Gerhard Benl

Ptilotus pseudohelipteroides, commonly known as woolly mulla mulla or hairy mulla mulla, is a species of flowering plant of the family Amaranthaceae and is endemic to arid areas of inland Australia. It is a small, erect or prostrate annual herb with hairy leaves, pale yellow or straw-coloured flowers and orange-brown seeds.

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Gahnia novocaledonensis is a tussock-forming perennial in the family Cyperaceae, that is native to parts of New Caledonia.

Gahnia filifolia is a tussock-forming perennial in the family Cyperaceae, that is native to central parts of New South Wales.

Gahnia baniensis is a tussock-forming perennial in the family Cyperaceae, that is native to parts of Asia.

Ptilotus mollis is a species of flowering plant in the family Amaranthaceae and is endemic to northern inland Western Australia. It is a low, compact perennial shrub with terete stems, egg-shaped stem leaves and cylindrical spikes of pinkish white flowers.

Ptilotus maconochiei is a species of flowering plant in the family Amaranthaceae and is endemic to inland Queensland in Australia. It is a tufted shrub with spatula-shaped or broadly elliptic leaves and compact spikes of dull pink flowers.

Ptilotus crosslandii is a species of flowering plant in the family Amaranthaceae and is endemic to inland areas of northern Western Australia. It is a prostrate ephemeral or perennial herb, with lance-shaped to elliptic stem leaves, and broadly oval spikes of sometimes more than 50 to 100 flowers.

Ptilotus clementii, commonly known as tassel top, is a species of flowering plant in the family Amaranthaceae and is endemic to northern Australia. It is an erect to spreading annual herb, with hairy stems and leaves, and oval or cylindrical spikes of green flowers with five stamens.

Ptilotus carinatus is a species of flowering plant in the family Amaranthaceae and is endemic to the north of Western Australia. It is a short-lived, prostrate to low-lying annual herb with egg-shaped leaves and spikes of purple-mauve or magenta-coloured flowers.

Ptilotus beardii, commonly known as low mulla mulla, is a species of flowering plant in the family Amaranthaceae and is endemic to Western Australia. It is a compact, rigid, perennial shrub with many branches, linear leaves, and spikes of pink flowers.

Ptilotus aristatus, commonly known as pink pussy-tail, is a species of flowering plant in the family Amaranthaceae and is endemic to Central Australia. It is an annual or perennial herb with sessile, spatula-shaped or egg-shaped leaves at the base of the plant, and egg-shaped, narrowly egg-shaped or elliptic stem leaves and spikes of pink to pinkish-purple flowers.

Ptilotus appendiculatus is a species of flowering plant in the family Amaranthaceae and is endemic to the north of Western Australia. It is a prostrate perennial herb with egg-shaped leaves and spikes of pink flowers.

Ptilotus aphyllus is a species of flowering plant in the family Amaranthaceae and is endemic to the a small area of inland Western Australia. It is a leafless perennial, except when young, and spikes of purple flowers fading to pink and pale orange.

Ptilotus albidus is a species of flowering plant in the family Amaranthaceae and is endemic to inland Western Australia. It is a compact perennial shrub with linear leaves, spherical spikes of white flowers and dull brown seeds.

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Ptilotus procumbens is a species of flowering plant of the family Amaranthaceae and is endemic to inland Western Australia. It is a spreading, low-lying, perennial or annual herb with several more or less prostrate stems, hairy leaves at first, later glabrous, pinkish white flowers and dull brown seeds.

Ptilotus pedleyanus is a flowering of the family Amaranthaceae and is endemic to Queensland, Australia. It was first formally described in 1982 by Gerhard Benll and Hansjörg Eichler in the journal Brunonia from specimens collected on the edge of a scarp north-east of Barcaldine in 1975. The specific epithet (pedleyanus) honours Leslie Pedley, "Assistant Director of the Queensland Herbarium"', who supplied the authors with Ptilotus material. Ptilotus pedleyanus grows on breakaways, and other stony hills between Winton, Aramac and Quilpie with Acacia catenulata and species of Eremophila.

Ptilotus mitchellii is a species of flowering plant in the family Amaranthaceae and is endemic to northern inland Western Australia. It is a bushy shrublet or straggling shrub with a single stem and many densely leafy shoots, the stem leaves glabrous, and oval or cylindrical clusters of magenta or red flowers.

Ptilotus marduguru is a species of flowering plant in the family Amaranthaceae and is endemic to northern inland Western Australia. It is a perennial herb with upright branches, the shoots, leaves and flower parts covered with soft, woolly hairs, and greenish white or creamy green flowers.

Ptilotus lophotrichus is a species of flowering plant in the family Amaranthaceae and is endemic to the north of the Northern Territory. It was first formally described in 1964 by Gerhard Benl in the Transactions of the Royal Society of South Australia from specimens collected in Arnhem Land by Herbert Basedow in 1928. This species of Ptilotus is found in the Arnhem Coast and Arnhem Plateau bioregions of the Northern Territory, and is listed as "data deficient" under the Northern Territory Government Territory Parks and Wildlife Conservation Act.

Ptilotus lazaridis is a species of flowering plant in the family Amaranthaceae and is endemic to northern inland Western Australia. It is a perennial herb or shrub with linear to lance-shaped stem leaves, and hemispherical spikes of pink or magenta flowers.

Ptilotus kenneallyanus is a species of flowering plant in the family Amaranthaceae and is endemic to northern Western Australia. It is a perennial herb with diamond- to spatula-shaped leaves and spherical to oval spikes of purplish pink to pinkish-mauve flowers.

Ptilotus gardneri is a species of flowering plant in the family Amaranthaceae and is endemic to north-western Australia. It is an erect perennial herb, with linear leaves and oval or cylindrical green spikes of densely arranged flowers.

Ptilotus extenuatus is a species of flowering plant in the family Amaranthaceae and is endemic to eastern Australia. It is an erect perennial plant with a woody rootstock, linear to egg-shaped or lance-shaped leaves, and spikes of about 20 crowded flowers. The species is extinct in New South Wales and "critically endangered" in Queensland.

Ptilotus decalvatus is a species of flowering plant in the family Amaranthaceae and is endemic to the far north of Western Australia. It is an erect annual herb, with narrowly linear to almost thread-like leaves, and oval to cylindrical spikes of 30 to 80 dark mauve to reddish flowers.