Pimelea serpyllifolia

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Pimelea serpyllifolia
Pimelea serpyllifolia.jpg
At Point Lonsdale
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Thymelaeaceae
Genus: Pimelea
Species:
P. serpyllifolia
Binomial name
Pimelea serpyllifolia
Synonyms [1]
Habit in Cape Blanche Conservation Park Pimelea serpyllifolia subsp. serpyllifolia habit.jpg
Habit in Cape Blanche Conservation Park


Pimelea serpyllifolia, commonly known as thyme riceflower, [2] 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.

Contents

Description

Pimelea serpyllifolia is an erect shrub that typically grows to a height of 0.1–1.5 m (3.9 in – 4 ft 11.1 in), but is rarely stunted or prostrate in exposed positions. The leaves are borne in opposite pairs on glabrous stems and are crowded, narrowly elliptic to spatula-shaped, 4–12 mm (0.16–0.47 in) long and 2–4 mm (0.079–0.157 in) wide. The leaves are glabrous, and the same shade of green on both sides. The flowers are borne in compact heads of 4 to 12 yellow, yellowish-green or white flowers surrounded by 2 or 4 sessile, elliptic involucral bracts 2–6 mm (0.079–0.236 in) long and 1–4 mm (0.039–0.157 in) wide, female and male flowers borne on separate plants. The floral tube of female plants is 1.5–2.5 mm (0.059–0.098 in) long, the sepals 0.8–1 mm (0.031–0.039 in) long, and of male plants 1.8–2.5 mm (0.071–0.098 in) and 1.0–1.7 mm (0.039–0.067 in) long respectively. [2] [3] [4] [5]

Taxonomy

Pimelea serpyllifolia was first formally described in 1810 by Robert Brown in his Prodromus Florae Novae Hollandiae et Insulae Van Diemen . [6] [7] The specific epithet, serpyllifolia means "wild thyme-leaved". [8]

In 1988, Barbara Lynette Rye named two subspecies of P. serpyllifolia in the journal Nuytsia , and the names are accepted by the Australian Plant Census :

Distribution and habitat

Subspecies serpyllifolia grows in shrubland and woodland mostly in near-coastal areas of Victoria and South Australia, but also in the far north-west of Victoria. There are also small populations near Euston in far south-western New South Wales, near Eucla in Western Australia, and in a few places in north-eastern Tasmania and on Bass Strait Islands. [2] [11] [14] [15] Subspecies occidentalis grows in near-coastal areas between Israelite Bay and Twilight Cove in southern Western Australia. [13] [16]

Conservation status

Pimelea serpyllifolia subsp. serpyllifolia is listed as "endangered" in New South Wales under the New South Wales Government Biodiversity Conservation Act 2016 . [14]

Related Research Articles

<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 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 calcicola</i> Species of shrub

Pimelea calcicola is a species of flowering plant in the family Thymelaeaceae and is endemic to part of the west coast of Western Australia. It is an erect to spreading shrub with elliptic leaves arranged in opposite pairs, and head-like racemes of pale to deep pink, tube-shaped flowers surrounded by 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 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 rosea</i> Species of shrub

Pimelea rosea, commonly known as rose banjine, is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of Western Australia. It is an erect shrub with narrowly elliptic leaves, and clusters of pale pink to reddish-purple flowers surrounded by 4 egg-shaped involucral bracts.

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

Pimelea imbricata is a species of flowering plant in the family Thymelaeaceae and is native to the southwest of Western Australia and south-eastern South Australia. It is a shrub with narrowly elliptic leaves and erect, compact clusters of white or pink flowers surrounded by 10 to 22 green or red to purple involucral bracts.

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 brevistyla</i> Species of shrub

Pimelea brevistyla is a species of flowering plant in the family Thymelaeaceae and is endemic to the south-west of Western Australia. It is a shrub with narrowly egg-shaped leaves arranged in opposite pairs, and head-like racemes of white, tube-shaped flowers surrounded by yellowish 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.

