Pomaderris obcordata
{{short description|Species of plant}}
{{Use dmy dates|date=September 2020}}
{{Speciesbox
| image = Pomaderris obcordata.jpg
| image_caption = In Coffin Bay National Park
| genus = Pomaderris
| species = obcordata
| authority = Fenzl{{cite web |title=Pomaderris obcordata |url=https://biodiversity.org.au/nsl/services/apc-format/display/112232 |publisher=Australian Plant Census |accessdate=20 March 2022}}
|synonyms =
- Pomaderris biaurita (Reissek & F.Muell.) F.Muell.
- Pomaderris biauritum F.Muell. orth. var.
- Trymalium biauritum Reissek & F.Muell.
- Trymalium bilobatum F.Muell.
- Trymalium bilobatum F.Muell.
}}
Pomaderris obcordata, commonly known as wedge-leaved pomaderris,{{cite web |title=Pomaderris obcordata |url=http://www.flora.sa.gov.au/cgi-bin/speciesfacts_display.cgi?form=speciesfacts&name=Pomaderris_obcordata |publisher=State Herbarium of South Australia |access-date=20 March 2022}} is a species of flowering plant in the family Rhamnaceae and is endemic to South Australia. It is a shrub with densely hairy branchlets, wedge-shaped, narrowly egg-shaped or heart-shaped leaves with the narrower end towards the base, and white to pink flowers.
Description
Pomaderris obcordata is a shrub that typically grows to a height of {{cvt|0.3–1|m}} and has its branchlets densely covered with simple and star-shaped hairs. The leaves are wedge-shaped, narrowly egg-shaped or heart-shaped with the narrower end towards the base, {{cvt|6–18|mm}} long and {{cvt|2–12|mm}} wide with stipules {{cvt|2–3|mm}} long at the base. The upper surface of the leaves is glabrous and the lower surface is covered with woolly, star-shaped hairs. The flowers are white to pink and are borne in groups on the ends of branches, each flower on a hairy pedicel {{cvt|2–3|mm}} long. The sepals are {{cvt|1.8–2.5|mm}} long, there are no petals and the style is branched at the tip. Flowering mainly occurs from July to September.{{cite web |last1=Walsh |first1=Neville G. |title=Pomaderris obcordata |url=https://vicflora.rbg.vic.gov.au/flora/taxon/1989233c-7ea4-4652-a8d4-0c6df8f1570f |publisher=Royal Botanic Gardens Victoria |access-date=20 March 2022}}
Taxonomy
Pomaderris obcordata was first formally described in 1837 by Eduard Fenzl in Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in sinu Regis Georgii collegit Carolus Liber Baro de Hügel from specimens collected by Ferdinand Bauer.{{cite web |title=Pomaderris obcordata |url=https://biodiversity.org.au/nsl/services/rest/instance/apni/545153 |publisher=Australian Plant Name Index |accessdate=20 March 2022}} The specific epithet (obcordata) means "inverted heart-shaped".{{cite book |last1=Sharr |first1=Francis Aubi |last2=George |first2=Alex |title=Western Australian Plant Names and Their Meanings |date=2019 |publisher=Four Gables Press |location=Kardinya, WA |isbn=9780958034180 |page=263 |edition=3rd}}
Distribution and habitat
Wedge-leaved pomaderris grows in mallee scrub, or heath and occurs in south-eastern South Australia, including on the Eyre and Yorke Peninsulas and Kangaroo Island. There are two records from far western Victoria, the most recent from 1969, but may be examples of inaccurate locality recording.
References
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Category:Flora of South Australia