Polycalymma | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Subfamily: | Asteroideae |
Tribe: | Gnaphalieae |
Genus: | Polycalymma F.Muell. & Sond. |
Species: | P. stuartii |
Binomial name | |
Polycalymma stuartii | |
Synonyms [1] | |
Myriocephalus stuartii(F.Muell. & Sond. ex F.Muell. & Sond.) Benth. |
Polycalymma stuartii, the poached egg daisy, is an Australian daisy found abundantly on sand plains and dunefields. [2] Its common name is derived from the poached egg-like appearance of its white flower and yellow centre. It is the only known species of the genus Polycalymma; a member of the tribe Gnaphalieae within the family Asteraceae. [3] [4] [5] [6] [7]
The poached egg daisy was named after McDouall Stuart [8] and is Indigenous to a large area of Central Australia. The first scientific description was written in 1853.
The poached egg daisy is found abundantly during good seasons in open communities on sand plans and dune fields [10] in Western Australia, Northern Territory, South Australia, Queensland, New South Wales and Victoria. [11] [12] This annual daisy thrives in light to medium soil, open sunny communities and is resistant to drought and frost.
Two (dicot) narrow lance shaped cotyledon with a tapered base, pointed tips, edges that convex to parallel and a hairless surface.
Narrow lance shaped first leaves with pointed tips and covered in dense short hair.
Alternating leaves with no petiole. leaves are a light green colour, measure 20-70mm long with narrow parallel sides to lance shape with pointed tip, present woolly hairs on upper side and sticky hairs on underside and have smooth edges.
Stem is erect and stout, standing 100-500mm tall, somewhat tufted ad is woolly or very sticky with glandular hairs.
Flower heads are compound, hemispherical and white with a yellow centre resembling a poached egg and measure 20-40mm in diameter.
Flowers are tubular, bisexual and yellow with white 5-7mm long petals.
Black cylindrical achene that are woolly or silky with long white hairs.
Taproot system.
8 week lifecycle
Calocephalus is a genus of flowering plants in the family Asteraceae. It is endemic to Australia, where it is represented in every state.
Calotis is a genus of herbs or small shrubs in the daisy family Asteraceae. Most of the species are native to Australia, while two occur in Asia.
Leiocarpa is a genus of plants in the family Asteraceae, native to Australia.
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Olearia stuartii is a species of flowering plant in the family Asteraceae and is endemic arid parts of inland Australia. It is compact, spreading shrub or undershrub with lance-shaped leaves and blue to mauve and yellow, daisy-like inflorescences.
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Olearia muelleri, commonly known as Mueller daisy bush, Mueller's daisy bush or Goldfields daisy, is a species of flowering plant in the family Asteraceae and is endemic to southern continental Australia. It is a compact or spreading shrub with scattered spatula-shaped to egg-shaped leaves with the narrower end towards the base, and white and yellow, daisy-like inflorescences.
Xylopia macrantha is a species of plant in the Annonaceae family. It is native to Colombia, Costa Rica and Panama. José Jerónimo Triana and Jules Émile Planchon, the botanists who first formally described the species, named it after its large flowers.
Xylopia micans is a species of plant in the Annonaceae family. It is native to Colombia, Ecuador and Peru. Robert Elias Fries, the botanist who first formally described the species, named it after the gleaming hairs on the undersides of its leaves.
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Condylocarpon amazonicum is a species of plant in the Apocynaceae family. It is native to Bolivia, Brazil, Suriname, and Venezuela. Friedrich Markgraf, the botanist who first formally described the species, using the basionym Anechites amazonicus, named it after the area near the Amazon River in Pará Brazil where the specimen he examined was collected by Adolpho Ducke.
Condylocarpon guyanense is a species of plant in the Apocynaceae family. It is native to Brazil, French Guiana, and Guyana. René Louiche Desfontaines, the botanist who first formally described the species, named it after Guyana where Joseph Martin collected the specimen he examined.
Condylocarpon isthmicum is a species of plant in the Apocynaceae family. It is native to Argentina, Brazil, Paraguay and Uruguay. José Mariano de Conceição Vellozo, the botanist who first formally described the species, named it after the narrow neck connecting the two sections of its fruit.
Condylocarpon pubiflorum is a species of plant in the Apocynaceae family. It is native to Bolivia, Brazil, Colombia, Peru and Venezuela. Johannes Müller Argoviensis, the botanist who first formally described the species, named it after an invalid nomen nudum, Hortsmania pubiflora, previously offered by George Bentham.
Cryptolepis africana is a species of plant in the Apocynaceae family. It is native to Kenya. Arthur Allman Bullock, the botanist who first formally described the species, using the synonymous subspecies name Cryptolepis sinensis subsp. africana, named it after the location where the sample he examined was collected in East Africa.
Cryptolepis delagoensis is a species of plant in the Apocynaceae family. It is native to Mozambique and South Africa. Rudolf Schlechter, the botanist who first formally described the species, named it after the location where the specimen he examined was found near Maputo Bay which was then called Delagoa Bay.