''Portulaca filsonii'' (common names - Sedopsis, Pink Rock-wort) is a plant in the

Portulacaceae The Portulacaceae are a family of flowering plants, comprising 115 species in a single genus ''Portulaca''. Formerly some 20 genera with about 500 species, were placed there, but it is now restricted to encompass only one genus, the other genera ...

family, endemic to central Australia in the

Northern Territory The Northern Territory (commonly abbreviated as NT; formally the Northern Territory of Australia) is an states and territories of Australia, Australian territory in the central and central northern regions of Australia. The Northern Territory ...

. It was first described by

James Hamlyn Willis James Hamlyn Willis (28 January 1910 – 10 November 1995) was an Australian botanist. He described 64 new species of plants, and published more than 880 works including the landmark two-volume ''A Handbook to plants in Victoria'' between 1962 ...

in 1975 from a specimen collected in Kings Canyon. The holotype
MEL 501441
and isotype
MEL 501455
were both collected by Willis in 1966. The name accepted by the

Council of Heads of Australasian Herbaria Council of Heads of Australasian Herbaria (CHAH) is an association of the leaders of herbaria in Australia and New Zealand. It is governed by a constitution. It endorses the taxonomy and nomenclature of the Australian Plant Census, which is the so ...

is the later name of ''Sedopsis filsonii'', created as a new combination by Willis in 1977. The species epithet, ''filsonii'', honours

Rex Bertram Filson Rex Bertram Filson (born 1930) is an Australian lichenologist who made major contributions to knowledge of lichens in Australia and Antarctica. Early in his career Filson worked as a carpenter in various places around Australia, and from 1961 to ...

. ''Portulaca filsonii'' is listed as "Near Threatened" under the TPWCA Act.

Description

''Portulaca filsonii'' is a prostrate, succulent perennial plant. It has a swollen root, and its leaves are opposite. The flowers have a tubular corolla with four pink spreading lobes. There are two partially fused sepals.

References

External links

''Sedopsis filsonii'' occurrence data
from the

Australasian Virtual Herbarium The ''Australasian Virtual Herbarium'' (AVH) is an online resource that allows access to plant specimen data held by various Australian and New Zealand herbaria. It is part of the Atlas of Living Australia (ALA), and was formed by the amalgamat ...

{{taxonbar, from=Q17250503, from2=Q65948410 Flora of the Northern Territory Plants described in 1975 filsonii Taxa named by James Hamlyn Willis