Synonyms: Pratia APNI*
Description: Annual or perennial herbs usually glabrous; stems erect and mostly few-branched or prostrate, monoecious [or dioecious], often with milky sap, usually with a tap root, rarely with adventitious roots.
Leaves alternate, cauline leaves sometimes reduced to bracts, margins toothed or rarely lobed or entire.
Inflorescence terminal and cymose or raceme-like or flowers solitary, with 1–3 leaf-like or reduced bracts or bracteoles. Flowers unisexual. Calyx shortly tubular, lobed. Corolla tube split almost to base on upper side, 2-lipped, with the upper lip of 2 erect or recurved often much shorter lobes, and the lower one of 3 spreading lobes. Stamens fused to corolla at base; filaments sometimes splitting with age; 3 upper anthers slightly longer and with or without hairs, the 2 lower ones shorter with or without apical hairs. Ovary inferior, 2-locular; stigma 2-lobed.
Fruit a capsule dehiscing mainly loculicidally, 2-valved.
Distribution and occurrence: World: >300 species, cosmopolitan, especially tropical & subtropical regions of North America, southern Africa & Australia. Australia: c. 20 species (native), all States.
Text by B. Wiecek
| ||Key to the species|| |
|1||Peduncles <5 mm long||2|
|Peduncles >5 mm long||4|
|2||Leaves to 12 mm long; corolla to 5 mm long||3|
|Leaves 10–30 mm long; corolla >5 mm long|
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|3||Leaves oblong to elliptic; 1–3 mm wide; inland species||Pratia darlingensis|
|Leaves ovate to spathulate or ± circular, 2.5–8 mm wide; tableland species.|
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|Pratia sp. A sensu Harden (1992)|
|4||Leaves usually obovate to spathulate, margins mostly entire||Pratia surrepens|
|Leaves not as above, margins ± toothed|
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|5||Leaves ovate to lanceolate to oblong-lanceolate, 10–30 mm long, glabrous||6|
|Leaves ovate to ± circular, mostly <10 mm long, usually hairy or glabrescent|
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|6||Peduncles 10–70 mm long; calyx lobes with a small basal tooth on each side; leaves mostly petiolate, often purplish on lower surface||Pratia purpurascens|
|Peduncles 3–13 mm long; calyx lobes without basal teeth; leaves sessile, green on lower surface|
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|7||Peduncles mostly <20 mm long; corolla 4–6 mm long||Pratia puberula|
|Peduncles >20 mm long, corolla usually 6–10 mm long|
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