Epacris rhombifolia
| Mountain coral heath | |
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| Epacris rhombifolia in Barrington Tops National Park | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Ericales |
| Family: | Ericaceae |
| Genus: | Epacris |
| Species: | E. rhombifolia |
| Binomial name | |
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Epacris rhombifolia (L.R.Fraser & Vickery) Menadue |
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| Synonyms | |
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Epacris rhombifolia commonly known as mountain coral heath, is a plant in the heath family Ericaceae and is endemic to eastern Australia. It is an erect, multi-stemmed shrub with broad, rhombic leaves and white flowers with four petals, the flowers spreading down the branches. It only grows in wet, subalpine heath and is sometimes regarded as a variety of Epacris microphylla.
Epacris rhombifolia is an erect shrub with several main stems and which grows to a height of 2 metres (7 ft). The young stems are reddish-brown and covered with short, soft, downy hairs when young. The leaves are rhombic, 2.0–4.5 mm (0.08–0.2 in) long and 1.5–3.5 mm (0.06–0.1 in) wide, more or less flat and overlap each other when young. They are , have indistinct veins and a petiole 0.3–0.8 mm (0.01–0.03 in) long. The flowers are white, 3.8–5 mm (0.1–0.2 in) wide and arranged in leaf , spreading down the branches and have white petals forming a bell-shaped tube. The buds are surrounded by 16-20 white, egg-shaped bracts and white, egg-shaped sepals 1.5–2.5 mm (0.06–0.1 in) long and longer than the petal tube. The petal tube is about 1 mm (0.04 in) long, 1.5–2 mm (0.06–0.08 in) wide and the lobes are about 1.7 mm (0.07 in) long and do not overlap. Flowering occurs from December to March and the fruit that follows are capsules about 2 mm (0.08 in) long and wide.
Mountain coral heath was first formally described in 1810 by Lilian Fraser and Joyce Vickery, who gave it the name Epacris microphylla var. rhombifolia. The description was published in Journal and Proceedings of the Linnean Society of New South Wales. The variety was raised to species level in 2015 by Yvonne Menadue and Ron Crowden. The specific epithet (rhombifolia) is derived from the Latin words rhombus meaning "an equilateral parallelogram with unequal pairs of angles" and folium meaning "leaf".
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Wikipedia