subgenus "reniforme" along with "Pelargonium sidoides" and "P. exstipulatum".

Sutherlandia: Sutherlandia is a genus of flowering plants in the family Fabaceae.

Aldrovanda vesiculosa: Aldrovanda vesiculosa, commonly known as the waterwheel plant, is the sole extant species in the flowering plant genus "Aldrovanda" of the family Droseraceae.  The plant captures small aquatic invertebrates using traps similar to those of the Venus flytrap.  The traps are arranged in whorls around a central, free-floating stem, giving rise to the common name.  This is one of the few plant species capable of rapid movement.

Pelargonium: Pelargonium is a genus of flowering plants which includes about 200 species of perennials, succulents, and shrubs, commonly known as geraniums (in the United States also storksbills).  Confusingly, "Geranium" is the botanical name (and also common name) of a separate genus of related plants often called cranesbills.  Both genera belong to the family Geraniaceae.  Linnaeus originally included all the species in one genus, "Geranium", and they were later separated into two genera by Charles L’Héritier in 1789.

Besleria: Besleria is a genus of ca. 200 species of large herbs and soft-stemmed subshrubs or shrubs in the flowering plant family Gesneriaceae.  They occur in Central America, South America, and the West Indies.

Cortinarius flexipes: Cortinarius flexipes is a fungus, specifically a mushroom, a small brown species in the genus "Cortinarius".  It is commonly known as the Pelargonium webcap because of its unusual smell of "Pelargonium" (the household "geranium").

Columnea: Columnea is a genus of ca. 200 species of epiphytic herbs and shrubs in the flowering plant family Gesneriaceae, native to tropical America and the Caribbean.  The tubular or oddly shaped flowers are usually large and brightly colored – usually red, yellow, or orange – sometimes resembling a fish in shape.  A common name is flying goldfish plants (see also the related "Nematanthus") due to the unusual flower shape.

Fabaceae: The Fabaceae or Papilionoideae, commonly known as the legume, pea, or bean family, is a large and economically important family of flowering plants.  It includes trees, shrubs, and perennial or annual herbaceous plants, which are easily recognized by their fruit (legume) and their compound, stipulated leaves.  Many legumes have characteristics of flowers and fruits.  The family is widely distributed, and is the third-largest land plant family in terms of number of species, behind only the Orchidaceae and Asteraceae, with about 751 genera and some 19,000 known species.  The five largest of the genera are "Astragalus" (over 3,000 species), "Acacia" (over 1000 species), "Indigofera" (around 700 species), "Crotalaria" (around 700 species) and "Mimosa" (around 500 species), which constitute about a quarter of all legume species.  The ca. 19,000 known legume species amount to about 7% of flowering plant species.  Fabaceae is the most common family found in tropical rainforests and in dry forests in the Americas and Africa.

Phyllanthus: Phyllanthus is the largest genus in the flowering plant family Phyllanthaceae.  Estimates of the number species in this genus vary widely, from 750 to 1200.  "Phyllanthus" has a remarkable diversity of growth forms including annual and perennial herbs, shrubs, climbers, floating aquatics, and pachycaulous succulents.  Some have flattened leaflike stems called cladodes.  It has a wide variety of floral morphologies and chromosome numbers and has one of the widest range of pollen types of any seed plant genus.

Lycium ruthenicum: Lycium ruthenicum (), is a flowering plant commonly known as Russian box thorn in the West.  is a species of flowering plant in the nightshade family which can be found in Central Asia, southern part of Russia, throughout Northwest China, and Pakistan.  Also commonly known as black fruit wolfberry, goji nero, siyah goji, kaokee, თეთრეკალა, (Tibetan name) “next to Mary”, is a species of flowering plant in the nightshade family which can be found in Central Asia, southern part of Russia, throughout Northwest China, and Pakistan.

Supporting paragraphs: Pelargonium Sutherlandia
Answer: Pelargonium