Ammobium alatum

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Ammobium alatum
Ammobium alatum.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Ammobium
Species:
A. alatum
Binomial name
Ammobium alatum
Synonyms [1]
  • Ammobium alatumR.Br. f. alatum
  • Ammobium alatum f. grandiflorum Siebert & Voss
  • Ammobium spathulatum Gaudich.
  • Helichrysum alatum(R.Br.) Baill.
  • Ixodia ammobium Spreng. nom. illeg.
Habit Ammobium alatum habit.jpg
Habit
Stem detail Ammobium alatum stem.jpg
Stem detail

Ammobium alatum, commonly known as the winged everlasting, [2] is a species of perennial herb in the daisy family Asteraceae and is both a native and an introduced species in south-eastern Australia. It has prominently winged stems, most of its leaves at the base, and heads of yellow florets surrounding by papery, white involucral bracts.

Contents

Description

Ammobium alatum is a species of perennial herb, occasional an annual, that typically grows to a height of 60–100 cm (24–39 in) with winged, woolly-hairy, usually much-branched stems. Most of its leaves are at the base of the plant and are narrow egg-shaped to narrow triangular. The basal leaves are 40–60 mm (1.6–2.4 in) long and 10–15 mm (0.39–0.59 in) wide on a petiole 70–100 mm (2.8–3.9 in) long. There are a few sessile, bract-like leaves on the stems. The flowers are 10–20 mm (0.39–0.79 in) wide with bright yellow florets that become darker with age, the corolla about 5 mm (0.20 in) long. The florets are surrounded by papery, white involucral bracts 5–10 mm (0.20–0.39 in) long with jagged edges. Flowering mainly occurs from November to April and the cypselas are linear, wrinkled and dark brown with an awn up to 1 mm (0.039 in) long. [3] [4]

Taxonomy and naming

The genus Ammobium and Ammobium alatum were first described in 1824 Robert Brown in Curtis Botanical Magazine . [5] [6] The name Ammobium is from the Greek words, ammos ("sand") and bios (" life"), describing the genus as growing in sand, [6] [7] and the specific epithet alatum is from the Latin alatus meaning "winged" [8] in reference to its winged stems. [9]

Distribution and habitat

The winged everlasting often grows in disturbed environments such as on roadsides and agricultural land, and sometimes on riverbanks where the seeds have been carried from disturbed areas. Records of this species in natural habitats are from eucalypt forests in plateau and rocky cliffs in northern New South Wales, from river banks in the upper Snowy River in Victoria, from the Northern Tablelands and North West Slopes of New South Wales and from south-east Queensland. [4] Robert Brown found it "growing plentifully near the shores of Port Hunter (or the Coal River) in New South Wales" in 1804. [6] The species is naturalised in South Australia, The Australian Capital Territory and Tasmania, and in places outside its natural distribution in New South Wales. [1]

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Xerochrysum bracteatum, commonly known as the golden everlasting or strawflower, is a flowering plant in the family Asteraceae native to Australia. Described by Étienne Pierre Ventenat in 1803, it was known as Helichrysum bracteatum for many years before being transferred to a new genus Xerochrysum in 1990. It is an annual up to 1 m (3.3 ft) tall with green or grey leafy foliage. Golden yellow or white flower heads are produced from spring to autumn; their distinctive feature is the papery bracts that resemble petals. The species is widespread, growing in a variety of habitats across the country, from rainforest margins to deserts and subalpine areas. The golden everlasting serves as food for various larvae of lepidopterans, and adult butterflies, hoverflies, native bees, small beetles, and grasshoppers visit the flower heads.

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<i>Cassinia subtropica</i> Species of flowering plant

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<i>Cassinia longifolia</i> Species of flowering plant

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Cassinia decipiens is a species of flowering plant in the family Asteraceae and is endemic central New South Wales. It is a shrub with woolly-hairy young twigs, spreading, cylindrical leaves, and heads of creamy-brown to yellowish flowers arranged in a rounded cyme.

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<i>Cassinia macrocephala</i> Species of flowering plant

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References

  1. 1 2 3 "Ammobium alatum". Australian Plant Census. Retrieved 26 May 2020.
  2. Jeanes, Jeff; Stajsic, Val. "Ammobium alatum (Winged Everlasting)". Royal Botanic Gardens, Victoria. Retrieved 26 May 2020.
  3. Brown, Elizabeth A. "Ammobium alatum". Royal Botanic Garden Sydney. Retrieved 26 May 2020.
  4. 1 2 McDougall, Keith (2004). "Winged Everlasting Ammobium alatum - threatened species, weed or itinerant?". The Victorian Naturalist. 121 (6): 284–288. Retrieved 26 May 2020.
  5. "Ammobium alatum". APNI. Retrieved 26 May 2020.
  6. 1 2 3 Brown, Robert in Sims, John (1824). "Ammobium alatum". Botanical Magazine. 51: t. 2459.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  7. Backer, C.A. (1936) Verklarend woordenboek der wetenschappelijke namen van de in Nederland en Nederlandsch-Indië in het wild groeiende en in tuinen en parken gekweekte varens en hoogere planten (Edition Nicoline van der Sijs). p.90 (Explanatory dictionary of the scientific names of .. plants grown in the Netherlands and the Dutch East Indies...)
  8. William T. Stearn (1992). Botanical Latin. History, grammar, syntax, terminology and vocabulary (4th ed.). Portland, Oregon: Timber Press. p. 470.
  9. "Ammobium alatum". nzpcn.org.nz. New Zealand Plant Conservation Network. Retrieved 27 January 2020.

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