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Leptocereus grantianus
''Leptocereus grantianus'' (''sebucan'') is a sprawling or suberect, nearly spineless cactus, reaching up to 2 meters in height and 3 to 5 centimeters in diameter. Its elongated stems have from three to five prominent ribs with broadly scalloped edges. Ribs of young joints are thin, and the small areoles or spine-bearing areas may bear from one to three minute, nearly black spines which disappear as the joints grow older. The flowers are solitary at terminal areoles, from 3 to 6 centimeters long, and nocturnal. The outer perianth segments are linear, green, and tipped by an areole like those of the tube and ovary. The inner perianth segments are numerous, cream-colored, oblong-obvate, obtuse, and about 8 millimeters long. The fruit is subglobose to ellipsoid and about 4 centimeters in diameter.
== Habitat ==
''Leptocereus grantianus'' is endemic to the island of Culebra which is located just off the northeastern corner of Puerto Rico. Only one population, consisting of approximately 50 individuals, occurs along the rocky coast near Punta Melones. It is found in the subtropical dry forest life zone in dry thickets which grow on a crumbling rock substrate on a steep bank just above the shoreline. Associated species include the sea grape (''Coccoloba uvifera'') and almacigo (''Bursera simaruba'').
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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