Rutidosis leptorrhynchoides

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Button wrinklewort
Rutidosis leptorrhynchoides 01.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Rutidosis
Species:
R. leptorrhynchoides
Binomial name
Rutidosis leptorrhynchoides
Habit Rutidosis leptorrhynchoides plant9 QNR - Flickr - Macleay Grass Man.jpg
Habit

Rutidosis leptorrhynchoides, commonly known as button wrinklewort, [2] is a flowering plant in the family Asteraceae. It is an upright, tufted, perennial herb with bright green leaves and yellow button-shaped flowers.

Contents

Description

Rutidosis leptorrhynchoides is a perennial herb with a simple or multi-branched from a woody rootstock, 15–30 cm (5.9–11.8 in) high, leafy, usually stems more or less smooth except those toward the base may be more or less woolly. The leaves are mostly borne on aerial stems, narrow, linear, bright green, 15–35 mm (0.59–1.38 in) long, 0.5–1.5 mm (0.020–0.059 in) wide, margins rolled under, mostly smooth and the apex pointed. Each stem has one yellow flower, 8–15 mm (0.31–0.59 in) in diameter made up of numerous florets about 7 mm (0.28 in) long, bracts arranged in rows of 5-8, dull green, edges occasionally toothed or more or less jagged. Flowering mostly occurs in summer and the fruit is a narrow, obovoid cypsela, brown, about 1.5 mm (0.059 in) long with several bristles 3 mm (0.12 in) long. [2] [3] [4]

Taxonomy

Rutidosis leptorrhynchoides was first formally described in 1866 by Ferdinand von Mueller and the description was published in Fragmenta Phytographiae Australiae . [5] [6]

Distribution and habitat

Button wrinklewort grows in grassland and woodland in New South Wales, Victoria and the Australian Capital Territory. [3]

Conservation

It is an endangered species under the Australian Environment Protection and Biodiversity Conservation Act 1999. [7]

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References

  1. "Rutidosis leptorrhynchoides". Australian Plant Census. Retrieved 9 March 2023.
  2. 1 2 Sharp, Sarah; Rehwinkel, Rainer; Mallinson, Dave; Eddy, David (2015). Woodland Flora a Field Guide for the Southern Tableland (NSW & ACT). Canberra: Horizons Print Management. ISBN   9780994495808.
  3. 1 2 Harden, G.J. "Rutidosis leptorrhynchoides". PlantNET-NSW flora online. Royal Botanic Gardens Sydney. Retrieved 10 March 2023.
  4. Cosgrove, Meredith (2014). Photographic Guide to Native Plants of the Australian Capital Territory. Meadow Argus. p. 164. ISBN   9780994183408.
  5. "Rutidosis leptorrhynchoides". Australian Plant Name Index. Retrieved 10 March 2023.
  6. von Mueller, Ferdinand (1866). Fragmenta Phytographiae Australiae 5(37) (5(37) ed.). Melbourne, Victoria. p. 148.{{cite book}}: CS1 maint: location missing publisher (link)
  7. "Rutidosis leptorrhynchoides". Australian Govt. National Recovery Plans. Department of Climate Change, Energy, the Environment and Water. Retrieved 10 March 2023.