Zieria

Location & distribution maps

Common name:         ...

Conservation status: ...

Etymology:   

• The name Zieria honours "John Zier, a Polish botanist, who assisted F.C. Ehrhart in his collection of plants of the Electorate of Hanover, 1780-83, and afterwards worked in London, where he died in 1793"

Flowers

• The flowers are arranged in groups in the leaf axils and have four fused sepals and four petals alternating with the sepals

• There are four stamens (eight in Boronia) and four carpels with their styles fused

Fruit:                            

• The fruit have four lobes, each containing one or two seeds

Leaves:         

• The leaves are arranged in opposite pairs and are usually compound with three leaflets similar in shape but the middle leaflet slightly larger

Stem & branches: 

Roots:         

Habit:        

• Plants in the genus Zieria are shrubs or small trees

Habitat:   

Distribution:                  

Additional notes:    

• Taxonomy and naming

  • The genus Zieria was first formally described in 1798 by James Edward Smith and the description was published in Transactions of the Linnean Society of London.[1][5] Smith did not nominate a type species but James Armstrong nominated Zieria smithii as the lectotype

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• In a 2002 study of the genus, James Armstrong placed each species into one of six groups, based on its morphology. The groups are:

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• Group A: Z. adenodonta, Z. adenophora, Z. buxijugum, Z. collina, Z. floydii, Z. formosa, Z. furfuracea, Z. granulata, Z. hindii, Z. obcordata, Z. parrisiae, Z. robusta, Z. tuberculata, Z. verrucosa;

• Group B: Z. arborescens, Z. caducibracteata, Z. lasiocaulis, Z. oreocena, Z. southwellii;

• Group C: Z. chevalieri, Z. fraseri, Z. laevigata, Z. laxiflora;

• Group D: Z. montana, Z. prostrata, Z. robertsiorum, Z. smithii;

• Group E: Z. aspalathoides, Z. citriodora, Z. ingramii, Z. minutiflora, Z. obovata, Z. odorifera, Z. pilosa, Z. rimulosa;

• Group F: Z. baeuerlenii, Z. covenyi, Z. cytisoides, Z. involucrata, Z. littoralis, Z. murphyi, Z. veronicea.[9]

• In a 2015 study, using a combination of two non-coding chloroplast DNA regions, Internal transcribed spacer and some morphological characters, Cynthia Morton concluded that the genus as presently described is monophyletic. A tentative arrangement of 32 of Armstrong's 42 species was also suggested:

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• Group 1: Z. adenodonta, Z. baeuerlenii, Z. collina, Z. cytisoides;

• Group 2: Z. buxijugum, Z. caducibracteata, Z. formosa, Z. granulata, Z. littoralis, Z. parrisiae, Z. tuberculata, Z. verrucosa;

• Group 3: Z. fraseri, Z. odorifera;

• Group 4: Z. prostrata, Z. smithii;

• Group 5: Z. aspalathoides, Z. ingramii;

• Group 6: Z. adenophora, Z. furfuracea, Z. laxiflora;

• Group 7: Z. montana, Z. southwellii;

• Group 8: Z. covenyi, Z. murphyi, Z. odorifera, Z. robusta.

• Zieria citriodora, Z. arborescens, Z. minutiflora, Z. obcordata and Z. pilosa were not able to be resolved in this study.[10]

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• Distribution

• Plants in the genus Zieria are endemic to Australia, except for Zieria chevalieri, which is found in New Caledonia. Zierias occur in all Australian states except Western Australia.[2]

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• Species list

• The species described to date (October 2017) and listed by the Australian Plant Census are:[11]

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• Zieria actites Duretto & P.I.Forst.

• Zieria adenodonta (F.Muell.) J.A.Armstr. – Wollumbin zieria

• Zieria adenophora Blakely – Araluen zieria

• Zieria alata Duretto & P.I.Forst.

• Zieria arborescens Sims – stinkwood

• Zieria aspalathoides A.Cunn. ex Benth. – whorled zieria

• Zieria baeuerlenii J.A.Armstr. – Bomaderry zieria

• Zieria bifida Duretto & P.I.Forst.

• Zieria boolbunda Duretto & P.I.Forst. – Box Range zieria

• Zieria buxijugum J.D.Briggs & J.A.Armstr.

• Zieria caducibracteata J.A.Armstr.

• Zieria cephalophila Duretto & P.I.Forst.

• Zieria chevalieri Virot – endemic to New Caledonia

• Zieria citriodora J.A.Armstr. – lemon-scented zieria

• Zieria collina C.T.White – hill zieria

• Zieria compacta C.T.White

• Zieria covenyi J.A.Armstr. – Coveny's zieria

• Zieria cytisoides Sm. – downy zieria

• Zieria distans Duretto & P.I.Forst.

• Zieria eungellaensis Duretto & P.I.Forst.

• Zieria exsul Duretto & P.I.Forst.

• Zieria floydii J.A.Armstr. – Floyd's zieria

• Zieria formosa J.D.Briggs & J.A.Armstr. – shapely zieria

• Zieria fraseri Hook.

• Zieria furfuracea R.Br. ex Benth.

• Zieria graniticola J.A.Armstr. ex Duretto & P.I.Forst.

• Zieria granulata C.Moore ex Benth. – Illawarra zieria, hill zieria

• Zieria hindii J.A.Armstr. – Hind's zieria

• Zieria hydroscopica Duretto & P.I.Forst.

• Zieria inexpectata Duretto & P.I.Forst.

• Zieria ingramii J.A.Armstr – Keith's zieria

• Zieria insularis Duretto & P.I.Forst.

• Zieria involucrata R.Br. ex Benth.

• Zieria laevigata Bonpl. – smooth zieria, twiggy midge bush

• Zieria lasiocaulis – J.A.Armstr. Willi Willi zieria

• Zieria laxiflora (Benth.) Domin – wallum zieria

• Zieria littoralis J.A.Armstr. – dwarf zieria

• Zieria madida Duretto & P.I.Forst

• Zieria minutiflora Domin – twiggy zieria

• Zieria montana J.A.Armstr.

• Zieria murphyi Blakely – Murphy's zieria

• Zieria obcordata A.Cunn. – obcordate-leafed zieria

• Zieria obovata (C.T.White) J.A.Armstr.

• Zieria odorifera J.A.Armstr.

• Zieria oreocena J.A.Armstr. – Grampians zieria

• Zieria parrisiae J.D.Briggs & J.A.Armstr. – Parris' zieria

• Zieria pilosa Rudge – hairy zieria

• Zieria prostrata J.A.Armstr. – headland zieria

• Zieria rimulosa C.T.White

• Zieria robertsiorum J.A.Armstr.

• Zieria robusta Maiden & Betche – round-leafed zieria

• Zieria scopulus Duretto & P.I.Forst.

• Zieria smithii Jacks. – sandfly zieria

• Zieria southwellii J.A.Armstr.

• Zieria tenuis Duretto & P.I.Forst.

• Zieria tuberculata J.A.Armstr.

• Zieria vagans Duretto & P.I.Forst.

• Zieria veronicea (F.Muell.) Benth. – pink zieria

• Zieria verrucosa J.A.Armstr.

• Zieria whitei J.A.Armstr. ex Duretto & P.I.Forst.

Sources of information:

• (2024)