Hibbertia malacophylla

Hibbertia malacophylla
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Dilleniales
Family:	Dilleniaceae
Genus:	Hibbertia
Species:	H. malacophylla
Binomial name
	Hibbertia malacophylla; Toelken

Last updated December 30, 2023

Hibbertia malacophylla is a species of flowering plant in the family Dilleniaceae and is endemic to Queensland. It is a spreading shrub with densely hairy foliage, elliptic leaves, and single yellow flowers arranged in leaf axils with 50 to 55 stamens arranged around the two carpels.

Description

Hibbertia malacophylla is a densely hairy shrub with spreading branches and that typically grows up to 0.8 m (2 ft 7 in) high and 1.5 m (4 ft 11 in) wide. The leaves are elliptic to lance-shaped with the narrower end towards the base, 20–35 mm (0.79–1.38 in) long and 8–15 mm (0.31–0.59 in) wide on a petiole 1.5–3.0 mm (0.059–0.118 in) long. The flowers are arranged singly in leaf axils on a stiff peduncle 5.8–14.2 mm (0.23–0.56 in) long, with linear to lance-shaped bracts 3.2–5.6 mm (0.13–0.22 in) long. The five sepals are joined at the base, the three outer sepal lobes 8.2–8.9 mm (0.32–0.35 in) long and the inner lobes 7.3–8.4 mm (0.29–0.33 in) long. The five petals are broadly egg-shaped with the narrower end towards the base, yellow, 6.4–10.1 mm (0.25–0.40 in) long and there are 50 to 55 stamens and up to twelve staminodes arranged around the two carpels, each carpel with three or four ovules. Flowering occurs from February to August.^[2]

Taxonomy

Hibbertia malacophylla was first formally described in 2010 by Hellmut R. Toelken in the Journal of the Adelaide Botanic Gardens from specimens collected near Port Curtis in 1977.^[2]^[3] The specific epithet (malacophylla) means "soft-leaved", referring to densely silky-hairy leaves.^[2]

Distribution and habitat

This hibbertia grows on granite outcrops in forest on the Many Peaks Range near Gladstone.^[2]

Conservation status

Hibbertia malacophylla is classified as "least concern" under the Queensland Government Nature Conservation Act 1992 .^[4]

Related Research Articles

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Hibbertia araneolifera is a species of flowering plant in the family Dilleniaceae and is endemic to Queensland. It is a small shrub with wiry branches, narrow elliptic to lance-shaped leaves and yellow flowers arranged singly in leaf axils, with forty to forty-four stamens arranged 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.

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Hibbertia brennanii is a species of flowering plant in the family Dilleniaceae and is endemic to the Arnhem Land escarpment. It is a low, spreading sub-shrub with hairy foliage, elliptic to lance-shaped leaves and pale yellow flowers arranged singly in leaf axils, with ten to twelve stamens arranged in groups around the two carpels.

Hibbertia brevipedunculata is a species of flowering plant in the family Dilleniaceae and is endemic to northern Australia. It is a sub-shrub with hairy foliage, linear to lance-shaped leaves with the narrow end towards the base, and yellow flowers arranged singly on the ends of branches or short side shoots, with thirty to forty-four stamens arranged in bundles 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 cistifolia is a species of flowering plant in the family Dilleniaceae and is endemic to northern Australia. It is a prostrate to low-lying sub-shrub with trailing, wiry stems, hairy foliage, oblong to elliptic leaves and yellow flowers arranged in leaf axils, with forty to fifty-eight stamens arranged around the two carpels.

Hibbertia crinita is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern continental Australia. It is a spreading to low-lying shrub with hairy foliage, linear to lance-shaped or elliptic leaves and yellow flowers with ten to fifteen stamens arranged on one side of two 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 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.

Hibbertia guttata is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Territory. It is a straggly shrub with moderately to densely hairy foliage, linear to elliptic leaves, and yellow flowers arranged in leaf axils with 28 to 36 stamens arranged in groups around the three carpels.

Hibbertia malleolacea is a species of flowering plant in the family Dilleniaceae and is endemic to the northern parts of the Northern Territory. It is a straggly shrub with hairy foliage, elliptic leaves, and yellow flowers arranged in leaf axils with 28 to 32 stamens arranged in bundles around three carpels.

Hibbertia mollis is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted part of Western Australia. It is a shrub with hairy, ridged branches, narrow elliptic-oblong leaves, and yellow flowers arranged singly in leaf axils with about twenty-four stamens arranged in bundles around two densely scaly carpels.

Hibbertia nemorosa is a species of flowering plant in the family Dilleniaceae and is endemic to north Queensland. It is a shrub with ridged branches, oblong leaves and yellow flowers arranged singly or in pairs in leaf axils with 40 to 48 stamens and up to eight staminodes arranged around two or three carpels.

Hibbertia pancerea is a species of flowering plant in the family Dilleniaceae and is endemic to Kakadu National Park. It is a spreading shrub foliage densely covered with shield-like scales, that has elliptic leaves and yellow flowers arranged singly in leaf axils with 26 to 30 stamens arranged in bundles around two carpels.

Hibbertia patens is a species of flowering plant in the family Dilleniaceae and is endemic to south-eastern Queensland. It is a much-branched shrub with hairy foliage, linear to oblong leaves and yellow flowers arranged singly in leaf axils with 12 to 26 stamens arranged around two carpels.

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.

Hibbertia rufociliata is a species of flowering plant in the family Dilleniaceae and is endemic to a restricted area of north Queensland. It is a shrub with hairy foliage, elliptic to lance-shaped leaves with the narrower end towards the base, and yellow flowers usually arranged singly in leaf axils with 36 to 44 stamens arranged in bundles around two densely scaly carpels.

References

↑ "Hibbertia malacophylla". Australian Plant Census. Retrieved 13 July 2021.
1 2 3 4 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: 30–31. Retrieved 13 July 2021.
↑ "Hibbertia malacophylla". APNI. Retrieved 13 July 2021.
↑ "Species profile—Hibbertia malacophylla". Queensland Government Department of Environment and Science. Retrieved 13 July 2021.

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[APC-1] "Hibbertia malacophylla". Australian Plant Census. Retrieved 13 July 2021.

[JABG-2] 1 2 3 4 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: 30–31. Retrieved 13 July 2021.

[APNI-3] "Hibbertia malacophylla". APNI. Retrieved 13 July 2021.

[DES-4] "Species profile—Hibbertia malacophylla". Queensland Government Department of Environment and Science. Retrieved 13 July 2021.

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