Category: S

Opposite of hollow; Free from cavities. Not soft or yielding. Hard and not liquid.  

A type of stele with a central core (of pith) surrounded by rings of phloem, xylem and phloem again (= amphiploic siphonostele); A type of siphonostele with leaf gaps not very large and not overlapping. A vascular system with a central core surrounded by rings of phloem, xylem and another ring of phloem.  

Slipper-shaped or almost like an hourglass, i.e. two ovals joined by a narrower part [obscure term].  

Wood from conifers.  

Producing shoots from ground level, clump-forming; usually applied to shrubs or small trees.    

An underground vegetative shoot with roots at intervals, a creeping underground stem producing roots and buds; sobole is the preferred spelling.  

From the Latin sine numero, meaning ‘without a number’.  

Opposite of rough; Opposite to hairy [unusual now but common in older publications]. Not rough, some writers have employed this term incorrectly to mean glabrous. In reference to a leaf margin; not toothed or divided (entire). Flat, not rough.    

Long and thin.  

(Colour) blue-grey.