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Opercularia diphylla Gaertn.
Family Rubiaceae
Opercularia diphylla Gaertn. APNI*

Description: Small weak or procumbent herb; stems glabrous or minutely scabrous.

Leaves narrow-lanceolate to narrow-ovate, 1–3 cm long, 1–8 mm wide, apex attenuate, upper surface minutely scabrous, lower surface ± glabrous; petiole to 4 mm long.

Flowering heads on recurved peduncles, usually 2–9 mm long. Calyx lobes 0.5–1 mm long. Corolla 1.5–3 mm long. Fruiting heads 3–8 mm diam.; outer surface of seeds transversely wrinkled, inner surface ± pitted.


Habit
Photo L. von Richter

Flower
Photo J. Plaza

Fruit
Photo L. von Richter

Flowering: spring–autumn.

Distribution and occurrence: Grows in sclerophyll forest, heath, grassland, often in sandy soils; widespread.
NSW subdivisions: NC, CC, SC, CT, NWS, CWS
Other Australian states: Qld
AVH map***

Text by T. A. James & W. K. Allen
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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