Roepera emarginata (H.Eichler) Beier & Thulin APNI* Synonyms: Zygophyllum emarginatum H.Eichler APNI*
Description: Spreading annual, branching from the base.
Leaflets articulate at base, cuneate to narrow-obcordate, 4–8 mm long, apex mostly distinctly emarginate.
Sepals 4. Petals 4, obovate to elliptic, 2–3 mm long, about as long as, or slightly longer than sepals, yellow. Stamens 8; filaments with ± truncate wings in lower half. Fruiting pedicels 1.5–5 mm long, recurved or spreading.
Capsule 4-angled, broad-turbinate, 5–7 mm long, base rounded, apex almost flat to widely dome-shaped with a very short appendage at top of each angle; seeds 1 or 2 per loculus.
Flowering: June–September
Distribution and occurrence: Grows on skeletal stony ridges and flats, on gibber-covered rises, in heavy stony clay; west from Bourke district, chiefly in the Milparinka area. Also in SW Qld, NE South Australia and SE Northern Territory.
NSW subdivisions: NFWP
Other Australian states: Qld S.A. N.T.
Text by Hj. Eichler (1992); edited KL Wilson (Jan 2014)
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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