Cholla (fruit).
Opuntia fulgida.
Common Prickly Pear
Opúntia
Yellow
Spring, summer
Southwest
There are fifty or more common kinds of Prickly Pear, many of them as yet undescribed and little known. They have flattened joints and yellow flowers, like the one illustrated, which is typical, often measuring three or four inches across, the petals variously tinted outside with salmon, rose, and brown.
There are many kinds of Cactus, round, cylindrical, or oval plants, covered with knobs, bearing clusters of spines, those of some species having hooked tips. They may be known by their smooth fruits, without scales or spines.
Pincushion Cactus
Cáctus Gràhami (Mamillaria)
Pink
Spring
Arizona
A quaint little plant, often no bigger than a billiard ball, with long, blackish, hooklike spines, projecting from stars of smaller spines. The flowers are pink and the berries are smooth, fleshy fingers of brightest scarlet, edible, pretty and odd. Sometimes we see one of these prickly little balls peeping from under a rock and again we find them growing in a colony, looking much like a pile of sea-urchins. This grows in the Grand Canyon, and there are similar kinds in southern California.
There are many kinds of Cereus, with cylindrical or oval stems, from a few inches to forty feet tall, not jointed, with ribs or rows of knobs, running lengthwise, and clusters of spines.
Column Cactus, Sahuaro
Cèreus gigantèus
White
Spring, summer
Arizona
These tree-like plants are wonderfully dignified and solemn in aspect, with none of the grotesque or ferocious effect so common among their relations. They grow in numbers on the mountain slopes around Tucson and are easily recognized by their size and very upright form, rearing their thick, cylindrical branches straight up in the air, to a height of thirty or forty feet. They are smooth and light green, armed with rows of spines in stars along the ridges, and ornamented during May and June with handsome, large, whitish, wax-like flowers, very perfect in form, opening in the daytime, blooming most abundantly on the sunny side of the plant and remaining open but a short time. Woodpeckers often make holes for nests in the branches, which are used afterwards by a little native owl, the smallest kind in the world, and by honey-bees, and these holes often lead to decay and to the ultimate death of the tree. The fruits, with crimson flesh and black seeds, are valued by the Papago Indians for food, and mature in enormous quantities in midsummer, but birds eat up many of the seeds and of the millions reaching the ground only a very few germinate and develop into odd, little round plants, a few inches high, often eaten by some animal before they become sufficiently prickly for protection.
