Triodia scintillans

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Triodia scintillans
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Genus: Triodia
Species group: Triodia basedowii species complex
Species:
T. scintillans
Binomial name
Triodia scintillans
Triodia basedowii complex map.jpg
Distribution of taxa in the Triodia basedowii complex, with a superimposed phylogenetic tree. T. scintillans is in purple and labeled "S".

Triodia scintillans, the sparkling spinifex, or salt and vinegar chips spinifex [2] is a species of grass in the genus Triodia . It tastes like salt and vinegar potato chips. [1] [3]

Contents

Names

The specific epithet scintillans was chosen with help from Alex George and derives from the Latin word scintillo which means "to sparkle". [1] This refers to the distinct sparkly droplets on young leaves which is especially apparent in direct sun. [1] The common name "sparkling spinifex" is a calque of that Latin binomial. [2] Although this plant is not in the genus Spinifex , members of the genus Triodia are commonly called "spinifex". [4] T. vanleeuwenii is also called sparking spinifex. [5]

Triodia scintillans is referred to as salt and vinegar chips spinifex because the little leaf droplets have a similar taste to the chips. [3] [2] The plant was not tasted intentionally, and eating it is not recommended. [2]

The species was informally called "Triodia sp. Warrawagine" initially, referencing a cattle station in the region. [6] [1] [7]

Taxonomy

Triodia scintillans is in the T. basedowii species complex along with eight other species, T. basedowii , T. birriliburu , T. chichesterensis , T. glabra , T. lanigera , T. mallota , T. nana , and T. vanleeuwenii. [8] [9] Within the complex, it is in an informal clade called the eastern group, along with T. basedowii, T. birriliburu, T. nana, and T. vanleeuwenii. [10] [8] Analysis of internal transcribed spacer [9] and external transcribed spacer [10] sequences show a close relative of T. scintillans is T. vanleeuwenii, [10] which shares the leaf droplets. [1] The two species possibly hybridize where the ranges overlap near Roy Hill Station. [1] A more recent study on chloroplast DNA indicated that the closest relative of T. scinitillans is T. basedowii instead of T. vanleeuwenii. [11]

Distribution

Triodia scintillans is endemic to Western Australia and found north of the Fortescue River valley in the Mackay subregion of the Great Sandy Desert and the Chichester and Fortescue subregions of the Pilbara shrublands. [1] [7] The type was collected by M. D. Barrett in Western Australia on Woodie Woodie Road, 19 kilometers south of the turn-off to Telfer. [1]

The plant grows on slopes and plains, on primarily gravelly soils. [1] [8]

The conservation status for the species has been described as "least concern" [1] and "not threatened". [7]

Description

Individual plants grow in 20–50 cm tall hummocks. [1]

The leaf sheaths are glabrous with scintillating droplets, which tend to become crystalline when dried. [1] The purpose of the droplets is unknown, but possibly to deter herbivores. [5]

The sheath opening is villous or woolly with 1.5–2.5 mm trichomes (hairs) that sometimes wear off on older leaves. [1] Plants have ligules that are 0.5–1 mm long. [1] The leaf blades are short for the genus, typically 40–100 mm long. [1] They are glabrous or rarely with a few trichomes spreading onto the 1–3 mm long pseudopetiole. [1]

Flowers appear on 0.7–1 m tall culms in February, March, and July–August after heavy rainfall. [1] The inflorescences are highly-branched and 40–98 mm long racemose panicle with seven to nineteen spikelets. [1] The pedicels are 1–18 mm long. Spikelets are 3.5–8 mm by 7–13 mm with four to ten florets. [1] The florets are restricted by the glumes for a portion of the length. [1] The lower glume is 2.5–4 by 4–7.8 mm and slightly scabrous to glabrous with an acuminate to acute apex. [1] The lowest lemma is 5–9 mm long with three deep lobes. [1] The palea ~3 by ~1 mm, with few to no trichomes underneath. [1] The keels (main ridge) of the palea are puberulent. [1] The keel has a thickened surface, the body less so, with the thickness becoming weaker towards the somewhat truncate and sometimes ciliate apex. [1] The rhachilla segment is 0.5–1 mm long and the lodicules are 0.2–0.5 mm long. [1] The anthers in the flower are 2.2–3.5 mm long. [1] The caryopsis (seed) is unseen. [1]

Triodia scintillans is diploid. [10] The plastome is 135,301  bp, and its GC-content is 38.4%. [11]

Ecology

Nothing is known to eat the grass, and cows refuse to graze on it. [5]

Related Research Articles

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<i>Triodia</i> (plant) Genus of plants

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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.

