Cladorhiza segonzaci is a species of sponge in the taxonomic category of Demospongiae.
 The body of the sponge consists of a spicule and fibers and is water absorbent.
Cladorhiza inversa is a species of sponge in the taxonomic category of Demospongiae.
 The body of the sponge consists of a spicule and fibers and is water absorbent.
Aptera is an obsolete taxonomic category, which included the Apterygota along with various other wingless arthropods.
Fargesia is a genus of Asian bamboo in the grass family.
 They are native primarily to China, with a few species in Vietnam and in the eastern Himalayas.
 Some species are cultivated as ornamentals, with common names include umbrella bamboo and fountain bamboo.
Heterostropha was a previously used taxonomic category, an order of sea snails, within the superorder Heterobranchia.
 In the most current gastropod taxonomy, that of Bouchet & Rocroi, this taxon is no longer in use.
Sigmurethra is a taxonomic category of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs.
 This is an informal group which includes the majority of land snails and slugs.
Gammaridae is a family of amphipods.
 In North America they are included among the folk taxonomic category of "scuds", and otherwise gammarids is usually used as a common name.
Helleborine is the common name for a number of species of orchid.
 It does not correspond to any currently used taxonomic category.
 Some of the plants called helleborines are classified in the genus "Epipactis", some in genus "Cephalanthera".
 A genus "Helleborine" was formerly recognised but has now been absorbed into the Grass pink genus "Calapogon".
Eogastropoda was a previously used taxonomic category of snails or gastropods, a subclass which was erected by Ponder and Lindberg in 1997.
 It was one of two great divisions (subclasses) of the class Gastropoda, the snails.
 The other subclass of gastropods was the Orthogastropoda.
Geranium is a genus of 422 species of flowering annual, biennial, and perennial plants that are commonly known as the cranesbills.
 They are found throughout the temperate regions of the world and the mountains of the tropics, but mostly in the eastern part of the Mediterranean region.
 The long, palmately cleft leaves are broadly circular in form.
 The flowers have five petals and are coloured white, pink, purple or blue, often with distinctive veining.
 Geraniums will grow in any soil as long as it is not waterlogged.
 Propagation is by semiripe cuttings in summer, by seed, or by division in autumn or spring.

Question: To which taxonomic category do both Geranium and Fargesia belong?
Answer: genus