''Cyanothamnus yarrowmerensis'' is a species of erect, woody shrub that is endemic to Queensland. It has pinnate or bipinnate leaves and groups of up to seven flowers with white petals in leaf

axil A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, st ...

Description

''Cyanothamnus yarrowmerensis'' is an erect, woody shrub that typically grows to a height of about . It has pinnate or bipinnate leaves long and wide with between three and seven leaflets on a petiole long. The end leaflet is linear, long and about wide and the side leaflets are similar but longer. The flowers are white and are arranged in groups of up to seven in leaf

s on a

peduncle Peduncle may refer to: *Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed *Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body **Peduncle (art ...

about long. The sepals are circular, about long and wide and the

petal Petals are modified Leaf, leaves that surround the reproductive parts of flowers. They are often advertising coloration, brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''c ...

s are long. The

stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filame ...

s and the style are hairy and the stigma is minute, scarcely wider than the style. Flowering has been observed in October and the fruit is a glabrous capsule about long and wide.

Taxonomy and naming

This species was first formally described in 2003 by Marco F. Duretto and given the name ''Boronia yarrowmerensis'' in the journal '' Muelleria'' from a specimen collected north of Yarrowmere Station homestead. In a 2013 paper in the journal '' Taxon'',

Marco Duretto Marco Duretto (born 1964) is a manager and senior research scientist at the Royal Botanic Gardens Sydney in Australia. His primary research interests are systematics and conservation of Rutaceae, Rubiaceae, Orchidaceae, Stylidiaceae and evolut ...

and others changed the name to ''Cyanothamnus yarrowmerensis'' on the basis of cladistic analysis. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

(''yarrowmerensis'') refers to type location.

Distribution and habitat

''Cyanothamnus yarrowmerensis'' is only known from the type location in

North Queensland North Queensland or the Northern Region is the northern part of the Australian state of Queensland that lies just south of Far North Queensland. Queensland is a massive state, larger than many countries, and its tropical northern part has been ...

where it grows in '' Eucalyptus'' forest or woodland on sandy soil .

Conservation

''Cyanothamnus yarrowmerensis'' (as ''Boronia yarrowmerensisis'') is listed as of "least concern" by the Queensland Government Department of Environment and Science.

References

{{Taxonbar, from=Q106902293 yarrowmerensis Flora of Queensland Plants described in 2003 Taxa named by Marco Duretto