Marshmarigold, Caltha palustris 'Alba'.

Marsh marigold, Caltha palustris 'Alba'.

Marsh marigold, Caltha palustris.

Blue, funnel-shaped, pendent flowers of Virginia Bluebell, Mertensia virginica with water droplets on petals.

Common Water Hyacinth, Eichornia crassipes. Spikes of pale blue flowers of water plant considered invasive outside native habitat.

Virginia Bluebell, Mertensia virginica with branched stems of clustered, funnel-shaped blue and violet coloured flowers.

Yellow Oleander, Thevetia peruviana. Single open flower and buds growing in Phrao, Chiang Mai, Thailand.

Chilli, Capsicum annuumLaos, Red chilli peppers laid out to dry on woven matting in village on the Mekong River. Laos,

Cocoa bean, Theobroma cacao. Cocoa beans and pod. Mexico, Oaxaca,

Cocoa bean, Theobroma cacao. Cocoa beans and pod. Mexico, Oaxaca,

Evening Primrose, Oenothera speciosa.

Passion flower, Passiflora caerulea.

Passion flower, Passiflora caerulea.

Passion flower, Passiflora caerulea.

Grass, Pampas grass, Cortaderia selloana.