Biology:Xyris gracilis

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Short description: Species of yelloweyed grass

Xyris gracilis
Xyris gracilis Fagg.jpg
In Boonoo Boonoo National Park
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Xyridaceae
Genus: Xyris
Species:
X. gracilis
Binomial name
Xyris gracilis
R.Br.[1]
Habit in Cathedral Rock National Park

Xyris gracilis, commonly known as slender yellow-eye,[2] is a species of flowering plant in the family Xyridaceae and is endemic to eastern Australia. It is a tufted herb with linear leaves with 5 to 8 flowering stems with bright yellow flowers.

Description

Xyris gracilis is a tufted herb with flat, linear leaves 60–29 cm (24–11 in) long and 1–4 mm (0.039–0.157 in) wide with a sheathing base 14–60 mm (0.55–2.36 in) long and brown or reddish. There are usually 5 to 8 yellow inflorescences, each 5–8 mm (0.20–0.31 in) on flowering stems 27–66 cm (11–26 in) long, each inflorescence with 6 to 14 bracts arranged in 3 to 5 whorls and the flowers opening one at a time. The style is 5–6 mm (0.20–0.24 in) long with branches 2–4 mm (0.079–0.157 in) long. Flowering occurs in December and January.[2][3][4]

Taxonomy

Xyris gracilis was first formally described in 1810 by Robert Brown in Prodromus Florae Novae Hollandiae et Insulae Van Diemen.[5][6] The specific epithet (gracilis) means "slender".[7]

Distribution and habitat

Slender yellow-eye grows in mosit or swampy areas, often in heath, and is widespread on the coast and ranges of New South Wales and southern Victoria.[2][3][4]

References

  1. "Xyris gracilis". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/57845. 
  2. 2.0 2.1 2.2 Conn, Barry J.. "Xyris gracilis". Royal Botanic Gardens Victoria. https://vicflora.rbg.vic.gov.au/flora/taxon/292b376c-48b5-480e-bf47-1a28e0e12e34. 
  3. 3.0 3.1 Doust, Andrew N.L.; Conn, Barry J.. "Xyris gracilis". Royal Botanic Garden Sydney. https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Xyris~gracilis. 
  4. 4.0 4.1 Robinson, Les (1991). Field guide to the native plants of Sydney. Kenthurst, NSW: Kangaroo Press. p. 279. ISBN 0864171927. 
  5. "Xyris gracilis". APNI. https://id.biodiversity.org.au/instance/apni/861254. Retrieved 25 December 2022. 
  6. Brown, Robert (1810). Prodromus Florae Novae Hollandiae et Insulae Van Diemen. London. p. 256. https://www.biodiversitylibrary.org/item/21871#page/124/mode/1up. Retrieved 25 December 2022. 
  7. William T. Stearn (1992). Botanical Latin. History, grammar, syntax, terminology and vocabulary (4th ed.). Portland, Oregon: Timber Press. p. 421. 

Wikidata ☰ Q15475986 entry