''Trachymene scapigera'', also known as mountain trachymene, is a species of plant in the

ginseng Ginseng () is the root of plants in the genus ''Panax'', such as South China ginseng (''Panax notoginseng, P. notoginseng''), Korean ginseng (''Panax ginseng, P. ginseng''), and American ginseng (''American ginseng, P. quinquefol ...

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

that is

endemic Endemism is the state of a species being found only 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 foun ...

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

Description

The species is a robust

rhizomatous In botany and dendrology, a rhizome ( ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...

perennial In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...

herb Herbs are a widely distributed and widespread group of plants, excluding vegetables, with savory or aromatic properties that are used for flavoring and garnishing food, for medicinal purposes, or for fragrances. Culinary use typically distingu ...

growing up to 50 cm high. The three- to five-lobed leaves form a basal rosette. Some 20–50 white to pinkish flowers are produced in an

umbel UMBEL (Upper Mapping and Binding Exchange Layer) is a logically organized knowledge graph of 34,000 concepts and entity types that can be used in information science for relating information from disparate sources to one another. It was retired ...

borne on a 12–35 cm stem. Flowering takes place from December to March.

Distribution and habitat

The species was originally known only from the

type specimen In biology, a type is a particular wikt:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally associated. In other words, a type is an example that serves to ancho ...

collected in 1899 near the

Jenolan Caves The Jenolan Caves (Tharawal language, Tharawal: ''Binoomea'', ''Bindo'', ''Binda'') are limestone cave, limestone caves located within the Jenolan Karst Conservation Reserve in the Central Tablelands region, west of the Blue Mountains (New Sout ...

, west of

Sydney Sydney is the capital city of the States and territories of Australia, state of New South Wales and the List of cities in Australia by population, most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Syd ...

. It was subsequently thought to be

extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...

until two adjacent populations were discovered in the 1980s along the banks of the Boyd River in

Kanangra-Boyd National Park The Kanangra-Boyd National Park is a state park, protected national park that is located in the Central Tablelands region, west of the Southern Highlands (New South Wales), Southern Highlands and Macarthur (New South Wales), Macarthur regions, in ...

in the

Central Tablelands The Central Tablelands in New South Wales is a geographic area that lies between the Sydney Metropolitan Area and the Central Western Slopes and Plains. The Great Dividing Range passes in a north–south direction through the Central Tablelands ...

district of

New South Wales New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...

, where the plants grow on flat or gently sloping ground in the riparian zone.

Conservation

The species has been listed as

Endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...

under Australia's

EPBC Act The ''Environment Protection and Biodiversity Conservation Act 1999'' (Cth) is an Act of the Parliament of Australia that provides a framework for protection of the Australian environment, including its biodiversity and its natural and cult ...

. The main threat comes from human activities, as well as, potentially, inappropriate

fire regime A fire regime is the pattern, frequency, and intensity of the bushfires and wildfires that prevail in an area over long periods of time. It is an integral part of fire ecology, and renewal for certain types of ecosystems. A fire regime describes th ...

s and disturbance by

feral pig A feral pig is a domestic pig The pig (''Sus domesticus''), also called swine (: swine) or hog, is an omnivorous, domesticated, even-toed, hoofed mammal. It is named the domestic pig when distinguishing it from other members of the g ...

References

scapigera Flora of New South Wales Apiales of Australia Taxa named by Karel Domin Plants described in 1908 {{Australia-asterid-stub