''Pimelea floribunda'' is a species of flowering plant in the family

Thymelaeaceae The Thymelaeaceae are a cosmopolitan family of flowering plants composed of 50 genera (listed below) and 898 species.Zachary S. Rogers (2009 onwards)A World Checklist of Thymelaeaceae (version 1) Missouri Botanical Garden Website, St. Louis. It ...

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 elsew ...

to the

south-west The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each se ...

of Western Australia. It is a shrub with narrowly elliptic to egg-shaped leaves arranged in opposite pairs, and drooping, head-like clusters of white or cream-coloured, tube-shaped flowers.

Description

''Pimelea floribunda'' is a shrub that typically grows to a height of and has glabrous stems. The leaves are narrowly elliptic to egg-shaped, long, wide and glabrous. The flowers are arranged in drooping heads of many flowers, the heads usually surrounded by 4 egg-shaped involucral bracts long and wide. The floral tube is long and the

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

s long. Flowering occurs from July to October.

Taxonomy

''Pimelea floribunda'' was first formally described in 1857 by Carl Meissner in de Candolle's ''

Prodromus Systematis Naturalis Regni Vegetabilis ''Prodromus Systematis Naturalis Regni Vegetabilis'' (1824–1873), also known by its standard botanical abbreviation ''Prodr. (DC.)'', is a 17-volume treatise on botany initiated by Augustin Pyramus de Candolle. De Candolle intended it as a summa ...

'' from specimens collected by James Drummond. 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 ...

(''floribunda'') means "flowering profusely".

Distribution and habitat

This pimelea grows on coastal sand dunes, limestone ridges and

lateritic Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by ...

breakaways in near-coastal areas between Northampton, and

Wanneroo Wanneroo is a suburb of Perth, Western Australia, located within the City of Wanneroo. Geography As it is on the Swan Coastal Plain, the Wanneroo wetlands stretch parallel to the coastline and to the north and south of the suburb. Education W ...

, in the Avon Wheatbelt, Geraldton Sandplains,

Jarrah Forest Jarrah forest is tall open forest in which the dominant overstory tree is ''Eucalyptus marginata'' (jarrah). The ecosystem occurs only in the Southwest Botanical Province of Western Australia. It is most common in the biogeographic region named in ...

and

Swan Coastal Plain The Swan Coastal Plain in Western Australia is the geographic feature which contains the Swan River as it travels west to the Indian Ocean. The coastal plain continues well beyond the boundaries of the Swan River and its tributaries, as a geol ...

bioregions of south-western Western Australia.

Conservation status

''Pimelea floribunda'' is listed as "not threatened" by the Government of Western Australia

Department of Biodiversity, Conservation and Attractions The Department of Biodiversity, Conservation and Attractions (DBCA) is the Western Australian government The Government of Western Australia, formally referred to as His Majesty's Government of Western Australia, is the Australian state de ...

References

{{Taxonbar, from=Q17582332 Malvales of Australia floribunda Flora of Western Australia Taxa named by Carl Meissner Plants described in 1857