Pilea melastomoides

 
An indigenous tall herb or undershrub common in damp shady places of wet zone forests from 700 to 2000 m elevations. Flowering and fruiting from March to September. 

Flower Size > Male flower - 0.4 cm across , Female flower - 0.15 cm across

                        

Pilea wightii

An indigenous herb common in forests and shady places of montane wet zone from 1500 to 2300 m elevations. Flowering and fruiting from October to April.

Male flower size - 4 mm across

Female flower size - 1.5 mm across

Gonostegia triandra (Syn: Pouzolzia bennettiana)

 An indigenous herb or small shrub of wet zone montane forest from 1200 to 2200 m elevations. Flowering and fruiting throughout the year

Elatostema acuminatum

A very rare Critically Endangered indigenous herb occurs in the forests of the lower montane wet zone. H. Trimen has recorded it from Dolosbage (in 1868) and no other specimen available as per Dassanayake M.D. & Clayton W.D, 1999. However recently published Illustrated field guide to the flowers of Sri Lanka Volume 3 by Vlas de J. et.al is illustrated with a photograph of this species.

ගස් දූල් [Gas dul]/Wild rhea (Debregeasia longifolia)

 Common native shrub or small tree of wet montane forests from 750 to 1500 m elevations. Flowering and fruiting from October to February.

Elatostema lineolatum

An indigenous herb occurs on wet rocks and shady stream banks of the wet zone forests up to about 1000 m elevations. 

Boehmeria virgata [Syn: Boehmeria macrophylla var. macrophylla]

An indigenous shrub occurs in wet montane forests from 650 to 1800 m elevations. Flowering from October to April.

Gonostegia pentandra var. wightii [Syn: Pouzolzia walkeriana]

Rather common native large herb occurs in shaded roadsides and dry and lower moist forests up to 800 m elevations. Flowering from October to April.

Artillery Plant/Gunpowder plant (Pilea microphylla)

An introduced prostrate herb native to tropical America. Naturalized in the low country and common in the crevices of stone walls, moist walls of houses, and gardens. Also cultivated in pots. Flowers very small (0.05 - 0.15 cm) and male flowers explosively discharged their pollen into the air. Hence the above vernacular names.  Flowering and fruiting occurs throughout the year.