The Amaranthoideae are a subfamily of the Amaranthaceae. The stamens have anthers with two lobes (locules) and four pollen sacs. The main distribution of the subfamily is in tropical America, in tropical and Southern Africa, and in Australia.
Kevin R. Thiele is currently an adjunct associate professor at the University of Western Australia and the director of Taxonomy Australia. He was the curator of the Western Australian Herbarium from 2006 to 2015. His research interests include the systematics of the plant families Proteaceae, Rhamnaceae and Violaceae, and the conservation ecology of grassy woodland ecosystems. He also works in biodiversity informatics, developing and teaching the development of interactive multi-access keys, and has been involved in the design of software for the Global Biodiversity Information Facility.
Aerva is a genus of plants in the family Amaranthaceae. Its species are native to the palaeotropics, throughout continental Africa, Madagascar and smaller islands, through parts of the Middle East, India, and southeast Asia. Aerva javanica is an alien in northern Australia.
Ptilotus R.Br. is a genus of approximately 120 species of annual and perennial herbs and shrubs in the family Amaranthaceae. All species are native to mainland Australia, although one species, Ptilotus spathulatus (R.Br.) Poir., also occurs in Tasmania and another, Ptilotus conicus R.Br., in Malesia on the islands of Flores and Timor. Most of the diversity is in Western Australia, particularly in the Pilbara. Common names for species in this genus include mulla mulla, foxtails, pussy tails and lamb's tails. The genus was first formally described by botanist Robert Brown in Prodromus Florae Novae Hollandiae in 1810. In family-level phylogenetic studies, Ptilotus has been placed within a clade informally known as the 'aervoids'. It has been resolved as monophyletic and is closely related to Aerva Forssk. An interactive key to the species of Ptilotus is available at KeyBase.
Ptilotus macrocephalus is a native Australian perennial herb growing up to 50 centimetres (20 in) high. The species was originally described as Trichinium macrocephalum by Robert Brown in 1810 based on specimens from Victoria, Australia. In 1816, it was first transferred to the genus Ptilotus by Jean Louis Marie Poiret. While once considered distributed throughout most of the Australian mainland, current research limits the distribution of P. macrocephalus to south-eastern Australia, mostly in south-eastern South Australia, Victoria and New South Wales. A study by Hammer et al. (2019) determined that specimens previously identified as P. macrocephalus are morphologically and ecologically distinct species, the now named Ptilotus xerophilusT.Hammer & R.W.Davis and Ptilotus psilorhachisT.Hammer & R.W.Davis.
Ptilotus exaltatus, more commonly known as pink mulla mulla, is an erect annual herb endemic to large parts of arid and semi-arid Australia. It grows throughout most areas of Australia except the Nullarbor Plain, occurring geographically above a line drawn from Perth to Esperance. The species was first observed and described in 1810, and comprehensively catalogued in 1971.
Telopea truncata, commonly known as the Tasmanian waratah, is a plant in the family Proteaceae. It is endemic to Tasmania where it is found on moist acidic soils at altitudes of 600 to 1200 m (2000–4000 ft). Telopea truncata is a component of alpine eucalypt forest, rainforest and scrub communities. It grows as a multistemmed shrub to a height of 3 metres (10 ft), or occasionally as a small tree to 10 m (35 ft) high, with red flower heads, known as inflorescences, appearing over the Tasmanian summer and bearing 10 to 35 individual flowers. Yellow-flowered forms are occasionally seen, but do not form a population distinct from the rest of the species.
Sida clementii is a shrub in the family Malvaceae, native to Western Australia. It has an erect, spreading habit and grows to between 0.4 and 1.3 metres high. Yellow flowers are produced between March and May and again between September and November in the species' native range on plains in the Pilbara.
Triumfetta clementii is a shrub species that occurs in the north-west of Western Australia. It has an erect, spreading habit, growing to between 0.15 and 0.6 metres high. Yellow flowers appear between May and October in the species' native range.
Tephrosia clementii is a plant species, endemic to the north-west of Western Australia. It is an annual with a prostrate, spreading habit, growing to between 0.1 and 0.25 metres high. Orange or red flowers are produced between January and March in the species' native range.
Tephrosia rosea, commonly known as Flinders River poison, is a plant species, endemic to northern Australia. It is a shrub with an erect or sprawling habit, growing to between 0.2 and 2 metres high. Pink to purple flowers are produced throughout the year in the species' native range.
Ptilotus nobilis, commonly known as yellow tails, is an annual or short-lived perennial herb of the family Amaranthaceae. It is found in arid regions of South Australia, southern and eastern Northern Territory, western Queensland and western New South Wales.
Ptilotus rotundifolius(F.Muell.) F.Muell. is a pink-flowered species of shrub in the genus PtilotusR.Br. (Amaranthaceae). It is commonly known as "royal mulla mulla". It is native to the Gascoyne, Murchison and Pilbara IBRA regions of Western Australia.
Ptilotus spathulatus (R.Br.) Poir. (pussy tails) is a species of perennial herbs in the genus Ptilotus, native to Western Australia, South Australia, Victoria, New South Wales and Tasmania. It is the only species of Ptilotus that occurs in Tasmania.
Hansjörg Eichler was a German-born botanist, educated in Europe, who worked in Europe and Australia, and whose greatest contribution was to Australian botany.
Ptilotus pyramidatus, the pyramid mulla mulla, is a small white herb in the family Amaranthaceae.
Ptilotus schwartzii is a grass-like plant in the Amaranthaceae family.
Ptilotus auriculifolius is an herb in the Amaranthaceae family.
Ptilotus humilis is an annual herb in the Amaranthaceae family, native to Western Australia. It was first described as Trichinium humile by Nees von Esenbeck in 1845 but was transferred to the genus, Ptilotus, by Ferdinand von Mueller in 1868.
Ptilotus latifolius, the tangled mulla mulla, is a native Australia perennial herb which grows abundantly on sand dunes and stony plains. The key diagnostic features of this plant are its very stem bound, shrub like appearance with densely clustered white white flowers with pink tips when newly blossomed. Each stem is generally supported by one to two leaves and the stems have a fluffy textures as well as the flowers. The petiole is generally long in this species and spike bound.
