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Olearia asterotricha (F.Muell.) F.Muell. ex Benth.
Family Asteraceae
Common name: Rough Daisy-bush

Olearia asterotricha (F.Muell.) F.Muell. ex Benth. APNI*

Synonyms: Olearia asterotricha var. parvifolia Benth. APNI*

Description: Shrub to 2 m high.

Leaves alternate, scattered or crowded; lamina narrow-obovate, 6–27 mm long, 2–6 mm wide; apex acute or rounded, without a mucro; margins toothed or lobed or entire, revolute; surfaces discolorous, upper surface stellate-hairy and green, lower surface grey-stellate-hairy; venation indistinct; sessile or subsessile.

Heads terminal, solitary or clustered, pedunculate or sessile, 21–37 mm diam.; peduncle to 27 mm long. Ray florets 12–21, white. Disc florets 25–39, yellow.

Achenes silky; pappus with 36–55 long bristles in 2-series and an outer row of short bristles.


Herbarium
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Herbarium
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Flowering: October–July.

Distribution and occurrence: Grows in heath or dry sclerophyll forest in mountainous areas; chiefly from the Blue Mtns to the Moss Vale district.
NSW subdivisions: CC, CT
Other Australian states: Vic.
AVH map***

Messina et al. recognise four subspecies in O. asterotricha, of which only subsp. glaucophylla occurs in NSW. The remaining three subsp. are confined to Victoria. The varietal name O. asterotricha var. parvifolia Benth. has been applied (incorrectly) to specimens with leaves that are generally short and crowded.

Text by N. S. Lander
Taxon concept: Flora of NSW 3 (1992); Messina et al. (2014) A revision of Olearia section Astrotriche (Asteraceae: Asterae). Aust. Syst. Bot. 27, 199–240.

One subspecies in NSW: Olearia asterotricha subsp. glaucophylla

APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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