Brachyscome dichromosomatica var. alba C.R.Carter

Telopea 1 (5): 392 (1978)

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: data deficient (k)

Decumbent to ascending annual, 2–15 cm high, mainly glabrous but sometimes with scattered eglandular hairs. Leaves mostly or only basal, sometimes linear but usually pinnatisect, 1–8 cm long, segments 5–9, linear, to c. 15 mm long, often slightly succulent, mainly glabrous but some broad eglandular hairs usually present; lobes linear. Bracts 8–13, 1-seriate, c. equal, very widely obovate to ovate or elliptic, 3.5–6 mm long, 1.5–4 mm wide, mainly herbaceous but with scarious, often purplish margins, glabrous; ligules (5–)6–12 mm long, white; disc florets up to 50. Cypselas more or less obtriangular, straight, 2.5–3.5 mm long (excluding pappus), 1.5–2 mm wide, whitish or pale brown, with a dense, unbroken line of c. 2 mm long, eglandular hairs on the ridge of each lateral face; pappus 1–1.3 mm long, bristles rather broad, irregularly fimbriate, fused for about one-third their length. Flowers Sep. (1 record).

MSB. Also in SA, NSW. Known in Victoria by a single 2012 collection from Neds Corner Station in the far north-west, where growing in a small run-on in chenopod shrubland.

Likely to be more widespread and overlooked for the very similar B. lineariloba from which it differs morphologically by the longer ligules, and cytologically in having just two pairs of chromosomes.

Created by: Neville Walsh, 2017-02-17
Updated by: Val Stajsic, 2018-11-28
Distribution map

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Brachyscome dichromosomatica var. alba in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Brachyscome dichromosomatica var. alba in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Scroll Belt present native