Pimelea sessilis

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

Pimelea sessilis is a species of flowering plant in the family Thymelaeaceae and is endemic to the west of Western Australia. It is an erect shrub with sessile, elliptic leaves, and heads of white or cream coloured flowers surrounded by 4 broadly elliptic involucral bracts.

Contents

Description

Pimelea sessilis is an erect shrub that typically grows to a height of 15–40 cm (5.9–15.7 in) with dense tufts of hair in its leaf axils. The leaves are sessile to almost stem-clasping, narrowly elliptic to almost round, 6–15 mm (0.24–0.59 in) long and 6–9 mm (0.24–0.35 in) wide. The flowers are arranged in heads on a peduncle 5–25 mm (0.20–0.98 in) long, surrounded by 4 broadly elliptic to almost round involucral bracts 7–15 mm (0.28–0.59 in) long and 6–14 mm (0.24–0.55 in) wide, each flower on a pedicel 1.5–2.0 mm (0.059–0.079 in) long. The flower tube is 8–11 mm (0.31–0.43 in) long, the sepals 3–5 mm (0.12–0.20 in) long, and the stamens are longer than the sepals. Flowering occurs from August to October. [2] [3] [4] [5]

Taxonomy

Pimelea sessilis was first formally described in 1988 by Barbara Lynette Rye in the journal Nuytsia from specimens collected near Kalbarri in 1985. [5] [6] The specific epithet (sessilis) means "sessile". [7]

Distribution and habitat

Pimelea sessilis grows in shrubland between Tamala Station and Yandanooka in the Avon Wheatbelt, Carnarvon, Geraldton Sandplains and Yalgoo bioregions of Western Australia. [2] [4] [5]

Conservation status

Pimelea sessilis is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions. [2]

Related Research Articles

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

Pimelea physodes, commonly known as Qualup bell, is a species of shrub that is endemic to Western Australia. It has egg-shaped to narrow elliptical leaves and distinctive bell-like inflorescences with tiny greenish flowers surrounded by long elliptical bracts. The inflorescence resembles those of some of the only distantly-related darwinia "bells" and the bracts are a combination of red, purple, green and cream-coloured.

<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 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 hispida</i> Species of shrub

Pimelea hispida, commonly known as bristly pimelea, is a species of flowering plant in the family Thymelaeaceae and is endemic to the southwest of Western Australia. It is an erect shrub with elliptic leaves and erect clusters of pink flowers surrounded by 4 green involucral bracts.

<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 longiflora</i> Species of shrub

Pimelea longiflora 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 linear to narrowly elliptic leaves and erect clusters of white to cream-coloured flowers, surrounded by 4 to 6 green, egg-shaped involucral bracts.

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

Pimelea avonensis 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 or elliptic leaves and clusters of white, tube-shaped 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 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.

Pimelea drummondii is a species of flowering plant in the family Thymelaeaceae and is endemic to near-coastal areas of southern Western Australia. It is an erect, slender shrub with narrowly elliptic or elliptic leaves arranged in opposite pairs, and white or cream-coloured flowers surrounded by 3 or 4 pairs of pale green to yellowish 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.

Pimelea graniticola is a species of flowering plant in the family Thymelaeaceae and is endemic to the southwest of Western Australia. It is a shrub with linear leaves and large clusters of erect, cream-coloured or white flowers surrounded by about 40 green involucral bracts.

Pimelea halophila is a species of flowering plant in the family Thymelaeaceae and is endemic to the southwest of Western Australia. It is an undershrub with elliptic leaves and compact clusters of 4 to 20 cream-coloured or white flowers surrounded by 3 or 4 green involucral bracts, and grows on islands in salt lakes.

Pimelea lanata 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 elliptic leaves and erect clusters of white to deep pink flowers surrounded by 4, mostly 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 pelinos is a species of flowering plant in the family Thymelaeaceae and is endemic to a small area in the southwest of Western Australia. It is an erect, straggling shrub with narrowly egg-shaped leaves, the narrower end towards the base, and erect clusters of cream-coloured, unisexual flowers surrounded by 2 or 4 egg-shaped, leaf-like involucral bracts.

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 rara</i> Species of flowering plant

Pimelea rara, commonly known as summertime pimelea, is a species of flowering plant in the family Thymelaeaceae and is endemic to the southwest of Western Australia. It is a shrub with elliptic or egg-shaped leaves, the narrower end towards the base, and heads of white flowers surrounded by 4 broadly egg-shaped involucral bracts.

References

  1. ↑ "Pimelea sessilis". Australian Plant Census. Retrieved 2 April 2023.
  2. 1 2 3 "Pimelea sessilis". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  3. ↑ Rye, Barbara L. "Pimelea sessilis". Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 2 April 2023.
  4. 1 2 Rye, Barbara L. (1988). "A revision of Western Australian Thymelaeaceae". Nuytsia. 6 (2): 232–234. Retrieved 2 April 2023.
  5. 1 2 3 Rye, Barbara L. (1999). "An updated revision of Pimelea sect. Heterolaena (Thymelaeaceae), including two new taxa". Nuytsia. 13 (1): 188–189. Retrieved 2 April 2023.
  6. ↑ "Pimelea sessilis". APNI. Retrieved 2 April 2023.
  7. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 306. ISBN   9780958034180.
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