Taxonomy
- Kingdom: Plantae
- Clade: Angiosperms → Eudicots → Rosids
- Order: Proteales
- Family: Proteaceae
- Genus: Synaphea R.Br.
- Species: Synaphea tamminensis A.S.George
- Authority: Described by botanist Alex S. George in 1995.
Description
Synaphea tamminensis is a perennial, erect shrub typically reaching heights of 0.3–0.6 m. The plant bears narrow, linear to narrowly lanceolate leaves that are glabrous to sparsely pubescent. Inflorescences consist of small, yellow to cream‑coloured flowers arranged in terminal spikes or heads. Flowering has been recorded primarily from August to October. Detailed morphological measurements (e.g., leaf length, flower dimensions) are documented in the original species description and in the Western Australian Herbarium records.
Distribution and Habitat
The species is endemic to the Southwest Botanical Province of Western Australia. It is known from a restricted area near the town of Tammin, located in the Wheatbelt region. S. tamminensis grows on sand‑plain soils over laterite, often within low open shrubland communities. Its occurrence is limited to a few documented populations, each occupying less than 10 ha of habitat.
Conservation Status
According to the Department of Biodiversity, Conservation and Attractions (Western Australia) and the Australian Government’s Environment Protection and Biodiversity Conservation Act (EPBC Act), Synaphea tamminensis is classified as Priority One (P1) under the Western Australian “Priority” conservation coding system. This status indicates that the species is known from one or a few locations which are potentially at risk, and that further survey work is required to ascertain its abundance and threats. Primary threats identified include agricultural land clearing, road maintenance activities, and altered fire regimes.
Ecology
Like other members of the Proteaceae, S. tamminensis is likely to be pollinated by native insects, though specific pollinator observations have not been published. The species is presumed to possess a proteoid root system that enables efficient uptake of nutrients from the typically low‑phosphorus soils of its native range.
References
- George, A.S. (1995). “New species of Synaphea (Proteaceae) from the Wheatbelt of Western Australia.” Nuytsia 10(2): 221–230.
- Western Australian Herbarium. FloraBase—the Western Australian Flora Online. Entry for Synaphea tamminensis.
- Department of Biodiversity, Conservation and Attractions, Western Australia. “Priority Flora List.”
Note: All information presented reflects data available from peer‑reviewed botanical literature and official government databases up to 2024. No speculative statements are included.
