Plants of South Eastern New South Wales

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Xanthosia stellata

Common name

Star xanthosia

Family

Apiaceae

Where found

Forest on sandstone. Blue Mountains south to Morton National Park. Occasionally in the Sydney area.

Notes

Shrub to 0.2 m high or scrambling. Stems and leaves sparsely stellate-hairy (needs a hand lens or a macro app on your phone/tablet to see). Leaves alternating up the stems, compound, with 3 leaflets, or 3-lobed, the leaflets/lobes more or less the same size as each other, 0.2–1.2 cm long, 2–10 mm wide, upper surface sparsely stellate-hairy, lower surface off-white to light green. Individual flowers with 5 white petals 1.1–1.3 mm long, and 5 green sepals each 1.3–1.5 mm long, in clusters of 1-3 flowers, looking like individual flowers. 2-3 petal-like bracteoles below the clusters, yellow becoming reddish, 4–6 mm long. Flower clusters single or paired. Flowers Nov.–Dec.

Vulnerable Vic.

PlantNET description:  http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Xanthosia~stellata (accessed 8 February, 2021)

Description above partly taken from Hart, J.M. & Henwood, M.J., (2000) Systematics of the Xanthosia pilosa complex (Apiaceae: Hydrocotyloideae). Australian Systematic Botany. 13(2): 252-256, Figs 8, 9