Ilparpa Claypans FloraAnnual Yellowtop (Senecio gregorii) Apple Bush (Pterocaulon sphacelatum) Buffel Grass (Cenchrus ciliaris) Button grass (Dactyloctenium radulans) Centipeda crateriformis Cyperus sp Goatshead Burr (Sclerolaena bicornis) Golden Everlasting (Xerochrysum bracteatum) Invisible Plant (Siemssenia capillaris) Longtails (Ptilotus polystachyus) Nardoo (Marsilea drummondii) Pink Everlasting (Schoenia cassiniana) Polycarpaea corymbosa var brevifolia Red Pussytail (Ptilotus polystachyus) Schenkia australis Small-Leaf Swainson-Pea (Swainsona microphylla) Tiny Purslane (Calandrinia pumila) Tiny Purslane (White form) Variable Daisy (Brachyscome ciliaris) Wahlenbergia capillaris Yellow Billybutton (Calocephalus platycephalus)

An Australian native plant, the bright Annual Yellowtop (Senecio gregorii) is found in arid and semi-arid regions of the Australia. The Annual Yellowtop pictured here were at the Ilparpa Claypans, just south of Alice Springs.

The flowers of the yellowtop can grow up to 30 cm in height with yellow centre and surrounded by 7-8 bright yellow petals in a star-like formation. They are a joyous sight when carpeting the landscape, especially after significant rain.

Annual Yellowtop (Senecio gregorii), Ilparpa Claypans, Alice Springs NT
Annual Yellowtop (Senecio gregorii), Ilparpa Claypans, Alice Springs NT

When the flower set seed, the head changes to dense white silky bristles. The seeds are then spread by wind.

Annual Yellowtop (Senecio gregorii), Ilparpa Claypans, Alice Springs NT
Annual Yellowtop (Senecio gregorii), Ilparpa Claypans, Alice Springs NT

See more in our Flora section on the Annual Yellowtop (Senecio gregorii).


  • Scientific classification
  • Kingdom: Plantae
  • Class: Equisetopsida
  • Family: Asteraceae
  • Genus: Senecio
  • Species: S. gregorii
  • Binomial name: Senecio gregorii

Ilparpa Claypans FloraAnnual Yellowtop (Senecio gregorii) Apple Bush (Pterocaulon sphacelatum) Buffel Grass (Cenchrus ciliaris) Button grass (Dactyloctenium radulans) Centipeda crateriformis Cyperus sp Goatshead Burr (Sclerolaena bicornis) Golden Everlasting (Xerochrysum bracteatum) Invisible Plant (Siemssenia capillaris) Longtails (Ptilotus polystachyus) Nardoo (Marsilea drummondii) Pink Everlasting (Schoenia cassiniana) Polycarpaea corymbosa var brevifolia Red Pussytail (Ptilotus polystachyus) Schenkia australis Small-Leaf Swainson-Pea (Swainsona microphylla) Tiny Purslane (Calandrinia pumila) Tiny Purslane (White form) Variable Daisy (Brachyscome ciliaris) Wahlenbergia capillaris Yellow Billybutton (Calocephalus platycephalus)

Ilparpa ClaypansIlparpa Claypans Fauna Ilparpa Claypans Flora Ilparpa Claypans Landscape

Northern TerritoryCentral Australia Aileron Alice Springs Binns Track Chambers Pillar Historical Reserve Ernest Giles Road Finke Gorge National Park Henbury Meteorites Conservation Reserve Hermannsburg Historic Precinct Ilparpa Claypans Karlu Karlu / Devils Marbles Conservation Reserve MacDonnell Ranges Owen Springs Reserve Red Centre Way Drive Standley Chasm Tnorala (Gosse Bluff) Conservation Reserve Uluru-Kata Tjuta National Park Watarrka National Park & Kings Canyon Wurre / Rainbow Valley