Pimelea flava

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Pimelea flava
Pimelea flava subsp. flava.jpg
Pimelea flava subsp. flava
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Thymelaeaceae
Genus: Pimelea
Species:
P. flava
Binomial name
Pimelea flava
Subspecies

Pimelea flava subsp. dichotoma(Schltdl.) Threlfall
Pimelea flavaR.Br. subsp. flava

Contents

Synonyms [1]

Banksia flava(R.Br.) Kuntze
Calyptrostegia flava(R.Br.) Endl.

Habit of subsp. flava Pimelea flava habit.jpg
Habit of subsp. flava

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.

Description

Pimelea flava is a shrub that typically grows to a height of 0.3–2.5 m (1 ft 0 in – 8 ft 2 in) and has hairy young stems. The leaves are arranged in opposite pairs, often crowded, narrowly elliptic to egg-shaped with the narrower end towards the base or almost circular, 2–10 mm (0.079–0.394 in) long, 1–6 mm (0.039–0.236 in) wide on a short petiole and glabrous. The flowers are arranged in compact clusters of 9 to many on the ends of branches on a peduncle 1–10 mm (0.039–0.394 in) long, with 2 to 4 leaf-like, elliptic, leaf-like involucral bracts 3–16 mm (0.12–0.63 in) long and 2–10 mm (0.079–0.394 in) wide. Each flower is either male or female, hairy, yellow or white, depending on subspecies. The floral tube is 2–6 mm (0.079–0.236 in) long, the sepals 1–3 mm (0.039–0.118 in) long and the stamens shorter than the sepals. Flowering mainly occurs from August to December. [2] [3] [4] [5]

Taxonomy

The species was first formally described in 1810 by Robert Brown in his Prodromus Florae Novae Hollandiae . [6] The specific epithet (flava) means "yellow". [7]

In 1847, Diederich Franz Leonhard von Schlechtendal described Pimelea dichotoma in the journal Linnaea, [8] but in 1983, Threlfall reduced it to Pimelea flava subsp. dichotoma in the journal Brunonia . That name, and that of the autonym are accepted by the Australian Plant Census:

Distribution and habitat

Diosma rice-flower (subsp. dichotoma) grows in sand or heavier soil, often in mallee shrubland and occurs from the Eyre Peninsula in South Australia to near West Wyalong in New South Wales and to the Grampians in Victoria. [10] Yellow rice-flower (subsp. flava) mainly grows in sandy soil and is found from the Yorke Peninsula in South Australia to East Gippsland in Victoria and from the south-east to the north of Tasmania. [15] [20]

Conservation status

Yellow rice-flower is listed as "rare" in Tasmania under the Tasmanian Government Threatened Species Protection Act 1995 . [20]

Related Research Articles

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

Pimelea linifolia, commonly known as slender rice flower is a common, variable shrub widespread throughout eastern Australia. It has narrow leaves arranged in opposite pairs, and usually white flowers arranged in heads of seven or more on the ends of the stems, with four lance-shaped bracts at the base of the inflorescence. The plant may be toxic to livestock.

<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 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 hewardiana</i> Species of plant

Pimelea hewardiana, commonly known as forked rice-flower, is a species of flowering plant in the family Thymelaeaceae and is endemic to south-eastern continental Australia. It is a shrub with narrowly elliptic leaves and head-like clusters of 7 to 34 unisexual yellow flowers.

<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 pauciflora</i> Species of shrub

Pimelea pauciflora, commonly known as poison rice-flower, is a species of shrub in the family Thymelaeaceae. It has small yellow-lime flowers and green, smooth fleshy leaves, and is endemic to Eastern Australia.

<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>Pimelea bracteata</i> Species of shrub

Pimelea bracteata, is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of New South Wales. It is a shrub with narrowly egg-shaped to elliptic leaves and pendulous, pale green heads of pale yellow flowers.

Pimelea brevifolia is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of Western Australia. It is an undershrub or shrub with erect, elliptic leaves, and heads of white flowers surrounded by four involucral bracts.

<i>Pimelea cracens</i> Species of flowering plant

Pimelea cracens is a species of flowering plant in the family Thymelaeaceae and is endemic to the southwest of Western Australia. It is an erect, spindly shrub with narrowly elliptic to egg-shaped leaves and creamy green to pale yellow flowers surrounded by 6 or 8 yellowish or pale green and reddish involucral bracts.

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

Pimelea phylicoides, commonly known as heath rice-flower, is a species of flowering plant in the family Thymelaeaceae and is endemic to southern continental Australia. It is an erect shrub with densely hairy young stems, narrowly egg-shaped to elliptic leaves, and heads of white flowers surrounded by 3 to 6 involucral bracts.

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

Pimelea simplex, commonly known as desert rice-flower, 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.

<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 flava". Australian Plant Census. Retrieved 26 November 2022.
  2. ↑ Rye, Barbara L. Busby, John R. (ed.). "Pimelea flava". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 26 November 2022.
  3. ↑ Entwisle, Timothy J. "Pimelea flava". Royal Botanic Gardens Victoria. Retrieved 26 November 2022.
  4. ↑ Harden, Gwen J. "Pimelea flava". Royal Botanic Garden Sydney. Retrieved 26 November 2022.
  5. ↑ "Pimelea flava". State Herbarium of South Australia. Retrieved 26 November 2022.
  6. ↑ "Pimelea flava". APNI. Retrieved 26 November 2022.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 200. ISBN   9780958034180.
  8. ↑ "Pimelea dichotoma". APNI. Retrieved 26 November 2022.
  9. ↑ "Pimelea flava subsp. dichotoma". Australian Plant Census. Retrieved 26 November 2022.
  10. 1 2 Rye, Barbara L. Busby, John R. (ed.). "Pimelea flava subsp. dichotoma". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 26 November 2022.
  11. ↑ Entwisle, Timothy J. "Pimelea flava subsp. dichotoma". Royal Botanic Gardens Victoria. Retrieved 26 November 2022.
  12. ↑ Harden, Gwen J. "Pimelea flava subsp. dichotoma". Royal Botanic Garden Sydney. Retrieved 26 November 2022.
  13. ↑ "Pimelea flava subsp. dichotoma". State Herbarium of South Australia. Retrieved 26 November 2022.
  14. ↑ "Pimelea flava subsp. flava". Australian Plant Census. Retrieved 26 November 2022.
  15. 1 2 Rye, Barbara L. Busby, John R. (ed.). "Pimelea flava subsp. flava". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 26 November 2022.
  16. ↑ Entwisle, Timothy J. "Pimelea flava subsp. flava". Royal Botanic Gardens Victoria. Retrieved 26 November 2022.
  17. ↑ "Pimelea flava subsp. flava". State Herbarium of South Australia. Retrieved 26 November 2022.
  18. ↑ Corrick, M.G. & Fuhrer, B.A. (2001). Wildflowers of Victoria and adjoining areas. Australia: Bloomings Books. ISBN   1876473142.
  19. ↑ "New South Wales Flora Online: Pimelea flava". Royal Botanic Gardens & Domain Trust, Sydney, Australia.
  20. 1 2 "Threatened Species Link - Pimelea flava subsp. flava". Tasmanian Government Department of Natural Resources and Environment. Retrieved 26 November 2022.
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