African Milk Tree, Euphorbia trigona f. 'Rubra', Several angled spikey stems of the showing the red edges.

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

Cactus,Twin-spined cactus, Mammillaria geminispina

Aloe, close up of spiky leaves.

Cactus, Golden easter Lily cactus, Echinopsis aurea var. leucomalla, yellow flowers on top of spiky plant.

Variegated Sword Lily, Furcraea selloa var. marginata, close up detail of leaves.

Polka Dot Cactus, Bunney ears, Opuntia microdasys aureispina, close up deatil showing texture.

Cactus, wheel cactus, Opuntia robusta.

Houseleek, Sempervivum tectorum. Rosette of pointed, fleshy leaves growing with other varieties on grey, stone wall. Exterior of house part seen behind.

Cactus, dose up detail of Aporocactus.

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,