| Spyridium riparium | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rhamnaceae |
| Genus: | Spyridium |
| Species: | S. riparium |
| Binomial name | |
| Spyridium riparium | |
Spyridium riparium is a species of flowering plant in the family Rhamnaceae and is endemic to the south of Western Australia. It is an erect shrub, usually with narrowly egg-shaped leaves, and clusters of densely hairy, white or cream-coloured flowers.
Spyridium riparium is an erect shrub that typically grows to a height of 0.8–1.5 m (2 ft 7 in – 4 ft 11 in), its young stems densely covered with star-shaped and simple hairs. Its leaves are usually narrowly egg-shaped, 8–17 mm (0.31–0.67 in) long and 1.5–3.5 mm (0.059–0.138 in) wide on a petiole 1.5–2.0 mm (0.059–0.079 in) long. The edges of the leaves are rolled under, the upper surface is more or less glabrous and the lower surface white to pale green and densely hairy. The flowers are white or cream-coloured, and borne on the ends of branches in dense clusters 10–18 mm (0.39–0.71 in) wide, and in smaller groups in leaf axils. The floral tube is about 1.2 mm (0.047 in) long, the sepals about 1.2 mm (0.047 in) long, and both are densely covered with minute, star-shaped hairs. Flowering occurs from July to October. [2] [3]
Spyridium riparium was first formally described in 1995 by Barbara Lynette Rye in the journal Nuytsia from specimens collected by Belinda Hammersley, near the Mitchell River in 1993. [2] [4] The specific epithet (riparium) means "inhabiting river banks". [5]
This spyridium grows along river banks and near streams in sandy or gravelly soils between the Mitchell and Kent Rivers in the Esperance Plains, Jarrah Forest and Warren bioregions of southern Western Australia. [2] [3] [6]
Spyridium riparium is listed as "Priority Two" by the Western Australian Government Department of Biodiversity, Conservation and Attractions, [3] meaning that it is poorly known and from only one or a few locations. [7]
Spyridium globulosum, commonly known as basket bush, is a species of flowering plant in the family Rhamnaceae and is endemic to coastal areas in the south-west of Western Australia. It is a shrub with relatively large leaves and heads of flowers covered with whitish hairs.
Spyridium glaucum is a species of flowering plant in the family Rhamnaceae and is endemic to a restricted area of south-western Western Australia. It is an erect or spreading shrub with egg-shaped leaves, and clusters of 3 to 6 rusty-hairy flowers.
Spyridium minutum is a species of flowering plant in the family Rhamnaceae and is endemic to the south of Western Australia. It is an erect or spreading shrub with broadly egg-shaped or heart-shaped leaves, and groups of two or three hairy, white flowers.
Spyridium montanum is a species of flowering plant in the family Rhamnaceae and is endemic to the Stirling Range in the south of Western Australia. It is an erect shrub with elliptic or egg-shaped leaves, and groups of up to ten densely hairy, white or cream-coloured flowers.
Spyridium mucronatum is a species of flowering plant in the family Rhamnaceae and is endemic to the south of Western Australia. It is an erect or spreading shrub usually with narrowly oblong leaves, and dense clusters of up to ten densely hairy, white to yellow flowers.
Cryptandra craigiae is a flowering plant in the family Rhamnaceae and is endemic to a restricted area of southern Western Australia. It is a shrub with linear leaves and dense clusters of white or cream-coloured, tube-shaped flowers.
Spyridium spadiceum is a species of flowering plant in the family Rhamnaceae and is endemic to the south of Western Australia. It is an erect or semi-prostrate shrub with narrowly oblong to oval leaves and heads of hairy flowers with brown bracts at the base.
Spyridium stenophyllum is a species of flowering plant in the family Rhamnaceae and is endemic to the south of South Australia. It is a sticky shrub with narrowly Y-shaped leaves, and heads of white to cream-coloured flowers surrounded by densely felty-hairy floral leaves.
Spyridium tricolor is a species of flowering plant in the family Rhamnaceae and is endemic to southern continental Australia. It is an erect shrub with broadly elliptic to round leaves, and dense clusters of densely woolly-hairy, cream-coloured flowers.
Spyridium villosum is a species of flowering plant in the family Rhamnaceae and is endemic to the south-west of Western Australia. It is a small shrub with shaggy-hairy branchlets, linear to oblong leaves and dense heads of hairy flowers with broad brown bracts at the base.
Stenanthemum complicatum is a species of flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia. It is a woody, erect or straggling shrub with densely hairy young stems, broadly egg-shaped leaves and densely woolly-hairy heads of tube-shaped flowers.
Stenanthemum divaricatum is a species of flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia. It is a small, often spiny shrub with sparsely hairy young stems, fan-shaped to narrowly egg-shaped leaves and densely, softly-hairy heads of tube-shaped flowers.
Stenanthemum emarginatum is a species of flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia. It is a spreading to prostrate shrub with sparsely hairy young stems, narrowly fan-shaped to linear leaves and densely, shaggy-hairy heads of white or cream-coloured flowers.
Cryptandra intonsa is a flowering plant in the family Rhamnaceae and is endemic to inland Western Australia. It is an erect or spreading shrub with linear to narrowly oblong leaves and white or cream-coloured, tube-shaped flowers arranged in head-like clusters.
Stenanthemum intricatum is a species of flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia. It is an erect to spreading, often wiry shrub with sparsely hairy young stems, egg-shaped to fan-shaped leaves and greyish, densely softly-hairy heads of white or cream-coloured flowers.
Stenanthemum limitatum is a species of flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia. It is an erect or straggling shrub with sparsely hairy young stems, egg-shaped to fan-shaped leaves and greyish, softly-hairy heads of white or cream-coloured flowers.
Stenanthemum mediale is a species of flowering plant in the family Rhamnaceae and is endemic to inland Western Australia. It is an erect shrub with densely hairy young stems, egg-shaped leaves and densely hairy heads of silvery to rust-coloured flowers.
Cryptandra nola is a flowering plant in the family Rhamnaceae and is endemic to the western region of Western Australia. It is an erect or spreading, spiny shrub with oblong to elliptic leaves and clusters of white, tube-shaped flowers.
Stenanthemum reissekii is a species of flowering plant in the family Rhamnaceae and is endemic to the south-west of Western Australia. It is an erect or low-lying shrub with hairy young stems, egg-shaped or narrowly egg-shaped leaves with the narrower end towards the base, and clusters of densely hairy white or cream-coloured flowers.
Cryptandra recurva is a flowering plant in the family Rhamnaceae and is endemic to Western Australia. It is an erect, spreading shrub with densely hairy young stems, narrowly oblong to narrowly egg-shaped leaves and clusters of white, cream-coloured or off-white, tube-shaped flowers.
