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Euphrasia arguta R.Br.
Family Orobanchaceae
Euphrasia arguta R.Br. APNI*

Description: Erect annual herb 20–35 cm high, branches densely hairy with recurved non-glandular hairs.

Upper stem leaves ovate to elliptic, often broadly so, 6–14 mm long, 3.5–13 mm wide, margins ± deeply lobed, usually with 2–4 pairs of teeth.

Racemes mostly 50–90-flowered. Calyx 5.5–7 mm long, usually scabrous. Corolla 10–14 mm long, white to lilac with yellow; tube 6.7–8.5 mm long, glabrous at base. Stamen filaments usually glabrous; anthers 0.9–1.7 mm long, connective hairy.

Capsule 4–7.5 mm long, upper half bristly.

Flowering: October–January

Distribution and occurrence: Grows in grassy areas near rivers, recorded from Bathurst to Walcha area (possibly extinct).
NSW subdivisions: NC, NT, CT, NWS, CWS

Threatened species: NSW TSCA: Critically Endangered ROTAP: 3X
AVH map***

A specimen from Nundle (NWS), is possibly a hybrid with E. collina subsp. paludosa. It is similar to E. arguta but the calyx is glabrous.

Text by W. R. Barker
Taxon concept: Flora of NSW 3 (1992)

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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