Plants, Trees, Dried spikey leaves of a tropical tree.
Agave, Close up of thorns on plant before opening.
Mojave Aster in Red Rock Canyon State Park, California, USA.
Aloe vera, Two plants in foreground, one with a flowering spike and others behind, Growing on a dry terrain against a blue sky.
Montbretia, Crocosmia 'Lucifer', Branched spike with emerging showy funnel-shaped red flowers isolated in shallow focus against a green and grey background.
Montbretia, Crocosmia 'Lucifer', Branched spike with emerging showy funnel-shaped red flowers isolated in shallow focus against a green and grey background.
Montbretia, Crocosmia 'Lucifer', Branched spike with emerging showy funnel-shaped red flowers isolated in shallow focus against a green and grey background.
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.
Sweet rocket, Hesperis matronalis, close view of flower spike of four petalled pale purple flowers.
Sweet rocket, Hesperis matronalis, close view of spike of four petalled white flowers.
Hollyhock, Alcea rosea cultivar. Flower spike with deep, pinkish red flowers. Thailand, Chiang Mai, San Kamphaeng,