Myoporum parvifolium

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Creeping Boobialla
Myoporumparvifolium.JPG
Myoporum parvifolium at San Diego Botanic Garden
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Scrophulariaceae
Genus: Myoporum
Species: M. parvifolium
Binomial name
Myoporum parvifolium
R.Br.[1]
Synonyms
  • Myoporum humile R.Br.

Myoporum parvifolium, commonly known as creeping boobialla, creeping myoporum, dwarf native myrtle or small leaved myoporum[1] is a plant in the figwort family, Scrophulariaceae. It is a low, spreading shrub with long, trailing stems and white, star-shaped flowers and is endemic to southern Australia including Flinders Island.

Description[edit]

Creeping boobialla is a prostrate, speading shrub sometimes forming a mat 3 metres (10 ft) in diameter. Its leaves are fleshy and glabrous, usually 18–40 millimetres (0.7–2 in) long, 3–6.5 millimetres (0.1–0.3 in) wide and egg-shaped with the narrower end towards the base. They are arranged alternately, sometimes have a few serrations on the margins near the leaf tip and sometimes have raised, wart-like tubercles on their surface.[2][3][4][5]

White flowers with purple spots appear in the leaf axils singly or in clusters of 2 or 3 on a stalk 7.5–33 millimetres (0.3–1 in) long. The flowers have 5 lance-shaped sepals and 5 petals joined at their bases to form a tube. The tube is about 3 millimetres (0.1 in) long and the lobes are spreading, blunt and 3–4 millimetres (0.1–0.2 in) long. As a result, the diameter of the flower is about 75 millimetres (3 in). There are 4 stamens which extend beyond the petals. Peak flowering times are winter to summer in New South Wales and October to March in South Australia[3][4] and the fruit that follows are succulent, rounded, yellowish-white and up to 8.5 millimetres (0.3 in) in diameter.[2][3][4]

Taxonomy and naming[edit]

Myoporum parvifolium was first formally described by botanist Robert Brown in Prodromus Florae Novae Hollandiae in 1810.[1][6] The specific epithet (parvifolium) is derived from the Latin words parvus meaning "small" or "little"[7] and folium meaning "a leaf".[8]

Distribution and habitat[edit]

Myoporum parvifolium occurs in the south-west corner of New South Wales,[3] and from the Eyre Peninsula in South Australia eastwards[4] to Victoria. It is common along much of the Murray River in South Australia.[2] It often grows on limestone cliffs, along river flats and in woodland in sandy sometimes saline soils.[2][3]

Use in horticulture[edit]

Creeping boobialla is a useful ground cover and is often cultivated for that purpose. It prefers a well-drained, sunny position but is hardy in most situations. It is usually propagated from cuttings and has been used as a rootstock for more difficult related species such as Eremophila.[5][9]

References[edit]

  1. ^ a b c "Myoporum parvifolium". APNI. Retrieved 26 November 2015. 
  2. ^ a b c d Chinnock, R.J. (Bob) (2007). Eremophila and allied genera : a monograph of the plant family Myoporaceae (1st ed.). Dural, NSW: Rosenberg. pp. 130–131. ISBN 9781877058165. 
  3. ^ a b c d e R.J. Chinnock. "New South Wales Flora Online: Myoporum parvifolium". Royal Botanic Gardens & Domain Trust, Sydney, Australia. 
  4. ^ a b c d "Myoporum parvifolium". Electronic Flora of South Australia Fact Sheet. State Herbarium of South Australia. Retrieved 2008-06-13. 
  5. ^ a b "Myoporum parvifolium". Australian Native Plants Society Australia. Retrieved 26 November 2015. 
  6. ^ Brown, Robert (1810). Prodromus Florae Novae Hollandiae (Volume 1). London. p. 516. Retrieved 26 November 2015. 
  7. ^ "parvus". Wiktionary. Retrieved 26 November 2015. 
  8. ^ "folium". Wiktionary. Retrieved 26 November 2015. 
  9. ^ Wrigley, John W.; Fagg, Murray (1983). Australian native plants : a manual for their propagation, cultivation and use in landscaping (2nd ed.). Sydney: Collins. pp. 87–88. ISBN 0002165759.