Pimelea simplex

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Pimelea simplex
Pimelea simplex.jpg
In the Gawler Ranges
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Thymelaeaceae
Genus: Pimelea
Species:
P. simplex
Binomial name
Pimelea simplex
Synonyms [1]

Banksia simplex(F.Muell.) Kuntze

Pimelea simplex, commonly known as desert rice-flower, [2] is a species of flowering plant in the family Thymelaeaceae and is endemic to inland Australia. It is a herb or semi-woody annual with narrowly elliptic to linear leaves, and compact heads of densely hairy white to yellowish-green flowers.

Contents

Description

Pimelea simplex is herb or semi-woody annual that typically grows to a height of 5–50 cm (2.0–19.7 in) and has hairy young stems. The leaves are arranged alternately along the stems and are usually narrowly elliptic, 3–30 mm (0.12–1.18 in) long and 0.8–3 mm (0.031–0.118 in) wide on a short petiole. The flowers are bisexual and borne on the ends of branches in dense clusters of many white to yellowish-green flowers, the rachis densely covered with fine hairs. The floral tube is 2.5–5.0 mm (0.098–0.197 in) long, the sepals erect and 0.4–1 mm (0.016–0.039 in) long. Flowering occurs from June to October. [2] [3] [4] [5]

Taxonomy

Pimelea simplex was first formally described in 1853 by Ferdinand von Mueller in the journal Linnaea . [6] [7] The specific epithet, (simplex) means "simple" or "undivided". [8]

In 1983, S. Threlfall described two subspecies of P. simplex in the journal Brunonia , and the names are accepted by the Australian Plant Census :

Distribution and habitat

Subspecies continua tends to grow on soils on heavier texture than subsp. simplex. Both species are found in inland Australia, but subsp. simpex has a wider distribution, occurring throughout most of South Australia, western New South Wales, central and south-western Queensland, and the far north-west of Victoria. Subspecies continua does not appear to occur in Victoria but is known from a few collections in the Northern Territory. [10] [13] [11] [14] [3] [15]

Conservation status

Pimelea simplex is listed as "near threatened" under the northern Territory Territory Parks and Wildlife Conservation Act . [16]

Related Research Articles

<i>Pimelea</i> Genus of flowering plants

Pimelea, commonly known as rice flowers, is a genus of plants belonging to the family Thymelaeaceae. There are about 150 species, including 110 in Australia and 36 in New Zealand.

<i>Pimelea microcephala</i> Species of plant

Pimelea microcephala, commonly known as mallee rice-flower or shrubby rice-flower is a species of flowering plant in the family Thymelaeaceae and is endemic to mainland Australia. It is an erect shrub with compact heads of male or female, white to yellow or greenish flowers on separate plants, the heads surrounded by 2 or 4 leaf-like involucral bracts.

<i>Pimelea humilis</i> Species of plant

Pimelea humilis, also known as common riceflower or dwarf riceflower, is a species of flowering plant in the family Thymelaeaceae and is endemic to south-eastern Australia. It is an erect or scrambling shrub with hairy stems, elliptic to lance-shaped leaves and heads of 12 to 52 of creamy-white, bisexual or female flowers.

<i>Pimelea flava</i> Species of plant

Pimelea flava is a species of flowering plant in the family Thymelaeaceae and is endemic to south-eastern Australia. It is a shrub with narrowly elliptic to egg-shaped leaves arranged in opposite pairs, and compact clusters of 9 or more flowers with 2 or 4 elliptic to circular involucral bracts at the base. The flowers and bracts are white or yellow, depending on subspecies.

<i>Pimelea octophylla</i> Species of plant

Pimelea octophylla, commonly known as woolly riceflower or downy riceflower, is a species of flowering plant in the family Thymelaeaceae and is endemic to south-eastern continental Australia. It is an erect shrub with densely hairy young stems, narrowly elliptic leaves and heads of 22 to 45 densely hairy, cream-coloured to pale yellow flowers surrounded by 6 to 12 leaf-like involucral bracts.

<i>Pimelea spinescens</i> Species of shrub

Pimelea spinescens, commonly known as plains rice-flower, spiny rice-flower or prickly pimelea, is a species of flowering plant in the family Thymelaeaceae and is endemic to Victoria. It is a spreading undershrub with elliptic leaves arranged in opposite pairs, and heads of white, cream-coloured or yellow flowers surrounded by 4 elliptic, leaf-like involucral bracts.

<i>Pimelea serpyllifolia</i> Species of plant


Pimelea serpyllifolia, commonly known as thyme riceflower, is a species of flowering plant in the family Thymelaeaceae and is endemic to southern Australia. It is an erect shrub with narrowly elliptic to spatula-shaped leaves, and compact heads of 4 to 12 yellow, yellowish-green or white flowers surrounded by 2 or 4 leaf-like involucral bracts. Male and female flowers are borne on separate plants.

<i>Pimelea ligustrina</i> Species of plant

Pimelea ligustrina is a species of flowering plant in the family Thymelaeaceae, and is endemic to south-eastern Australia. It is a shrub with lance-shaped or narrowly elliptic leaves arranged in opposite pairs, and clusters of creamy-white, white or pinkish flowers usually surrounded by 4 or 8, greenish to reddish brown involucral bracts.

<i>Pimelea ciliolaris</i> Species of shrub

Pimelea ciliolaris is a species of flowering plant in the family Thymelaeaceae and is endemic to a restricted area of New South Wales. It is a stunted shrub with narrowly elliptic leaves and heads of densely hairy, cream-coloured to pale yellow flowers.

