Gunnera cordifolia

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Gunnera cordifolia
Gunnera cordifolia by Jon Sullivan.jpg
Gunnera cordifolia expressing some female flowers
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Gunnerales
Family: Gunneraceae
Genus: Gunnera
Species:
G. cordifolia
Binomial name
Gunnera cordifolia
Hook.f., 1857
Distribution of gunnera cordifolia.png
Range of Gunnera cordifolia provided by Atlas of Living Australia

Gunnera cordifolia, often referred to as Tasmanian mudleaf, is an endemic core eudicot of Tasmania, Australia. It is one of 63 species pertaining to the Gunnera genus of herbaceous flowering plants. G. cordifolia can be easily identified by its dark olive-green, heart shaped leaves. It is predominantly found growing in sub-alpine boglands, [1] or in wet grassy areas as a perennial ground cover. [2]

Description

Gunnera cordifolia is found in highland grassy sedgeland and comprises less than 5% of the area's total coverage. [3] It is found in wet and boggy areas and seems to thrive in the shelter of tussocks and other sedges. [3] G. cordifolia belongs to the subgenus Milligania which contains 7 species across New Zealand. [4] It is the only species of Gunnera that is found in Tasmania.

Unlike its cousins in the subgenus Panke that can grow to gigantic heights of 2.5m, G. cordifolia prefers to grow close to the ground to a maximum height of 5cm. [5] It forms thick mat-like ground cover.

Gunnera cordifolia has thick, glossy, dark green to olive-green leaves. The leaf margins are cordate with fine white hairs. The leaves have evident palmate venation, or veins, that branch near the margins.

When flowering, typically between November and December, male and female flowers are on separate stems. The male flowers are as tall as or bigger than the leaves, while the female flowers are clustered together and much shorter than the leaves. Small, round, red fruit between 2-3mm will appear from December to July. [6]

Related Research Articles

<i>Gunnera</i> Genus of flowering plants in the family Gunneraceae

Gunnera is the sole genus of herbaceous flowering plants in the family Gunneraceae, which contains 63 species. Some species in this genus, namely those in the subgenus Panke, have extremely large leaves. Species in the genus are variously native to Latin America, Australia, New Zealand, Papuasia, Hawaii, insular Southeast Asia, Africa, and Madagascar. The stalks of some species are edible.

<i>Eucryphia</i> Genus of flowering trees and shrubs in the family Cunoniaceae

Eucryphia is a small genus of trees and large shrubs native to the south temperate regions of South America and coastal eastern Australia, mainly Tasmania. Sometimes placed in a family of their own, the Eucryphiaceae, more recent classifications place them in the Cunoniaceae. There are seven species, two in South America and five in Australia, and several named hybrids.

<i>Gunnera manicata</i> Species of flowering plant

Gunnera manicata, known as Brazilian giant-rhubarb or giant rhubarb, is a species of flowering plant in the family Gunneraceae from the coastal Serra do Mar Mountains of Santa Catarina, Parana and Rio Grande do Sul States, Brazil. In cultivation, the name G. manicata has regularly been wrongly applied to the hybrid with G. tinctoria, G. × cryptica.

<i>Correa lawrenceana</i> Species of flowering plant

Correa lawrenceana, commonly known as mountain correa, is a species of shrub or small tree of the family Rutaceae and is endemic to Australia. It has elliptical to egg-shaped leaves arranged in opposite pairs and cylindrical, greenish yellow to red flowers usually arranged singly or in groups of up to seven in leaf axils with the stamens protruding beyond the end of the corolla.

<i>Gaultheria hispida</i> Species of flowering plant

Gaultheria hispida, commonly known as the copperleaf snowberry, is an endemic eudicot of Tasmania, Australia. It is an erect multi-branched shrub, that can be found in wet forests and alpine woodlands. Its berries appear snowy white and leaves are tipped with a copper tinge, hence the common name.

<i>Anopterus glandulosus</i> Species of tree

Anopterus glandulosus, commonly known as native laurel or Tasmanian laurel, is a species of shrub or small tree in the family Escalloniaceae. Endemic to south and southwestern Tasmania, A. glandulosus is widespread in the moist understoreys of Tasmanian temperate rainforests and wet sclerophyll forests from sea level to mountainous regions below 1,200 metres (3,937 ft) above sea level.

<i>Dracophyllum milliganii</i> Species of flowering plant

Dracophyllum milliganii is a species of angiosperm in the family Ericaceae and the sub-family Epacridoideae. It is a distinctive alpine shrub, endemic to western Tasmania.

<i>Gahnia grandis</i> Species of plant

Gahnia grandis is a tussock-forming perennial plant found in southeastern mainland Australia and Tasmania.

<i>Pomaderris apetala</i> Species of tree

Pomaderris apetala is a small tree or large shrub from the family Rhamnaceae, growing in Victoria, New Zealand and Tasmania.

