''Calostemma luteum'' is a

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 ...

bulbous plant species in the ''

Amaryllis ''Amaryllis'' () is the only genus in the subtribe Amaryllidinae (tribe Amaryllideae). It is a small genus of flowering bulbs, with two species. The better known of the two, '' Amaryllis belladonna'', is a native of the Western Cape region of ...

'' family (

Amaryllidaceae The Amaryllidaceae are a family of herbaceous, mainly perennial and bulbous (rarely rhizomatous) flowering plants in the monocot order Asparagales. The family takes its name from the genus '' Amaryllis'' and is commonly known as the amaryl ...

). It is native to

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 ...

South Australia South Australia (commonly abbreviated as SA) is a States and territories of Australia, state in the southern central part of Australia. With a total land area of , it is the fourth-largest of Australia's states and territories by area, which in ...

and

Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...

. It was first described in 1819 by John Sims,Sims, J. (1819)
''Botanical Magazine'' 46: t. 2101
from plants in the botanical garden of the Apothecaries Company, grown from material sent by

Barron Field Barron Field (Camp Taliaferro Field #2) is a former World War I military airfield, located West-southwest of Everman, Texas. It operated as a training field for the Air Service, United States Army between 1917 until 1921. It was List of airf ...

Distribution & habitat

In Victoria it is an endangered species, being known only from a single population on the Murray River floodplain. However, it is common in the catchments of the Darling River in New South Wales and Queensland, and on the Murray River floodplain in South Australia. It is found in woodland and shrubland, on otten seasonally flooded clay flats.

Gallery

Calostemma luteum.jpg Calostemma luteum Narrabri.jpg Calostemma_luteum_fruit_2.jpg Calostemma luteumIMG 20250415 111837.jpg, flowering in great swathes after flooding rain,

Narrabri Narrabri ( ) is a locality and seat of Narrabri Shire Local government in Australia, local government area in the North West Slopes, New South Wales, Australia on the Namoi River, northwest of Sydney. It sits on the junction of the Kamilaroi Hi ...

, NSW Calostemma_luteum_obs_3.jpg,

Gunnedah Gunnedah () is a town in north-central New South Wales, Australia and is the seat of the Gunnedah Shire Local government in Australia, local government area. In the the town recorded a population of 8,338. Gunnedah is situated within the Liver ...

, NSW

References

Amaryllidoideae Flora of New South Wales Flora of South Australia Flora of Queensland Plants described in 1819 {{Amaryllidaceae-stub