Small river buttercup | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Ranunculales |
Family: | Ranunculaceae |
Genus: | Ranunculus |
Species: | R. amphitrichus |
Binomial name | |
Ranunculus amphitrichus | |
Ranunculus amphitrichus commonly known as the small river buttercup, [2] is a flowering plant in the family Ranunculaceae. It has glossy green leaves, daisy-like yellow flowers and grows in Western Australia, southeastern Australia and New Zealand.
Ranunculus amphitrichus is an aquatic perennial, stems arising from leaf clusters and sparsely covered with soft, weak, thin hairs or smooth. The leaves are a glossy green, more or less circular, 1–10 cm (0.39–3.94 in) in diameter, lobed, sometimes floating, petiole 5–24 cm (2.0–9.4 in) long, yellow flowers on branched or simple stems 7–35 cm (2.8–13.8 in) long, usually five petals, narrowly oblanceolate or oblong and wedge-shaped at the base, 3–5 mm (0.12–0.20 in) long and 0.8–1.8 mm (0.031–0.071 in) wide. Flowering occurs from December to March and the fruit is a green achene thickly covered with soft, weak hairs. [2] [3]
Ranunculus amphitrichus was first formally described in 1885 by William Colenso and the description was published in Transactions and Proceedings of the New Zealand Institute . [4] [5] The specific epithet (amphitrichus) means "both sides" and "hair". [6]
Small river buttercup grows in swamps, lakes and slow-flowing streams in shallow water in Western Australia, South Australia, New South Wales, Tasmania, Australian Capital Territory and New Zealand. [7]
Ficaria verna, commonly known as lesser celandine or pilewort, is a low-growing, hairless perennial flowering plant in the buttercup family Ranunculaceae. It has fleshy dark green, heart-shaped leaves and distinctive flowers with bright yellow, glossy petals. Native to Europe and Western Asia, it is now introduced in North America, where it is known by the common name fig buttercup and considered an invasive species. The plant is poisonous if ingested raw and potentially fatal to grazing animals and livestock such as horses, cattle, and sheep. For these reasons, several US states have banned the plant or listed it as a noxious weed. It prefers bare, damp ground and is considered by horticulturalists in the United Kingdom as a persistent garden weed; nevertheless, many specialist plantsmen, nursery owners and discerning gardeners in the UK and Europe collect selected cultivars of the plant, including bronze-leaved and double-flowered ones. Emerging in late winter with flowers appearing late February through May in the UK, its appearance across the landscape is regarded by many as a harbinger of spring.
Ranunculus is a large genus of about 1750 species of flowering plants in the family Ranunculaceae. Members of the genus are known as buttercups, spearworts and water crowfoots.
Ranunculus repens, the creeping buttercup, is a flowering plant in the buttercup family Ranunculaceae, native to Europe, Asia and northwestern Africa. It is also called creeping crowfoot and sitfast.
Ranunculus bulbosus, commonly known as bulbous buttercup or St. Anthony's turnip, is a perennial flowering plant in the buttercup family Ranunculaceae. It has bright yellow flowers, and deeply divided, three-lobed long-petioled basal leaves.
Ranunculus acris is a species of flowering plant in the family Ranunculaceae, and is one of the more common buttercups across Europe and temperate Eurasia. Common names include meadow buttercup, tall buttercup, common buttercup and giant buttercup.
Ranunculus lyallii, is a species of Ranunculus (buttercup), endemic to New Zealand, where it occurs in the South Island and on Stewart Island at altitudes of 700–1,500 m. R. lyallii is the largest species in the genus Ranunculus, growing over a metre in height.
Helleborus foetidus, known variously as stinking hellebore, dungwort, setterwort and bear's foot, is a species of flowering plant in the buttercup family Ranunculaceae, native to the mountainous regions of Central and Southern Europe and Asia Minor. It is found wild in many parts of England, especially on limestone soil.
Eremophila debilis, the winter apple or amulla, is a flowering plant in the figwort family Scrophulariaceae, and is endemic to an area extending from north Queensland to near the border between New South Wales and Victoria in Australia. It is a prostrate shrub with elliptic to lance-shaped or egg-shaped leaves and white, rarely deep mauve flowers.
Ranunculus papulentus, commonly known as the large river buttercup, is a buttercup that is endemic to south-eastern Australia.
Ranunculus lappaceus, commonly known as the common buttercup, Australian buttercup or Yarrakalgamba, is found across eastern Australia. Like buttercups elsewhere, it is a perennial herb with yellow flowers appearing in spring and summer.
Ranunculus abortivus is a species of flowering plant in the buttercup family, Ranunculaceae. Its common names include littleleaf buttercup, small-flower crowfoot, small-flowered buttercup, and kidneyleaf buttercup. It is widespread across much of North America, found in all ten Canadian provinces as well as Yukon and the Northwest Territories, and most of the United States, except Hawaii, Oregon, California, and parts of the Southwest.
Ranunculus acraeus is a species of flowering plant in the buttercup family, Ranunculaceae, found in New Zealand. This rare and native species strictly grows on an alpine habitat, hence the name acraeus, meaning “on high”. The plant grows about 50 cm (20 in) in width, and is covered in beautiful, bright yellow flowers. It may be mistaken for R. piliferus but research has shown R. acraeus to be its own distinctive species.
Pterostylis auriculata is a species of orchid endemic to New Zealand. Unlike many other greenhood orchids, this species lacks a rosette of leaves but instead only has leaves on the flowering stem. All parts of the plant are glossy and there is a single green flower with a reddish tinge.
Ranunculus viridis, the Mount Allen buttercup, is a critically endangered species of alpine Ranunculus (buttercup), endemic to Rakiura/Stewart Island, New Zealand, where it occurs at altitudes of 700 metres (2,300 ft) on Mount Allen in the Tin Range.
Brachyscome graminea, commonly known as grass daisy, is a perennial herb in the family Asteraceae and is endemic to Australia. It has mostly mauve-pink or purple daisy-like flowers and a yellow centre.
Acacia pubifolia commonly known as velvet wattle, is a flowering plant in the family Fabaceae and is endemic to northern New South Wales. It is an upright or spreading tree with bright yellow flowers.
Ranunculus allegheniensis is a species of flowering plant in the buttercup family, Ranunculaceae. Its common names include Allegheny Mountain buttercup and Allegheny crowfoot.
Rhodanthe floribunda, commonly known as common white sunray, is a flowering, herbaceous plant in the family Asteraceae. It is a small, upright or decumbent plant with white flowers, yellow florets and is endemic to Australia.
Ranunculus pimpinellifolius, commonly known as bog buttercup, is a flowering plant in the family Ranunculaceae and grows in eastern Australia. It is a low growing perennial with divided green leaves and yellow flowers.
Swainsona sericea commonly known as silky Swainson-pea or silky pea, is a flowering plant in the family Fabaceae. It is a small perennial with greyish-green leaves, purple flowers and grows in New South Wales, Victoria and South Australia.