<i>Agastachys</i> Monotypic genus of flowering shrub in the family Proteaceae

Agastachys odorata, commonly known as the white waratah or fragrant candlebush, is the sole member of the genus Agastachys in the protea family. It is an evergreen shrub to small tree and is endemic to the heaths and button grass sedgelands of western Tasmania.

<i>Cenarrhenes</i> Monotypic genus of plants in the family Proteaceae

Cenarrhenes is a monytypic genus in the family Proteaceae containing the single species Cenarrhenes nitida, known as the Port Arthur plum or native plum. Cenarrhenes nitida is an evergreen shrub to small tree endemic to the rainforests and scrublands of western Tasmania. It bears white flowers in late spring followed by the development of fleshy fruit.

<i>Astelia alpina</i> Species of flowering plant

Astelia alpina called pineapple grass, silver astelia, or perching lily is a commonly found species in alpine and subalpine areas of Tasmania and the Australian Alps. It is a perennial herb that typically dominates its environment by growing in dense clusters, called mats, in alpine bogs. There are two subspecies: Astelia alpina var. novae hollandiae from New South Wales and Victoria and Astelia alpina var. alpina endemic to Tasmania. Both subspecies appear very similar to each other. The species was originally described by Robert Brown.

Pterostylis wapstrarum, commonly known as the fleshy greenhood, is a plant in the orchid family Orchidaceae and is endemic to Tasmania. Both flowering and non-flowering plants have a rosette of leaves lying flat on the ground and flowering plants have up to fifteen crowded green flowers with darker green veins.

<i>Chordifex hookeri</i> Species of flowering plant

Chordifex hookeri is commonly known as woolly buttonrush or cord-rush. It is a rush species of the genus Chordifex in the family Restionaceae. The species is endemic to Tasmania.

<i>Xyris marginata</i> Species of yelloweyed grass

Xyris marginata, commonly known as alpine yellow eye, is a monocot in the family Xyridaceae which is endemic to King Island (Tasmania) and Tasmania, commonly growing in button grass moorlands, at altitudes of up to 1070 meters (3,510.5 ft) above sea level. It was first collected by German-Australian botanist Ferdinand von Mueller in 1875.

<i>Abrotanella scapigera</i> Species of plant

Abrotanella scapigera is an endemic angiosperm of Tasmania, Australia. It is a member of the family Asteraceae, commonly found in alpine regions of northwest and south-central Tasmania. This species is named after its characteristic sparsely leaved flowering stem that distinguishes it from the other 18 species of the Genus.

<i>Olearia ledifolia</i> Species of shrub

Olearia ledifolia, commonly known as rock daisy bush, is a species of flowering plant of the family Asteraceae. It is endemic to Tasmania and found at higher altitudes where it grows as a low, compact bush with tough, leathery leaves and small white and yellow daisy-like "flowers" in summer.

<i>Gunnera <span style="font-style:normal;">×</span> cryptica</i> Hybrid between Gunnera manicata and Gunnera tinctoria

Gunnera × cryptica is a hybrid between Gunnera manicata and Gunnera tinctoria. Both species were introduced into cultivation in Western Europe towards the end of the 19th century. The hybrid occurred spontaneously in cultivation, in Europe probably around 1873. Both morphological and molecular analyses have shown that plants widely cultivated in Britain and Ireland under the name Gunnera manicata were all the hybrid, and that the true species G. manicata is no longer found there. This situation may also be the case in Europe and other parts of the world. The hybrid is more resistant to frost and adverse conditions than G. manicata, which is likely to be why it has replaced it in cultivation.

<i>Centella cordifolia</i> Species of herb

Centella cordifolia, commonly known as swamp pennywort or arthritis herb, is a trailing perennial herb native to Australia. The species is common in preferred local environments. It potentially has medicinal purposes and indigenous cultural significance. C. cordifolia can be sourced commercially at Australian plant nurseries.

<i>Diplaspis cordifolia</i> Species of flowering plant

Diplaspis cordifolia is an endemic Tasmanian herb, known commonly as western mountain-pennywort. It is found in alpine vegetation communities across Tasmania, most commonly in the West and South-western areas.

References

  1. O'Brien, Seamus (2018). "Trees and Shrubs of Tasmania". International Dendrology Society.
  2. Jordan, Greg (2019). "Key to Tasmanian Vascular Plants". University of Tasmania.
  3. 1 2 Vegetation Benchmarks: Moorland, sedgeland, rushland and peatland (PDF). Department of Natural Resources and Environment Tasmania. 2016.
  4. Wanntorp, Livia; Wanntorp, Hans-Erik; Rutishauser, Rolf (2003). "On the homology of the scales in Gunnera (Gunneraceae)". Botanical Journal of the Linnean Society. 142 (3): 301–308. doi:10.1046/j.1095-8339.2003.00185.x.
  5. "Chilean Rhubarb Gunnera tinctoria". Victorian Government Department of Primary Industries Melbourne. March 2008. Retrieved 3 April 2024.
  6. Duretto, Marco F (2009). "Gunneraceae". Flora of Tasmania Online.