''Guichenotia macrantha'', commonly known as large-flowered guichenotia, is a species of flowering plant in the family

Malvaceae Malvaceae, or the mallows, is a family of flowering plants estimated to contain 244 genera with 4225 known species. Well-known members of economic importance include okra, cotton, cacao and durian. There are also some genera containing familiar o ...

. It is a shrub with grey-green leaves, mauve flowers and is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

to Western Australia.

Description

''Guichenotia macrantha'' is an open, upright, or sometimes a straggling small or tall shrub to high, wide with new growth covered in star-shaped hairs. The leaves are linear to oblong shaped, upper surface grey-green, long, wide, margins rolled under, lower surface yellowish-green, wrinkled, thickly hairy, rounded apex on a petiole long. The

calyx Calyx or calyce (plural "calyces"), from the Latin ''calix'' which itself comes from the Ancient Greek ''κάλυξ'' (''kálux'') meaning "husk" or "pod", may refer to: Biology * Calyx (anatomy), collective name for several cup-like structures ...

lobes are mauve, pink-purple, sometimes white, each lobe with three distinct ribs, in diameter, divided to halfway, petals deep red, small,

pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures ...

long and

peduncle Peduncle may refer to: *Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed *Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body **Peduncle (art ...

s long. The bracts are leaf-like, oval-shaped, long, wide and borne at the base of each pedicel. Flowering occurs from May to September and the fruit is a woody, elliptic-shaped capsule.

Taxonomy and naming

''Guichenotia macrantha'' was first formally described in 1846 by Russian botanist

Nikolai Turczaninow Nikolai Stepanovich Turczaninow ( ru , Николай Степанович Турчанинов, 1796 in Nikitovka, now in Krasnogvardeysky District, Belgorod Oblast, Russia – 1863 in Kharkov) was a Russian botanist and plant collector wh ...

and the description was published in ''Bulletin de la Société Impériale des Naturalistes de Moscou''.The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

(''macrantha'') means "large flowered".

Distribution and habitat

Large-flowered guichenotia grows on a variety of soils including clay sands, sands, gravel and granite from the Murchison River to Merredin.

References

{{Taxonbar, from=Q13916791 Byttnerioideae Malvales of Australia Rosids of Western Australia Taxa named by Nikolai Turczaninow