Xerochrysum

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Xerochrysum
Xerochrysum subundulatum.jpg
Xerochrysum subundulatum
Alpine everlasting
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Gnaphalieae
Genus: Xerochrysum
Tzvelev
Species

See text

Xerochrysum (syn. Bracteantha) is a genus of flowering plants native to Australia. It was defined by Russian botanist Nikolai Tzvelev in 1990, preceding (and taking precedence over) Bracteantha which was described the following year. [1] [2]

Contents

Species

This genus and its species names were formerly included in Bracteantha and before that in Helichrysum .

As of September 2024 the authoritative Australian Plant Census recognises thirteen formally named species and five accepted species awaiting formal naming, description and publication: [3]

Species provisionally named, described and accepted by the authoritative Australian Plant Name Index while awaiting formal publication

A large scale molecular study conducted in 2022 expands the number of Xerochrysum species to 24, but as of 2024 has not been used for the Australian Plant Census. [4]

Related Research Articles

<i>Helichrysum</i> Genus of flowering plants

The genus Helichrysum consists of an estimated 600 species of flowering plants in the sunflower family (Asteraceae). The type species is Helichrysum orientale. They often go by the names everlasting, immortelle, and strawflower. The name is derived from the Ancient Greek words ἥλιος and χρῡσός.

<i>Allocasuarina</i> Genus of flowering plants

Allocasuarina, commonly known as sheoak or she-oak, is a genus of flowering plants in the family Casuarinaceae and is endemic to Australia. Plants in the genus Allocasuarina are trees or shrubs with soft, pendulous, green branchlets, the leaves reduced to scale-like teeth. Allocasuarinas are either monoecious or dioecious, the flowers never bisexual. Male and female flowers are arranged in spikes, the female spikes developing into cone-like structures enclosing winged seeds.

<i>Callitris</i> Genus of conifers

Callitris is a genus of coniferous trees in the Cupressaceae. There are 16 recognized species in the genus, of which 13 are native to Australia and the other three native to New Caledonia. Traditionally, the most widely used common name is cypress-pine, a name shared by some species of the closely related genus Actinostrobus.

<i>Prostanthera</i> Genus of plants

Prostanthera, commonly known as mintbush or mint bush, is a genus of about 100 species of flowering plants in the mint family Lamiaceae, and all are endemic to Australia. Plants are usually shrubs, rarely trees with leaves in opposite pairs. The flowers are arranged in panicles in the leaf axils or on the ends of branchlets. The sepals are joined at the base with two lobes. The petals are usually blue to purple or white, joined in a tube with two "lips", the lower lip with three lobes and the upper lip with two lobes or notched.

<i>Pimelea</i> Genus of flowering plants

Pimelea, commonly known as rice flowers, is a genus of plants belonging to the family Thymelaeaceae. There are about 150 species, including 110 in Australia and 36 in New Zealand.

<i>Eriocaulon</i> Genus of flowering plants

Eriocaulon is a genus of about 400 species commonly known as pipeworts, of monocotyledonous flowering plants in the family Eriocaulaceae.

<i>Olearia</i> Genus of flowering plants

Olearia, most commonly known as daisy-bush, is a genus of flowering plants belonging to the family Asteraceae, the largest of the flowering plant families in the world. Olearia are found in Australia, New Guinea and New Zealand. The genus includes herbaceous plants, shrubs and small trees. The latter are unusual among the Asteraceae and are called tree daisies in New Zealand. All bear the familiar daisy-like composite flowerheads in white, pink, mauve or purple.

<i>Philotheca</i> Genus of flowering plants

Philotheca is a genus of about fifty species of flowering plants in the family Rutaceae. Plants in this genus are shrubs with simple leaves arranged alternately along the stems, flowers that usually have five sepals, five petals and ten stamens that curve inwards over the ovary. All species are endemic to Australia and there are species in every state, but not the Northern Territory.

<i>Hovea</i> Genus of legumes

Hovea is a genus of about forty species of flowering plants in the family Fabaceae, and is endemic to Australia. Plants in this genus are sub-shrubs, shrubs or small trees with simple leaves and purple, blue or mauve flowers with a white centre. The fruit is a pod containing brown to blackish seeds. Species of Hovea occur in all Australian states, the Australian Capital Territory and the Northern Territory.