<i>Pimelea glauca</i> Species of shrub

Pimelea glauca, commonly known as smooth riceflower, is a species of flowering plant in the family Thymelaeaceae and is endemic to eastern Australia. It has elliptic to more or less lance-shaped or linear leaves and creamy-white flowers arranged in heads of seven or more on the ends of the stems, with four lance-shaped to egg-shaped bracts at the base of the inflorescence.

<i>Pimelea neoanglica</i> Species of shrub

Pimelea neoanglica, commonly known as poison pimelea or scanty riceflower, is a species of flowering plant in the family Thymelaeaceae and is endemic to inland areas of eastern Australia. It is an erect, dioecious shrub with narrowly elliptic leaves and heads of greenish-yellow flowers.

<i>Pimelea curviflora</i> Species of plant

Pimelea curviflora, also known as curved rice-flower, is a shrub in the family Thymelaeaceae and is endemic to Australia. It is a small, hairy shrub with greenish-yellow or red tubular flowers.

<i>Pimelea axiflora</i> Species of shrub

Pimelea axiflora, commonly known as bootlace bush, is a small shrub in the family Thymelaeaceae and is endemic to Australia. It is a small shrub with whitish flowers on mostly smooth stems.

<i>Pomaderris betulina</i> Species of shrub

Pomaderris betulina, commonly known as birch pomaderris, is a species of flowering plant in the family Rhamnaceae and is endemic to south-eastern continental Australia. It is a shrub with hairy young stems, lance-shaped to oblong or elliptic leaves, and yellowish flowers.

<i>Pimelea trichostachya</i> Species of shrub

Pimelea trichostachya, commonly known as annual riceflower, spiked riceflower or flax weed, is a species of flowering plant in the family Thymelaeaceae and is endemic to continental Australia. It is a slender, semi-woody, annual shrub with narrowly elliptic or linear leaves and densely hairy, white or yellow flowers and green, purple-tinged fruit. It is toxic to livestock.

Pimelea elongata is a species of flowering plant in the family Thymelaeaceae and is endemic to inland areas of eastern Australia. It is a slender forb with linear to narrowly elliptic leaves and spikes of hairy, yellowish-green flowers.

<i>Pimelea latifolia</i> Species of plant

Pimelea latifolia is a species of flowering plant in the family Thymelaeaceae and is endemic to eastern Australia. It is a shrub with hairy young stems, egg-shaped leaves with the narrower end towards the base, and greenish-yellow to white, tube-shaped flowers.

Pimelea micrantha, commonly known as silky rice-flower is a species of flowering plant in the family Thymelaeaceae and is endemic to southern Australia. It is a much-branched undershrub with narrowly elliptic to lance-shaped leaves and compact clusters or heads of densely hairy, creamy white flowers.

Pimelea penicillaris, commonly known as sandhill riceflower, is a species of flowering plant in the family Thymelaeaceae and is endemic to Central Australia. It is an erect, dioecious shrub with densely hairy young stems, densely hairy, pale silvery green, elliptic leaves, and compact heads of white to yellow or pink flowers surrounded by 6 to 12 silky-hairy, silvery or brownish involucral bracts.

<i>Pimelea stricta</i> Species of plant

Pimelea stricta, commonly known as gaunt rice-flower, is a species of flowering plant in the family Thymelaeaceae and is endemic to south-eastern continental Australia. It is an erect shrub with narrowly elliptic or linear leaves, and compact heads of densely hairy, creamy-white to yellow flowers surrounded by 4 egg-shaped involucral bracts.

References

  1. 1 2 "Pimelea simplex". Australian Plant Census. Retrieved 5 April 2023.
  2. 1 2 Harden, Gwen. "Pimelea simplex". Royal Botanic Garden Sydney. Retrieved 5 April 2023.
  3. 1 2 Rye, Barbara L. "Pimelea simplex". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 5 April 2023.
  4. ↑ "Pimelea simplex". State Herbarium of South Australia. Retrieved 5 April 2023.
  5. ↑ Entwisle, Timothy J.; Stajsic, Val. "Pimelea simplex subsp. simplex". Royal Botanic Gardens Victoria. Retrieved 5 April 2023.
  6. ↑ "Pimelea simplex". APNI. Retrieved 5 April 2023.
  7. ↑ von Mueller, Ferdinand (1853). "Diagnoses et descriptiones plantarum novarum, quas in Nova Hollandia australi praecipue in regionibus interioribus". Linnaea: ein Journal für die Botanik in ihrem ganzen Umfange, oder Beiträge zur Pflanzenkunde. 25: 443. Retrieved 5 April 2023.
  8. ↑ William T. Stearn (1992). Botanical Latin. History, grammar, syntax, terminology and vocabulary (4th ed.). Portland, Oregon: Timber Press. p. 950.
  9. ↑ "Pimelea simplex subsp. continua". Australian Plant Census. Retrieved 5 April 2023.
  10. 1 2 Harden, Gwen. "Pimelea simplex subsp. continua". Royal Botanic Garden Sydney. Retrieved 5 April 2023.
  11. 1 2 "Pimelea simplex subsp. continua". State Herbarium of South Australia. Retrieved 5 April 2023.
  12. ↑ "Pimelea simplex subsp. simplex". Australian Plant Census. Retrieved 5 April 2023.
  13. 1 2 Harden, Gwen. "Pimelea simplex subsp. simplex". Royal Botanic Garden Sydney. Retrieved 5 April 2023.
  14. 1 2 "Pimelea simplex subsp. simplex". State Herbarium of South Australia. Retrieved 5 April 2023.
  15. ↑ Rye, Barbara L. "Pimelea simplex subsp. continua". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 5 April 2023.
  16. ↑ "Pimelea simplex". Northern Territory Government. Retrieved 5 April 2023.
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