Pimelea erecta is a species of flowering plant in the family Thymelaeaceae and is endemic to the southwest of Western Australia. It is an erect, often spreading shrub with elliptic to egg-shaped leaves arranged in opposite pairs, and clusters of erect, white or pale pink flowers.

Pimelea forrestiana is a species of flowering plant in the family Thymelaeaceae and is endemic to Western Australia. It is a shrub with linear to narrowly elliptic leaves arranged in opposite pairs, and head-like clusters of yellow, tube-shaped flowers.

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

Pimelea lehmanniana is a species of flowering plant in the family Thymelaeaceae and is endemic to the southwest of Western Australia. It is a shrub with narrowly egg-shaped leaves and clusters of white to pale yellow flowers surrounded by 4 or 6, pale yellowish-green involucral bracts.

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

Pimelea leucantha is a species of flowering plant in the family Thymelaeaceae and is endemic to near-coastal areas in the west of Western Australia. It is a shrub with linear to narrowly egg-shaped or narrowly elliptic leaves and clusters of white to pale yellow flowers surrounded by 4 or 6 egg-shaped involucral bracts.

Pimelea neokyrea is a species of flowering plant in the family Thymelaeaceae and is endemic to the southwest of Western Australia. It is a low, spreading shrub with narrowly egg-shaped to narrowly ellipic leaves and erect clusters of white or pale yellow flowers surrounded by egg-shaped involucral bracts. It was previously included in Pimelea avonensis.

Pimelea pendens 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 egg-shaped to narrowly elliptic leaves and compact, pendulous clusters of pale green flowers surrounded by 2 to 4 pairs of green or yellowish-green 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.

Pimelea subvillifera is a species of flowering plant in the family Thymelaeaceae and is native to the south-west of Western Australia and to South Australia. It is usually an erect shrub and has elliptic leaves and heads of white flowers surrounded by 8 to 18 narrowly egg-shaped involucral bracts.

References

  1. 1 2 "Pimelea serpyllifolia". Australian Plant Census. Retrieved 30 March 2023.
  2. 1 2 3 Harden, Gwen. "Pimelea serpyllifolia". Royal Botanic Garden Sydney. Retrieved 30 March 2023.
  3. ↑ Rye, Barbara L. "Pimelea serpyllifolia". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 30 March 2023.
  4. ↑ "Pimelea serpyllifolia". State Herbarium of South Australia. Retrieved 30 March 2023.
  5. 1 2 Entwisle, Timothy J. "Pimelea serpyllifolia subsp. serpyllifolia". Royal Botanic Gardens Victoria. Retrieved 30 March 2023.
  6. ↑ "Pimelea serpyllifolia". APNI. Retrieved 29 March 2023.
  7. ↑ Brown, R. (1810). Prodromus florae Novae Hollandiae et insulae Van-Diemen, exhibens characteres plantarum quas annis 1802-1805. p. 360.
  8. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 306. ISBN   9780958034180.
  9. ↑ "Pimelea serpyllifolia subsp. occidentalis". Australian Plant Census. Retrieved 30 March 2023.
  10. 1 2 Rye, Barbara L. (1988). "A revision of Western Australian Thymelaeaceae". Nuytsia. 6 (2): 152–154. Retrieved 30 March 2023.
  11. 1 2 Rye, Barbara L. "Pimelea serpyllifolia subsp. occidentalis". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 30 March 2023.
  12. ↑ "Pimelea serpyllifolia subsp. serpyllifolia". Australian Plant Census. Retrieved 30 March 2023.
  13. 1 2 Rye, Barbara L. "Pimelea serpyllifolia subsp. serpyllifolia". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 30 March 2023.
  14. 1 2 "Thyme Rice-Flower - profile". New South Wales Government Office of Environment and Heritage. Retrieved 30 March 2023.
  15. ↑ "Pimelea serpyllifolia subsp. serpyllifolia". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  16. ↑ "Pimelea serpyllifolia subsp. occidentalis". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
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