National Geographic : 1925 Sep
THE NATIONAL GEOGRAPHIC MAGAZINE BANNERS OF THE DESERT The strawberry cactus (Echinocereus stramineus), showing a small cluster of heads in the lower illustration and a nearer view above. The common name is suggested by the delicious brown ish-red berries, crisp and juicy, which taste like strawberries. The green, spiny heads, hundreds in number in favorable places, are closely massed, forming great oval clusters three or four feet in diameter. The heads are covered thickly with long slender spines, and from the side spring the brilliant flowers. These plants thrive on limestone ledges and in blossom time they cause canyon walls to blaze with color. The blooms are sensitive to light; they reach the height of their glory in the morning sunlight, close toward evening, and " sleep " at night.