Rytidosperma caespitosum

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Rytidosperma caespitosum
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Genus: Rytidosperma
Species:
R. caespitosum
Binomial name
Rytidosperma caespitosum
(Gaudich.)
Synonyms[1]
  • Austrodanthonia caespitosa (Gaudich.) H.P.Linder
  • Danthonia caespitosa Gaudich

Rytidosperma caespitosum, known by various common names including common wallaby-grass, ringed wallaby-grass, and white-top, is a species of grass native to southern parts of Australia.

Description[]

It is a tufted perennial grass that reaches up to 90 centimetres high. Flowers are purple or green, and occur in a panicle of from 10 to 30 spikelets, each of which contains from four to nine individual flowers.[2][3]

Taxonomy[]

It was first collected from Shark Bay in Western Australia by Charles Gaudichaud-Beaupré, botanist to the expedition of Louis de Freycinet. It was published by Gaudichaud-Beaupré in 1829 under the name Danthonia caespitosa. During the 1960s and 1970s it was transferred firstly into Notodanthonia and then into Rytidosperma. In 1993 it was transferred into Austrodanthonia by .[4] However, in 2010 Austrodanthonia was again submerged into a broader Rytidosperma, and all Austrodanthonia species are now considered part of the genus Rytidosperma.[5][6]

Distribution and habitat[]

It occurs throughout the wetter, cooler parts of southern Australia. It is found in many diverse habitats, and tolerates a range of soils, including sands, loams, granite, and laterite.[2][3] It is considered one of the main native pasture grasses in southern Australia[7]

Ecology[]

Flowering occurs in spring or summer, usually in response to rain.[3]

References[]

  1. ^ Rytidosperma caespitosum (NSW PlantNet)
  2. ^ a b "Austrodanthonia caespitosa (Gaudich.) H.P.Linder". FloraBase. Western Australian Government Department of Parks and Wildlife.
  3. ^ a b c "New South Wales Flora Online: Austrodanthonia caespitosa". Royal Botanic Gardens & Domain Trust, Sydney, Australia.
  4. ^ "Austrodanthonia caespitosa (Gaudich.) H.P.Linder". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  5. ^ Linder, H. Peter; Baeza, Marcelo; Barker, Nigel P.; Galley, Chloé; Humphreys, Aelys M.; Lloyd, Kelvin M.; Orlovich, David A.; Pirie, Michael D.; Simon, Bryan K.; Walsh, Neville; Verboom, G. Anthony (2010). "A Generic Classification of the Danthonioideae (Poaceae)1". Annals of the Missouri Botanical Garden. 97 (3): 306–364. doi:10.3417/2009006. S2CID 86082569.
  6. ^ https://vicflora.rbg.vic.gov.au/flora/taxon/de8ffcc4-1a6d-491e-86af-4ebb7be679c3
  7. ^ Bell, Una (2008), Common native grasses of south-west WA, [Mundaring, Western Australia] [Una Bell], retrieved 30 October 2016
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