Western pebble-mound mouse or Ngadji is a burrowing and mound building rodent in the family Muridae. They occur in the Pilbara, a remote region in the northwest of Australia.

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Western Australia occupies nearly one third of the Australian continent. Due to the size and the isolation of the state, considerable emphasis has been made of these features; it is the second largest administrative territory in the world, after Yakutia in Russia, despite the fact that Australia is only the sixth largest country in the world by area, and no other regional administrative jurisdiction in the world occupies such a high percentage of a continental land mass. It is also the only first level administrative subdivision to occupy the entire continental coastline in one cardinal direction.

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<span class="mw-page-title-main">Mallee emu-wren</span> Species of bird

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<span class="mw-page-title-main">Tussock grass</span> Species of grass

Tussock grasses or bunch grasses are a group of grass species in the family Poaceae. They usually grow as singular plants in clumps, tufts, hummocks, or bunches, rather than forming a sod or lawn, in meadows, grasslands, and prairies. As perennial plants, most species live more than one season. Tussock grasses are often found as forage in pastures and ornamental grasses in gardens.

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<i>Eucalyptus gamophylla</i> Species of plant

Eucalyptus gamophylla, commonly known as warilu, blue-leaved mallee, twin-leaf mallee, twin-leaved mallee or blue mallee, is a species of mallee that is native to Western Australia, South Australia and the Northern Territory. It usually has smooth bark, mostly only juvenile leaves arranged in opposite pairs, flower buds in groups of three, whitish flowers and cylindrical to barrel-shaped fruit that is four-sided in cross-section.

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<i>Triodia scariosa</i> Species of plant

Triodia scariosa, is more commonly known as porcupine grass or spinifex, and belongs to the endemic Australian grass genusTriodia. The species is perennial and evergreen and individuals grow in mounds, called hummocks, that reach up to ~1m in height. The leaves are ~30 cm long, 1mm in diameter, needlepointed and rigid, and its inflorescence is a narrow, loose panicle that forms a flowering stalk up to ~2m in height. The name is derived from Latin; Triodia refers to the three-toothed lobes of the lemma, and scariosa is in reference to the thin, dry glume. The species is common to Mallee (MVG14) and Hummock grassland (MVG20) communities, in arid and semi-arid regions of Australia.

<i>Triodia basedowii</i> Species of plant

Triodia basedowii, commonly known as lobed spinifex, is a species of tussock-forming grass-like plant found in Australia.

<i>Ischaemum rugosum</i> Species of grass

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<i>Hemiergis millewae</i> Species of reptile

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Daviesia arthropoda is a species of flowering plant in the family Fabaceae and is endemic to Central Australia. It is a glabrous shrub with widely spreading branches, sharply-pointed, narrowly egg-shaped phyllodes with the narrower end towards the base, and yellow flowers with faint red markings.

