Eriostemon australasius
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| Pink wax flower | |
|---|---|
 | |
| Eriostemon australasius foliage and flowers | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Sapindales |
| Family: | Rutaceae |
| Genus: | Eriostemon |
| Species: | E. australasius |
| Binomial name | |
| Eriostemon australasius | |
| Synonyms[1] | |
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Eriostemon australasius commonly known as pink wax flower is a plant in the citrus family Rutaceae and is endemic to eastern Australia. It is an erect, bushy shrub with narrow oblong leaves and pink flowers with five petals in late winter and early spring.
Eriostemon australasius is an erect, bushy shrub which grows to a height of 1–2 m (3–7 ft). It has simple leaves that are narrow oblong in shape, 20–80 millimetres (0.8–3 in) long, 8–14 millimetres (0.3–0.6 in) long and are covered with tiny star-like hairs when young, although the hairs may only be visible with a magnifying glass. The flowers are arranged singly in leaf axils, mostly near the ends of the branches, on a stalk 4–12 millimetres (0.2–0.5 in) long. At the base of each flower are five to twelve sepal-like bracteoles. There are five pink to reddish petals which are about 18 millimetres (0.7 in) long and are covered with similar hairs to those on the leaves, but become smooth with maturity. Flowering occurs in late winter and early spring.[2][3]
Taxonomy and naming
Eriostemon australasius was first formally described in 1805 by Christiaan Persoon and the description was published in Synopsis plantarum, seu enchiridium botanicum, complectens enumerationem systematicam specierum.[4][5] The specific epithet (australasius) is derived from the Latin word australis meaning "south".[6] The common name is derived from the thick waxy petals.[7]