Spyridium tricolor

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Spyridium tricolor
Spyridium tricolor.jpg
Status DECF P2.svg
Priority Two — Poorly Known Taxa (DEC)
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rhamnaceae
Genus: Spyridium
Species:
S. tricolor
Binomial name
Spyridium tricolor

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.

Contents

Description

Spyridium tricolor is an erect, dense, rounded, densely hairy shrub that typically grows to a height of 0.3–1.5 m (1 ft 0 in – 4 ft 11 in). Its leaves are broadly elliptic to round, 8–13 mm (0.31–0.51 in) long and 7.5–12 mm (0.30–0.47 in) wide on a petiole 3–5 mm (0.12–0.20 in) long, with egg-shaped stipules 3–5.5 mm (0.12–0.22 in) long at the base. The flowers are cream-coloured, densely woolly-hairy and borne on the ends of branches in up to 3 clusters of 12 to 20 flowers on a branched rachis. Each cluster is surrounded by overlapping, broadly egg-shaped involucral bracts 4–6 mm (0.16–0.24 in) long, with a single cream-coloured leaf like bract. The floral tube is 1.2–1.5 mm (0.047–0.059 in) long, the sepals egg-shaped and 1.0–1.3 mm (0.039–0.051 in) long, and both are densely covered with white hairs. Flowering occurs throughout the year. [2] [3]

Taxonomy

Spyridium tricolor was first formally described in 1993 by William Robert Barker and Barbara Lynette Rye in the Journal of the Adelaide Botanic Gardens from specimens collected by Paul G. Wilson, near Point Dover on the Great Australian Bight in 1967. [2] [4] The specific epithet (tricolor) means "three-coloured", referring to the leaves, pale to mid-green on the upper surface, rust-coloured at first, later grey on the lower surface. [2]

Distribution and habitat

This spyridium grows in sandy soil with limestone, often in mallee shrubland between Cape Arid National Park and Eyre in Western Australia, and disjunctly near Ceduna in South Australia. [2] [3] [5]

Conservation status

Spyridium tricolor is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions. [3]

Related Research Articles

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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.

Pomaderris crassifolia is a species of flowering plant in the family Rhamnaceae and is endemic to eastern Australia. It is a shrub with hairy young stems, egg-shaped or elliptic leaves, and clusters of cream-coloured or yellow flowers.

<i>Pomaderris subcapitata</i> Species of plant

Pomaderris subcapitata is a species of flowering plant in the family Rhamnaceae and is endemic to south-eastern continental Australia. It is a shrub with hairy stems, elliptic to egg-shaped leaves and dense clusters of cream-coloured or yellow flowers.

<i>Spyridium scortechinii</i> Species of shrub

Spyridium scortechinii is a species of flowering plant in the family Rhamnaceae and is endemic to eastern Australia. It is a shrub with egg-shaped to narrowly elliptic leaves, and dense heads of white, woolly-hairy flowers with brown bracts at the base.

<i>Spyridium cinereum</i> Species of shrub

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Spyridium fontis-woodii, commonly known as Woods Well spyridium, is a species of flowering plant in the family Rhamnaceae and is endemic to a small area of Coorong National Park in South Australia. It is a slender shrub with softly-hairy young stems, broadly egg-shaped to broadly heart-shaped leaves with the narrower end towards the base, and head of white to cream-coloured flowers.

<i>Spyridium furculentum</i> Species of shrub

Spyridium furculentum, commonly known as forked spyridium, is a species of flowering plant in the family Rhamnaceae and is endemic to a small area of Victoria in Australia. It is a shrub with softly-hairy young stems, Y-shaped leaves, and head of white to cream-coloured flowers.

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.

Spyridium nitidum, commonly known as shining spyridium, is a species of flowering plant in the family Rhamnaceae and is endemic to south-eastern continental Australia. It is an erect, spindly shrub with narrowly elliptic or narrowly egg-shaped leaves with the narrower end towards the base, and heads of hairy, woolly white flowers.

Spyridium × ramosissimum, commonly known as branched spyridium, is a species of flowering plant in the family Rhamnaceae and is endemic to Victoria in Australia. It is a small shrub with woolly-hairy branches, egg-shaped leaves, and crowded heads of hairy flowers with brown bracts.

<i>Spyridium riparium</i> Species of shrub

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.

<i>Spyridium spadiceum</i> Species of shrub

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.

Pimelea eyrei is a species of flowering plant in the family Thymelaeaceae and is endemic to the southwest of Western Australia. It is an erect shrub with hairy, narrowly elliptic leaves and clusters of densely hairy, white or cream-coloured flowers.

<i>Spyridium stenophyllum</i> Species of shrub

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.

Cryptandra distigma is a flowering plant in the family Rhamnaceae and is endemic to inland Western Australia. It is a shrub with oblong or narrowly egg-shaped leaves and clusters of white to cream-coloured, tube-shaped flowers.

<i>Spyridium subochreatum</i> Species of shrub

Spyridium subochreatum is a species of flowering plant in the family Rhamnaceae and is endemic to southern continental Australia. It is a low shrub with linear to oblong or narrowly egg-shaped leaves, and dense clusters of creamy-white flowers with dark brown, papery bracts at the base.

<i>Spyridium thymifolium</i> Species of shrub

Spyridium thymifolium, commonly known as thyme-leaved spyridium, is a species of flowering plant in the family Rhamnaceae and is endemic to the south-east of South Australia. It is a small shrub with egg-shaped to almost round leaves, and heads of woolly-hairy flowers.

References

  1. "Spyridium tricolor". Australian Plant Census. Retrieved 15 November 2022.
  2. 1 2 3 4 Barker, William R.; Rye, Barbara L. (1993). "Spyridium tricolor (Rhamnaceae), a disjunct new species from the Great Australian Bight". Journal of the Adelaide Botanic Gardens. 15 (2): 153–157. Retrieved 15 November 2022.
  3. 1 2 3 "Spyridium tricolor". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. "Spyridium tricolor". Australian Plant Name Index. Retrieved 15 November 2022.
  5. Rye, Barbara L. (1996). "A synopsis of the genera Pomaderris, Siegfriedia, Spyridium and Trymalium (Rhamnaceae) in Western Australia". Nuytsia. 11 (1): 124. Retrieved 15 November 2022.