Hibbertia fractiflexa

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Hibbertia fractiflexa
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Dilleniales
Family: Dilleniaceae
Genus: Hibbertia
Species:
H. fractiflexa
Binomial name
Hibbertia fractiflexa

Hibbertia fractiflexa is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Territory. It is a small, multi-stemmed shrub with hairy foliage, elliptic leaves, and yellow flowers arranged in leaf axils with sixteen to twenty-two stamens arranged in groups around the two carpels.

Contents

Description

Hibbertia fractiflexa is a multi-stemmed shrublet that typically grows to a height of 80 cm (31 in) with long, wiry, scrambling shoots. The leaves are elliptic, 10–40 mm (0.39–1.57 in) long and 2–10 mm (0.079–0.394 in) wide on a petiole 0.3–2.0 mm (0.012–0.079 in) long. The flowers are arranged singly, in pairs or three in leaf axils on a thread-like peduncle 8.6–23.7 mm (0.34–0.93 in) long, with triangular bracts 0.8–1.6 mm (0.031–0.063 in) long. The five sepals are joined at the base, the two outer sepal lobes 2.5–3.5 mm (0.098–0.138 in) long 1.8–2.1 mm (0.071–0.083 in) wide, and the inner lobes narrower. The five petals are wedge-shaped, yellow, 4.7–9.3 mm (0.19–0.37 in) long and there are sixteen to twenty-two stamens arranged in groups around the two carpels, each carpel with two ovules. [2]

Taxonomy

Hibbertia fractiflexa was first formally described in 2010 by Hellmut R. Toelken in the Journal of the Adelaide Botanic Gardens from specimens collected by Glenn Mitchell Wightman and Clyde Robert Dunlop near Waterfall Creek in 1984. [2] [3] The specific epithet (fractiflexa) means "zigzag" referring to the shape of the long shoots. [2]

In the same journal, Toelken described four subspecies and the names are accepted by the Australian Plant Census:

Distribution and habitat

This hibbertia grows in the northern part of the Northern Territory. Subspecies brachyblastis usually grows in rocky places in woodland in Kakadu National Park, subsp. filicaulis among boulders in scrub, woodland and forest on the western escarpment of the Arnhem Land Plateau, subsp. fractiflexa on rocky slopes and sandstone outcrops in woodland on the lower slopes of the western escarpment of the Arnhem Land Plateau and subsp. serotina on steep, rocky slopes in woodland in Litchfield National Park. [2]

Conservation status

Subspecies brachyblastis and fractiflexa are classified as of "least concern" [8] [9] and subspecies filicaulis and serotina as "data deficient" under the Territory Parks and Wildlife Conservation Act 1976 . [10] [11]

See also

Related Research Articles

<i>Hibbertia cistiflora</i> Species of flowering plant

Hibbertia cistiflora is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern continental Australia. It is a small, erect to low-lying shrub with linear to lance-shaped leaves and yellow flowers usually with four or six stamens arranged in a single cluster.

<i>Hibbertia hermanniifolia</i> Species of flowering plant

Hibbertia hermanniifolia is a species of flowering plant in the family Dilleniaceae and is endemic to eastern Australia. It is an erect shrub with spatula-shaped to wedge-shaped leaves and yellow flowers arranged singly in leaf axils, with ten to fifteen stamens arranged around two hairy carpels.

Hibbertia alopecota is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Territory. It is a low shrub with elliptic to lance-shaped leaves and yellow flowers arranged singly in leaf axils, with sixteen to twenty-four stamens arranged in bundles around two carpels.

Hibbertia angulata is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area in the Northern Territory. It is an erect sub-shrub with sessile, linear leaves and yellow flowers arranged singly in leaf axils, with seventeen to nineteen stamens arranged in bundles around the three carpels.

Hibbertia argyrochiton is a species of flowering plant in the family Dilleniaceae and is endemic to northern parts of the Northern Territory. It is a shrub densely covered with scales and has elliptic to lance-shaped leaves, and yellow flowers usually arranged singly in leaf axils, with twenty to twenty-four stamens arranged in groups around the two carpels.

Hibbertia auriculiflora is a species of flowering plant in the family Dilleniaceae and is endemic to northern parts of the Northern Territory. It is usually a short-lived perennial shrublet covered with hairs and scales and has mostly oblong to linear leaves. The flowers are usually arranged singly or in groups of two or three in leaf axils, with twenty-five to thirty-two stamens arranged in groups around the two carpels.

Hibbertia cactifolia is a species of flowering plant in the family Dilleniaceae and is endemic to the Arnhem Land escarpment. It is a multi-stemmed shrublet with hairy foliage, oblong to elliptic leaves and yellow flowers arranged singly in leaf axils, with twenty-six to twenty-eight stamens arranged in groups around the two carpels.

Hibbertia caudice is a species of flowering plant in the family Dilleniaceae and is endemic to northern Australia. It is a shrub with wiry stems, hairy foliage, elliptic to lance-shaped leaves with the narrower end towards the base, and yellow flowers arranged in leaf axils, mostly with twenty-four to twenty-six stamens arranged in groups around the two carpels.

