Hedgehog Cactus—Echinocereus polyacanthus.

Opuntia acanthocarpa.

Cholla
Opúntia fúlgida
Red
Spring, summer
Arizona

A horrible shrub, or dwarf tree, four to six feet high, with a thick trunk and several, spreading, contorted branches, with cylindrical joints, twisting in awkward ways. The trunk and larger limbs are brownish-gray, starred with dead, dry spines, but the twigs are pale bluish-green, covered thickly with stars of pale-yellowish spines, each an inch or so long, with a barbed tip. From the numerous magenta flowers strange, yellowish, cup-shaped fruits develop, seeming to spring one out of the other in a haphazard way, hanging in long chains, awkward but rather ornamental, and remaining on the plants for several years without change, except that they grow slightly larger. The distant effect of this plant is a pale, fuzzy mass, attractive in color, giving no hint of its treacherous character—more like a wild beast than a plant! The joints suggest a very ferocious chestnut-burr and break off at a touch, thrusting their spines deeply into the flesh of the unwary passer-by, so that the Indian story, that this plant flings its darts at wayfarers from a distance, might almost as well be true, and the barbs making the extraction difficult and painful. The ground under the plants is strewn with fallen joints, which take root and propagate themselves. Small animals pile these around their holes for defense, several kinds of birds build in the thorny branches and are safe from enemies, and the fruits, being spineless and succulent, are valuable for fodder, so the Cholla is not entirely malevolent. The name is pronounced Choya. There are many similar kinds, some with very handsome rose-like flowers, others with bright scarlet fruits. They are curious and interesting inhabitants of the desert.

Prickly Pear
Opúntia basilàris
Pink
Spring
Arizona

Low plants, with no main stem, with spreading, flattened branches, the joints of which are flat disks, resembling fleshy, bluish-green leaves. These disks are half an inch to an inch thick and six inches long, more or less heart-shaped, sprouting one out of the other, at unexpected angles. The beautiful flower is about three inches across, like a tissue-paper rose, pale or very deep pink, with a whitish pistil, yellow anthers, and crimson filaments. The joints have a strong fishy smell, when cut, and are dotted with tufts of small, brown bristles, exceedingly unpleasant to get in one's fingers. This is rare and grows at the Grand Canyon. Prickly pears usually have yellow flowers and long spines.

Opuntia basilaris.