Stenocereus thurberi
Organpipe Cactus
Cactaceae
Cacti and succulents
Native to Ariazona and Mexico. Columnar cactus branching from base (also from top, if injured) to form a clump to 12 ft. wide. Dark green or gray-green stems grow quite slowly to 15 to 20 ft. tall; each stem reaches 6 in. thick, has 12–19 ribs, and is covered with black spines 1/2 to 1 in. long. In old plants, clump may contain 30 or more stems of varying heights; the arrangement is said to resemble a pipe organ. Blooms from mid to late spring; funnel-shaped, 3-in. flowers in white with a touch of pink to reddish purple open at night. Rounded, 1/2 -in.-long fruits are olive green, becoming red tinged when ripe. They split open to reveal edible, sweet, bright red pulp with black seeds. Needs excellent drainage.
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Dasylirion longissimum
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Rounded, arching growth to 3–5 ft. high, 5–8 ft. wide. Wrinkled, toothed gray-green leaves...
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