Acacia guinetii
| Guinet's wattle | |
|---|---|
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| In the Australian National Botanic Gardens | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Caesalpinioideae |
| Clade: | Mimosoid clade |
| Genus: | Acacia |
| Species: | A. guinetii
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| Binomial name | |
| Acacia guinetii | |
| |
| Occurrence data from AVH | |
| Synonyms[1] | |
Acacia guinetii, commonly known as Guinet's wattle,[2] is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a spreading or spindly shrub with hairy branchlets, bipinnate leaves, spherical heads of golden yellow flowers and narrowly oblong pods.
Description
Acacia guinetii is a spreading shrub that typically grows to a height of 0.3–1 m (1 ft 0 in – 3 ft 3 in) or a spindly shrub to about 2 m (6 ft 7 in) and has hairy branchlets that commonly arch downwards. It has a single pair of pinnae 4–10 mm (0.16–0.39 in) long on a petiole 1.0–1.5 mm (0.039–0.059 in) long. Each pinna usually has three or four pairs of pinnules 4–7 mm (0.16–0.28 in) long, 1–2 mm (0.039–0.079 in) wide and green with the edges turned down or rolled under. There is a sessile gland on the petiole at the base of the pinnae and sometimes at the base of the lowermost pair of pinnules. The flowers are borne in one or two spherical heads in leaf axils on a peduncle 10–25 mm (0.39–0.98 in) long and usually much longer then the leaves. Each head has 50 to 75 densely arranged golden yellow flowers. Flowering occurs from June to September and the pods are 20–40 mm (0.79–1.57 in) long and 3–4 mm (0.12–0.16 in) wide with oblong seeds 2.5–3.0 mm (0.098–0.118 in) long.[2][3][4][5]
This species belongs to the Acacia pulchella group of wattles and resembles Acacia lasiocarpa.[4]
Taxonomy
Acacia guinetii was first formally described in 1979 by the botanist Bruce Maslin in the journal Nuytsia from specimens collected by Alison Ashby in the Moresby Range in 1972.[3][6] The specific epithet (guinetii) honours Philippe Guinet for his many contributions to the study of Acacia pollen.[3]
Distribution and habitat
Guinet's wattle grows on lateritic hills in heath between Geraldton and Northamton in the Geraldton Sandplains bioregion of southwestern Western Australia.[2]
Conservation status
Acacia guinetii is listed as "Priority Four" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[5] meaning that is rare or near threatened.[7]
See also
References
- ^ a b "Acacia guinetii". Australian Plant Census. Retrieved 15 February 2026.
- ^ a b c Maslin, Bruce R. "Acacia guinetii". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 15 February 2026.
- ^ a b c Maslin, Bruce R. (1979). "Studies in the genus Acacia (Mimosaceae) - 9 Additional notes on the Series Pulchellae Benth". Nuytsia. 2 (6): 361–362. Retrieved 15 February 2026.
- ^ a b "Acacia guinetii". Australian Biological Resources Study. Retrieved 15 February 2026.
- ^ a b "Acacia guinetii". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ "Acacia guinetii". Australian Plant Name Index. Retrieved 15 February 2026.
- ^ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 15 February 2026.