Listing 1 - 2 from 2 for columnar stem
Aztekium hintonii
... . An extremely slow growing but extraordinary plant. A. hintonii have greyish-green stem, globular to subglobose (rarely short columnar) reaching 20 cm by 10 cm in size with alternating main and secondary ...
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Echinocereus poselgeri
... columnar cactus genus) ( The genus name implies: "spiny cereus"). The species name "poselgeri" derives from..... Morphology (Identifying Characteristics): Habit: Shrubby, scarcely branched, initially erect, later sprawling or clambering. Stem ... ; 8-15 straight radials 4,5mm long,closely appressed (except at the stem tip) Roots: tuberlike, Contrarily to E. kroenleinii, the underground storage organ ...
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