The import namespace "ft" is unknown. Please ensure that OWL import details are available via MediaWiki:Smw import ft
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Example(s): Example sentences from FNA :  ribs 11–25, usually vertical, or somewhat helically curving around stem, rib crests not constricted between areoles (slightly so when desiccated ), sharp, with flat sides.  Plants unbranched, except in old age, ultimately forming dense clumps, 5–20 (–30 )cm diam., stem not obscured by spines when hydrated, obscured when desiccated.