Silk Floss tree, Ceiba speciosa, Several pink tinged white flowers with prominent stigmas. Against blue sky.

Silk Floss tree, Ceiba speciosa, View from underneath looking up the trunk of tree showing large conical shaped thorns and branches above.

Madeira squill, Scilla madeirensis, Close side view of a flower spike with the tiny star shaped pale blue flowers only open in a band while others remain in bud.

Madeira squill, Scilla madeirensis, Close side view of a flower spike with the tiny star shaped pale blue flowers only open in a band while others remain in bud.

Cactus, A spikey blue leaf showing groups of spines.

Damson plum, Prunus domestica L. subsp. insititia, Several black fruits with a blue bloom hanging in a group from twigs with leaves.

Damson plum, Prunus domestica L. subsp. insititia, Several black fruits with a blue bloom hanging in a group from twigs with leaves.

Chicory, Cichorium intybus, Front view of pale blue daisy flowers growing off the side of several stems.

Chicory, Cichorium intybus, Close front view of one pale blue daisy flower growing off the side of a stem.

Cedar, Cedrus, A slice through a tree trunk showing the many rings and some outer bark.

Dandelion, Taraxacum officinale, Side view of a fluffy white seedhead sunk into blue fabric.

Sage, Salvia guaranitica 'Blue Enigma', Side view of several stems with lipped blue flowers.