T. scintillans may refer to a. The specific epithet scintillans refers to something that sparkles.

References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Anderson, Benjamin M.; Thiele, Kevin R.; Barrett, Matthew D. (20 October 2017). "A revision of the Triodia basedowii species complex and close relatives (Poaceae: Chloridoideae)". Australian Systematic Botany. 30 (3): 197–229. doi: 10.1071/SB17011 .
  2. 1 2 3 4 Morrison, Lisa (13 November 2017). "'Salt and vinegar chips' spinifex one of eight new plant species discovered by finger-licking scientists". ABC News. Archived from the original on 4 September 2023. Retrieved 6 September 2023.
  3. 1 2 Dean, Signe (14 November 2017). "Scientists Have Discovered a Grass That Tastes Like Salt And Vinegar Chips". ScienceAlert. Archived from the original on 18 January 2018. Retrieved 19 January 2019.
  4. Lazarides, M. (29 August 1997). "A Revision of Triodia including Plectrachne (Poaceae, Eragrostideae, Triodiinae)". Australian Systematic Botany. 10 (3): 381–489. doi:10.1071/SB96012. ISSN   1446-5701. Archived from the original on 16 December 2019. Retrieved 6 September 2023. Spinifex, the long-established popular name for species of Triodia and Plectrachne, sometimes confused with the maritime genus, Spinifex L., comprises Australian endemics that are as characteristically Australian as Eucalyptus and Acacia
  5. 1 2 3 Chen, Angus (8 December 2017). "Scientists Discover Grass Species With Intriguing 'Salt And Vinegar' Chip Flavor". NPR. Archived from the original on 7 September 2023. Retrieved 7 September 2023.
  6. "Occurrence record: PERTH 5634490". The Australasian Virtual Herbarium. Atlas of Living Australia. Archived from the original on 11 September 2023. Retrieved 11 September 2023.
  7. 1 2 3 "Triodia scintillans B.M.Anderson & M.D.Barrett". Florabase—the Western Australian Flora. Western Australian Herbarium. Archived from the original on 5 September 2023. Retrieved 5 September 2023. Distribution IBRA Regions Great Sandy Desert, Pilbara. IBRA Subregions Chichester, Fortescue, Mackay.
  8. 1 2 3 Anderson, Benjamin M.; Thiele, Kevin R.; Grierson, Pauline F.; Krauss, Siegfried L.; Nevill, Paul G.; Small, Ian D.; Zhong, Xiao; Barrett, Matthew D. (April 2019). "Recent range expansion in Australian hummock grasses (Triodia) inferred using genotyping-by-sequencing". AoB Plants. 11 (2): plz017. doi:10.1093/aobpla/plz017. ISSN   2041-2851. PMC   6481909 . PMID   31037212. Archived from the original on 7 September 2023. Retrieved 7 September 2023.
  9. 1 2 Anderson, Benjamin M.; Barrett, Matthew D.; Krauss, Siegfried L.; Thiele, Kevin (17 May 2016). "Untangling a species complex of arid zone grasses (Triodia) reveals patterns congruent with co-occurring animals". Molecular Phylogenetics and Evolution. 101: 142–162. doi:10.1016/j.ympev.2016.05.014. PMID   27179699. Archived from the original on 6 September 2023. Retrieved 6 September 2023. The T. basedowii species complex comprises T. basedowii and T. lanigera along with four informally named taxa (Western Australian Herbarium, 1998): T. sp. Shovelanna Hill (S. van Leeuwen 3835), T. sp. Little Sandy Desert (S. van Leeuwen 4935), T. sp. Peedamulla (A.A. Mitchell PRP1636) and T. sp. Warrawagine (A.L. Payne PRP 1859).... T. sp. Warrawagine is morphologically similar to T. sp. Shovelanna Hill, but has a branched inflorescence with a greater number of spikelets.
  10. 1 2 3 4 Anderson, Benjamin M.; Thiele, Kevin R.; Krauss, Siegfried L.; Barrett, Matthew D. (30 January 2017). "Genotyping-by-Sequencing in a Species Complex of Australian Hummock Grasses (Triodia): Methodological Insights and Phylogenetic Resolution". PLOS ONE. San Francisco, CA. 12 (1): e0171053. Bibcode:2017PLoSO..1271053A. doi: 10.1371/journal.pone.0171053 . PMC   5279811 . PMID   28135342.
  11. 1 2 Wang, Rong; Liu, Kuan; Zhang, Xue-Jie; Chen, Wen-Li; Qu, Xiao-Jian; Fan, Shou-Jin (25 March 2021). Vieira, Leila D. (ed.). "Comparative Plastomes and Phylogenetic Analysis of Cleistogenes and Closely Related Genera (Poaceae)". Frontiers in Plant Science. 12: 638597. doi: 10.3389/fpls.2021.638597 . PMC   8030268 . PMID   33841465.