Synaphea macrophylla

Synaphea macrophylla
Conservation status
Priority One — Poorly Known Taxa (DEC)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Proteales
Family:	Proteaceae
Genus:	Synaphea
Species:	S. macrophylla
Binomial name
Synaphea macrophylla A.S.George [1]

Synaphea macrophylla is a species of flowering plant in the family Proteaceae and is endemic to a restricted area in south-west of Western Australia. It is a low-lying shrub covered with soft hairs, fan-shaped, more or less flat or concave, simple or lobed leaves, spikes of moderately crowded yellow flowers, and oval fruit.

Description

Synaphea macrophylla is a low-lying shrub covered with soft hairs and with stems up to 20 cm (7.9 in) long. Its leaves are fan-shaped, more or less flat or concave, simple or with two to five short lobes, 30–180 mm (1.2–7.1 in) long and 30–80 mm (1.2–3.1 in) wide, narrowed gradually to a petiole 60–170 mm (2.4–6.7 in) long. The flowers are borne in moderately crowded spikes up to 70–100 mm (2.8–3.9 in) long on a peduncle up to 300 mm (12 in) long and covered with soft hairs. There are blunt, hairy bracts 1.3–1.8 mm (0.051–0.071 in) long at the base of the peduncle. The perianth is moderately ascending to spreading with a wide opening, the upper tepal 5.5 mm (0.22 in) long and 2 mm (0.079 in) wide, the lower tepal 4 mm (0.16 in) long. The stigma is oblong with two lobes 0.7 mm (0.028 in) long, 1 mm (0.039 in) wide with a hairy ovary. Flowering occurs in October, and the fruit is oval, 5.5–6.0 mm (0.22–0.24 in) long and hairy. ^{[2] [3]}

Taxonomy

Synaphea macrophylla was first formally described in 1995 by Alex George in the Flora of Australia from specimens he collected near the Blackwood River on the Brockman Highway in 1993. ^{[2] [4]} The specific epithet (macrophylla) means 'long- or 'large-leaved'. ^[5]

Distribution and habitat

This species of Synaphea grows in gravelly loam between Augusta and Margaret River in the Jarrah Forest and Warren bioregions of south-western Western Australia. ^{[2] [3]}

Conservation status

Synaphea macrophylla is listed as is listed as "Priority One" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, ^[3] meaning that it is known from only one or a few locations which are potentially at risk. ^[6]

References

1. "Synaphea macrophylla". Australian Plant Census. Retrieved 3 December 2025.
2. George, Alex S. "Synaphea macrophylla". Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water: Canberra. Retrieved 3 December 2025.
3. "Synaphea macrophylla". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
4. "Synaphea macrophylla". Australian Plant Name Index. Retrieved 3 December 2025.
5. George, Alex S.; Sharr, Francis A. (2023). Western Australian Plant Names and Their Meanings - A Glossary (fifth ed.). Kardinya: Four Gables Press. p. 253. ISBN   9780645629538.
6. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 3 December 2025.