Definition
Grevillea parvula is a species of flowering plant in the family Proteaceae, endemic to the south‑west region of Western Australia. It is recognized as a distinct taxon within the genus Grevillea, which comprises a diverse group of shrubs and small trees native to Australia and surrounding areas.
Overview
- Taxonomy – Kingdom Plantae; clade Angiosperms; clade Eudicots; order Proteales; family Proteaceae; genus Grevillea; species G. parvula.
- Distribution – The species occurs naturally in the Wheatbelt and Geraldton Sandplains bioregions of Western Australia, typically on sandy or lateritic soils.
- Habitat – It is found in low‑lying heathland, shrubland, and open woodland communities, often associated with other Proteaceae such as Banksia spp. and Hakea spp.
- Conservation status – According to the Department of Biodiversity, Conservation and Attractions (Western Australia), G. parvula is currently listed as “Not Threatened,” reflecting a stable population within its known range.
Etymology / Origin
The specific epithet parvula derives from the Latin diminutive parvulus, meaning “very small” or “little.” This nomenclature likely references the plant’s modest stature or the size of its leaves and flowers relative to other Grevillea species.
Characteristics
- Growth form – An erect to spreading shrub, generally attaining heights of 0.3–1.2 m.
- Leaves – Narrow, linear to narrowly elliptic leaves, typically 5–15 mm long and 0.5–1.5 mm wide, with margins that may be entire or finely toothed. The surface is generally glabrous or sparsely hairy.
- Inflorescence – Flowers are arranged in terminal or axillary racemes or clusters, usually comprising 5–20 individual blossoms.
- Flowers – The perianth is predominantly pink to red, sometimes displaying a subtle orange hue; the style is prominently exserted and may exhibit a contrasting colour (often bright pink). Flowering mainly occurs from late winter through spring (July–October).
- Fruit – Following pollination, the plant produces a woody, follicular fruit that dries and splits open to release winged seeds adapted for wind dispersal.
- Ecology – Like many Grevillea species, G. parvula is bird‑pollinated, with nectar‑feeding honeyeaters acting as primary pollinators. The plant also exhibits fire‑adapted traits, possessing a lignotuber that enables resprouting after fire events.
Related Topics
- Genus Grevillea – A large genus of about 360 species, notable for their diverse foliage and striking inflorescences.
- Family Proteaceae – A prominent Southern Hemisphere plant family that includes genera such as Banksia, Hakea, and Protea.
- South‑west Australian Floristic Region – A biodiversity hotspot recognised for its high endemism, especially among Proteaceae.
- Fire ecology in Australian shrublands – The role of fire in shaping the life cycles and regeneration strategies of species like Grevillea parvula.
All information presented is based on recognized botanical sources and regional flora surveys; where specific details are limited, the statements reflect the most reliable available data.