Grevillea vestita is a species of flowering shrub in the family Proteaceae, endemic to the south‑western region of Western Australia. It was first formally described by botanist Carl Meissner in 1856.
Taxonomy
- Kingdom: Plantae
- Clade: Angiosperms
- Clade: Eudicots
- Order: Proteales
- Family: Proteaceae
- Genus: Grevillea
- Species: G. vestita
- Authority: Meisn.
Two subspecies are recognised in some taxonomic treatments: G. vestita subsp. vestita and G. vestita subsp. isopogoides (the latter differing in leaf morphology). The acceptance of these subspecies varies among authorities.
Description
Grevillea vestita is an erect to spreading shrub typically reaching 0.3–1.5 m in height. The plant is characterised by:
- Leaves: Narrowly elliptic to linear, often divided into 2–3 leaflets or lobes. The leaf surfaces are densely covered with fine, silky hairs, giving a soft texture and a pale green to grey‑green appearance.
- Inflorescence: Terminal clusters (racemes) of flowers that are usually pink to reddish‑orange, sometimes pale yellow. The perianth is silky‑hirsute, and the pistil is long, typical of many Grevillea species.
- Fruit: A thin-walled follicle containing one or two seeds, which are released when mature.
Flowering mainly occurs from late winter to early summer (June–December), though it can be sporadic depending on local climate conditions.
Distribution and Habitat
Grevillea vestita is confined to the south‑western coastal and inland regions of Western Australia, occurring primarily in the Geraldton Sandplains, Swan Coastal Plain, and the Jarrah Forest biogeographic regions. It grows in:
- Sandy or gravelly soils over laterite or limestone.
- Heathland, open shrubland, and low‑woodland communities, often co‑occurring with other Proteaceae such as Banksia and Hakea species.
Its distribution is patchy, with populations often found on dunes, sandplains, and poorly drained sites.
Ecology
- Pollination: Flowers are ornithophilous; native honeyeaters (e.g., Meliphagidae) are the principal pollinators, attracted by the nectar and colour of the blooms.
- Fire response: Like many Western Australian Proteaceae, G. vestita possesses a lignotuber or a seed bank adapted to regenerate after fire. Post‑fire recruitment is primarily from seed germination stimulated by heat and smoke.
- Soil preference: The species shows tolerance for low‑nutrient, acidic soils, and it is often associated with mycorrhizal fungi that aid nutrient acquisition.
Conservation Status
The Western Australian Government Department of Biodiversity, Conservation and Attractions lists Grevillea vestita as “Not Threatened”. Its populations are stable, although localized threats such as habitat loss due to land clearing, mining activities, and inappropriate fire regimes may affect specific subpopulations.
Horticultural Use
Grevillea vestita is occasionally cultivated in native plant gardens and for ornamental purposes due to its attractive foliage and colourful inflorescences. It prefers well‑draining soils, full sun to part shade, and is tolerant of drought once established. Propagation is generally achieved by seed; cuttings are possible but may be more challenging.
References
- Meissner, C. (1856). Grevillea vestida. Journal of the Proceedings of the Linnean Society.
- Australian Plant Census (APC). Grevillea vestita. Accessed 2024.
- Department of Biodiversity, Conservation and Attractions, Western Australia. “FloraBase – Grevillea vestita”.
- McGillivray, D. J., & Makinson, R. O. (1995). Grevillea (Proteaceae): A taxonomic revision. Australian Systematic Botany.
Note: All information presented reflects currently available scientific literature and taxonomic databases up to the date of this entry.