<i>Bursaria</i> Genus of flowering plants

Bursaria is a genus of eight species of flowering plants in the family Pittosporaceae and is endemic to Australia. They are shrubs or slender trees, often with spiny branches and have simple leaves, relatively small flowers with five sepals, five petals and five stamens, and fruit that is a flattened, thin-walled capsule.

<i>Phebalium</i> Genus of shrubs

Phebalium is a genus of thirty species of shrubs or small trees in the family Rutaceae and is endemic to Australia. The leaves are arranged alternately, simple and often warty, the flowers arranged singly or in umbels on the ends of branchlets or in leaf axils, usually with five sepals, five petals and ten stamens. There are about thirty species and they are found in all Australian states but not in the Northern Territory.

<i>Bossiaea</i> Genus of legumes

Bossiaea is a genus of about 78 species of flowering plants in the pea family Fabaceae and is endemic to Australia. Plants in this genus often have stems and branches modified as cladodes, simple, often much reduced leaves, flowers with the upper two sepal lobes larger than the lower three, usually orange to yellow petals with reddish markings, and the fruit a more or less flattened pod.

<i>Billardiera</i> Genus of plants

Billardiera, commonly known as appleberries, snot berries, or bluebell creepers, is a genus of flowering plants in the family, Pittosporaceae and is endemic to Australia. Plants in the genus Billardiera are woody scramblers, climbers or twiners with elliptic, lance-shaped or linear leaves arranged alternately along the stems, the flowers with petals that are joined to form a tube at the base with spreading lobes, and succulent or fleshy fruit.

<i>Daviesia</i> Genus of plants

Daviesia, commonly known as bitter-peas, is a genus of about 130 species of flowering plants in the family Fabaceae, and is endemic to Australia. Plants in the genus Daviesia are shrubs or small trees with leaves modified as phyllodes or reduced to scales. The flowers are arranged singly or in groups, usually in leaf axils, the sepals joined at the base with five teeth, the petals usually yellowish with reddish markings and the fruit a pod.

<i>Lepidosperma</i> Genus of grass-like plants

Lepidosperma is a genus of flowering plant of the family Cyperaceae. Most of the species are endemic to Australia, with others native to southern China, southeast Asia, New Guinea, New Caledonia and New Zealand.

<i>Xerochrysum viscosum</i> Species of flowering plant

Xerochrysum viscosum is a flowering plant in the family Asteraceae. The plant is native to Australia, occurring in Queensland, New South Wales, Victoria, Tasmania and the Australian Capital Territory

<i>Xerochrysum subundulatum</i> Species of flowering plant

Xerochrysum subundulatum is a flowering plant in the family Asteraceae, native to Australia, growing in Victoria, New South Wales and Tasmania.

<i>Vittadinia</i> Genus of flowering plants

Vittadinia is a genus of Australian and New Zealand plants in the tribe Astereae within the family Asteraceae.

<i>Cyanothamnus</i> Genus of plants

Cyanothamnus is a genus of flowering plant in the family Rutaceae, native to Australia. Plants in the genus Cyanothamnus are erect or spreading shrubs usually with pinnate leaves arranged in opposite pairs, the leaves or leaflets flat. The flowers are arranged singly or in cymes with minute bracts. The petals are usually pink or white, sometimes blue or yellowish-green.

<i>Cycnogeton</i> Genus of flowering plants

Cycnogeton is a genus of plants in the family Juncaginaceae described as a genus in 1838. It is native to Australia and New Guinea.

References

  1. Bayer, R. J. (2001). "Xerochrysum Tzvelev, a pre-existing generic name for Bracteantha Anderb. & Haegi (Asteraceae: Gnaphalieae)". Kew Bulletin. 56 (4): 1013–1015. Bibcode:2001KewBu..56.1013B. doi:10.2307/4119317. JSTOR   4119317.
  2. Wilson, Paul G. (2002). "Xerochrysum the correct name for the genus Bracteantha". Australian Plants. 21 (173): 398.
  3. "Vascular Plants". biodiversity.org.au. Retrieved 2024-09-06.
  4. Collins, Timothy L.; Schmidt-Lebuhn, Alexander N.; Andrew, Rose L.; Telford, Ian R. H.; Bruhl, Jeremy J. (2022-06-09). "There's gold in them thar hills! Morphology and molecules delimit species in Xerochrysum (Asteraceae; Gnaphalieae) and reveal many new taxa". Australian Systematic Botany. 35 (2): 120–185. doi: 10.1071/SB21014 . ISSN   1446-5701.