Yucca, Yucca filamentosa, Close up of white flowers growing outdoor.

Yucca, Yucca filamentosa, Close up of white flowers growing outdoor.

Yucca, Yucca Elephantipes, Single plant growing outdoor against a wall.-

Cow's horn, Euphorbia grandicornis, Close up showing the spines and small yellow flowers.

Yucca, Yucca aloifolia 'Vittorio Emanuele II', Close up of the white flowers.

Cow horn, Euphorbia grandicornis. Close view of tiny yellow flowers growing along edges of spiny, fleshy leaves.

Our Lords candle, Hesperoyucca whipplei. Spikes of creamy yellow flowers extending from rosette of stiff, spine tipped leaves. USA, California, Sequoia National Park,

Creosote bush, Larrea tridentata. Creosote Bush, Larrea tridentata, Growing in Death Valley, Arizona, USA.

Creosote bush, Larrea tridentata. Creosote Bush, Larrea tridentata, Growing in Death Valley, Arizona, USA.

Creosote bush, Larrea tridentata. Creosote Bush, Larrea tridentata, Growing in Death Valley, Arizona, USA.

Creosote bush, Larrea tridentata. Creosote Bush, Larrea tridentata, Growing in Death Valley, Arizona, USA.

Desert Shrub.