Hibbertia ciliolata is a species of flowering plant in the family Dilleniaceae and is endemic to the northern part of the Northern Territory. It is a shrub with a single stem, hairy foliage, linear to elliptic leaves, and yellow flowers arranged in leaf axils, mostly with eighteen to twenty-six stamens arranged in groups around the two carpels.

Hibbertia circularis is a species of flowering plant in the family Dilleniaceae and is endemic to the northern part of the Northern Territory. It is a perennial herb with prostrate, trailing branches, elliptic to more or less round leaves, and yellow flowers arranged in leaf axils, with thirty stamens arranged in groups around the two carpels.

Hibbertia echiifolia is a species of flowering plant in the family Dilleniaceae and is endemic to northern Australia. It is a variable shrub with elliptic to lance-shaped or oblong leaves and yellow flowers arranged singly in leaf axils, with twenty-nine to forty-five stamens arranged around the three carpels.

Hibbertia extrorsa is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted part of the Northern Territory. It is a small, spreading shrub with hairy foliage, linear to elliptic leaves, and yellow flowers arranged in leaf axils with about thirty stamens arranged in groups around the two carpels.

Hibbertia florida is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is a small shrub with oblong to lance-shaped leaves and yellow flowers arranged on the ends of branchlets, with twelve to twenty-eight stamens arranged around three carpels.

Hibbertia fruticosa is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is a woody shrub with linear to lance-shaped leaves and yellow flowers arranged singly on the ends of short side shoots, with eighteen to thirty-five stamens arranged around three carpels.

Hibbertia glebosa is a species of flowering plant in the family Dilleniaceae and is endemic to South Australia. It is a spreading to low-lying shrub with linear to lance-shaped leaves and yellow flowers arranged singly, with six or seven stamens in a cluster on one side of the two carpels.

<i>Hibbertia humifusa</i> Species of plant

Hibbertia humifusa is a species of flowering plant in the family Dilleniaceae and is endemic to central Victoria, Australia. It is a prostrate to low-lying shrub with linear to elliptic leaves, and bright yellow flowers with six to ten stamens arranged in a cluster on one side of the two carpels.

Hibbertia oblongata is a species of flowering plant in the family Dilleniaceae and is endemic to northern Australia. It is an erect to spreading shrub with scaly foliage, elliptic to oblong leaves, and yellow flowers usually arranged singly in leaf axils, with 16 to 36 stamens arranged in bundles around the two carpels.

Hibbertia persquamata is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Kimberley region of Western Australia. It is a spreading to prostrate shrub with flattened, scaly branches, narrow elliptic leaves and yellow flowers arranged singly in leaf axils with 20 to 26 stamens arranged around three scaly carpels.

<i>Hibbertia platyphylla</i> Species of plant

Hibbertia platyphylla is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern South Australia. It is a shrub with linear stem leaves and yellow flowers arranged singly in leaf axils with ten to fifteen stamens arranged on one side of two carpels.

<i>Hibbertia puberula</i> Species of plant

Hibbertia puberula is a species of flowering plant in the family Dilleniaceae and is endemic to New South Wales. It is a small shrub with softly-hairy foliage, narrow egg-shaped to almost linear leaves, and yellow flowers usually arranged singly short side shoots with ten to fourteen stamens on one side of two carpels.

References

  1. ↑ "Hibbertia fractiflexa". Australian Plant Census. Retrieved 12 June 2021.
  2. 1 2 3 4 5 6 7 8 Toelken, Hellmut R. (2010). "Notes on Hibbertia (Dilleniaceae) 5. H. melhanioides and H. tomentosa groups from tropical Australia" (PDF). Journal of the Adelaide Botanic Gardens. 23: 84–87. Retrieved 7 June 2021.
  3. ↑ "Hibbertia fractiflexa". APNI. Retrieved 12 June 2021.
  4. ↑ "Hibbertia fractiflexa subsp. brachyblastis". Australian Plant Census. Retrieved 12 June 2021.
  5. ↑ "Hibbertia fractiflexa subsp. filicaulis". Australian Plant Census. Retrieved 12 June 2021.
  6. ↑ "Hibbertia fractiflexa subsp. fractiflexa". Australian Plant Census. Retrieved 12 June 2021.
  7. ↑ "Hibbertia fractiflexa subsp. serotina". Australian Plant Census. Retrieved 12 June 2021.
  8. ↑ "Hibbertia fractiflexa subsp. brachyblastis". efloraNT. Retrieved 12 June 2021.
  9. ↑ "Hibbertia fractiflexa subsp. fractiflexa". efloraNT. Retrieved 12 June 2021.
  10. ↑ "Hibbertia fractiflexa subsp. filicaulis". efloraNT. Retrieved 12 June 2021.
  11. ↑ "Hibbertia fractiflexa subsp. serotina". efloraNT. Retrieved 12 June 2021.
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