Boronia grimshawii

Boronia grimshawii is a plant in the citrus family Rutaceae and is endemic to mountain ranges in central Queensland, Australia. It is an erect shrub with many branches, simple leaves with a densely hairy, pale underside, and pink, four-petalled flowers.

Boronia grimshawii
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Boronia
Species:
B. grimshawii
Binomial name
Boronia grimshawii
Duretto[1]

Description

Boronia grimshawii is an erect, many-branched shrub which grows to a height of about 1.5 m (5 ft) with its young branches densely covered with white, star-shaped hairs. The leaves are elliptic to lance-shaped, 10–26 mm (0.4–1 in) long and 4–10 mm (0.2–0.4 in) wide with a petiole 1–2 mm (0.04–0.08 in) long. The lower surface of the leaf is a slightly paler colour than the upper surface. Up to three pink to white flowers are arranged on a stalk 0.5–2 mm (0.020–0.079 in) long. The four sepals are egg-shaped to triangular, densely hairy, 2–2.5 mm (0.079–0.098 in) long and 1–2 mm (0.039–0.079 in) wide. The four petals are 6–10 mm (0.24–0.39 in) long, 4–6 mm (0.16–0.24 in) wide but enlarge slightly as the fruit develops. The eight stamens alternate in length with those opposite the petals shorter than those near a sepal. Flowering occurs from June to October and the fruit are about 5 mm (0.20 in) long and 2.5 mm (0.098 in) wide.[2][3]

Taxonomy and naming

Boronia grimshawii was first formally described in 2003 by Marco F. Duretto and the description was published in the journal Muelleria from a specimen collected near the property "Bronte Station".[4] The specific epithet (grimshawii) honours the Australian botanist Paul Grimshaw.[2]

Distribution and habitat

This boronia grows in woodland but is only known from a single population on an eroded hillside on private property near Gayndah in south-east Queensland.[2]

Conservation

Boronia grimshawii is classed as "vulnerable" under the Queensland Government Nature Conservation Act 1992.[3]

gollark: Well that's arbitrary ™.
gollark: Technically tonne is metric and ton isn't, IIRC.
gollark: It should support SI prefixes on absolutely everything.
gollark: 1056 kilotons
gollark: 100 exaergs

References
  1. "Boronia grimshawii". Australian Plant Census. Retrieved 16 March 2020.
  2. Duretto, Marco F. (2003). "Notes on Boronia (Rutaceae) in eastern and northern Australia" (PDF). Muelleria. 17: 116–120. Retrieved 4 February 2019.
  3. "Boronia grimshawii". The State of Queensland Department of Environment and Science. Retrieved 4 February 2019.
  4. "Boronia grimshawii". APNI. Retrieved 4 February 2019.
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