Biology:Ptilotus decipiens

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Short description: Species of grass-like plant

Ptilotus decipiens
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Amaranthaceae
Genus: Ptilotus
Species:
P. decipiens
Binomial name
Ptilotus decipiens
(Benth.) C.A.Gardner[1]
Synonyms[1]
  • Alternanthera decipiens Benth.
  • Ptilotus hoodii F.Muell.
  • Trichinium hoodii F.Muell. nom. inval., pro syn.
Habit near Serpentine Gorge

Ptilotus decipiens, commonly known as false mulla mulla,[2] is a species of flowering plant in the family Amaranthaceae and is endemic to inland areas of Australia. It is a dense annual plant or short-lived perennial herb with hairy, elliptic to four-sided or egg-shaped stem leaves, and short, densely packed spikes of whitish flowers.

Description

Ptilotus decipiens is a dense, annual or short-lived perennial herb with many stems, that typically grows to a height of 20 cm (7.9 in) and has stems and leaves that become glabrous with age. The stem leaves are elliptic, four-sided or egg-shaped, 8–35 mm (0.31–1.38 in) long and 5–19 mm (0.20–0.75 in) long, and there are no leaves at the base of the plant. The flower spikes are short, egg-shaped or cylindrical, up to about 25 mm (0.98 in) long and 5–12 mm (0.20–0.47 in) wide and densely packed with whitish flowers with colourless bracts and bracteoles with a prominent midrib. The outer tepals are 3.4–4.5 mm (0.13–0.18 in) longer and the inner tepals 2.5–3.6 mm (0.098–0.142 in) long and there are five fertile stamens.[3][4]

Taxonomy

This species was first formally described in 1870 by George Bentham who gave it the name Alternanthera decipiens in his Flora Australiensis from specimens collected in Queensland.[5] In 1934, Charles Gardner changed the name Ptilotus decipiens in Enumeratio plantarum Australiae occidentalis.[1] The specific epithet (decipiens) means 'deceiving',[6] alluding to the plant's not looking like other species of "Ptilotus".[2]

Distribution and habitat

Ptilotus decipiens grows on rocky or gravelly hills[3] in the Central Ranges, Great Sandy Desert, Pilbara and Tanami bioregions of Western Australia,[4] the southern half of the Northern Territory[3] in South Australia[2] and in Queensland.[1]

Conservation status

Ptilotus decipiens is listed as of "least concern" by the Queensland Government Nature Conservation Act 1992.[7]

See also

References

  1. 1.0 1.1 1.2 1.3 "Ptilotus decipiens". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/77316. 
  2. 2.0 2.1 2.2 "Ptilotus decipiens". Seeds of South Australia. https://spapps.environment.sa.gov.au/SeedsOfSA/speciesinformation.html?rid=3642. 
  3. 3.0 3.1 3.2 "Ptilotus decipiens". Northern Territory Government. https://eflora.nt.gov.au/factsheet?id=156. 
  4. 4.0 4.1 "Ptilotus daphneae". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/51192. 
  5. "Alternanthera decipiens". Australian Plant Name Index. https://biodiversity.org.au/nsl/services/rest/instance/apni/502106. 
  6. George, Alex; Sharr, Francis (2021). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 179. ISBN 9780958034180. 
  7. "Species profile—Ptilotus decipiens". Queensland Government Department of Education and Science. https://apps.des.qld.gov.au/species-search/details/?id=11662. 

Wikidata ☰ Q17271781 entry