''Spyridium cinereum'', commonly known as tiny spiridium,
is a species of flowering plant in the family
Rhamnaceae
The Rhamnaceae are a large Family (biology), family of flowering plants, mostly trees, shrubs, and some vines, commonly called the buckthorn family. Rhamnaceae is included in the order Rosales.
The family contains about 55 genera and 950 specie ...
and is
endemic
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to south-eastern continental Australia. It is a low-lying shrub with heart-shaped leaves, the narrower end towards the base, and heads of whitish, shaggy-hairy flowers with brown
bract
In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale.
Bracts are usually different from foliage leaves in size, color, shape or texture. They also lo ...
s at the base of the heads.
Description
''Spyridium cinereum'' is a low-lying shrub or subshrub that typically grows to a height of . The leaves are heart-shaped with the narrower end towards the base, long and wide with a small point in the centre of the notch. Both surfaces of the leaves are woolly-hairy, especially the upper surface, and the edges of the leaves are rolled under. The
heads of flowers are arranged on the ends of branches, each with a leaf and several brown
bract
In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale.
Bracts are usually different from foliage leaves in size, color, shape or texture. They also lo ...
s at the base, the head in flattish
umbel
UMBEL (Upper Mapping and Binding Exchange Layer) is a logically organized knowledge graph of 34,000 concepts and entity types that can be used in information science for relating information from disparate sources to one another. It was retired ...
s about in diameter. The
sepal
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106
Etymology
The term ''sepalum'' ...
s are about long, the petals whitish, long and shaggy-hairy on the outside. Flowering occurs from October to January and the fruit is a
capsule about long.
Taxonomy
''Spyridium cinereum'' was first formally described in 1957 by
Norman Arthur Wakefield in ''
The Victorian Naturalist
''The Victorian Naturalist'' is a bimonthly scientific journal covering natural history, especially of Australia. It is published by the Field Naturalists Club of Victoria and is received as part of the membership subscription of that club. From ...
'' of specimens he collected near
Mallacoota aerodrome.
The
specific epithet
In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...
(''cinereum'') means "ash-coloured".
Distribution
''Spyridium cinereum'' grows in coastal heath and low scrub in
disjunct populations near
Nadgee in the far south-east of New South Wales, far north-eastern Victoria and in the north-east
Grampians
The Grampian Mountains () is one of the three major mountain ranges in Scotland, that together occupy about half of Scotland. The other two ranges are the Northwest Highlands and the Southern Uplands. The Grampian range extends northeast to so ...
.
References
{{Taxonbar, from=Q17241640
cinereum
Rosales of Australia
Flora of New South Wales
Flora of Victoria (state)
Taxa named by Norman Arthur Wakefield
Plants described in 1957