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APPW key feature pages

Leaf attachment to stem

Amplexicauline amplexicauline:
(adj) (of leaf bases) clasping the stem
leaves have bases clasping the stem, while with perfoliateperfoliate:
(adj) (of leaves) with base or margins completely surrounding stem
leaves, the stem appears to pass through the leaf. A sheathing leaf has a broad base or petiolepetiole:
(n) the stalk of a leaf
that surrounds the stem (sometimes completely) or may overlap other leaf bases or petioles. Note that leaves may be sheathing even if a stem is compact and not visible (not illustrated below).

leaves amplexicauline or perfoliate  
leaves amplexicauline or perfoliate
leaf bases or petioles sheathing the stem  
leaf bases or petioles sheathing the stem
leaf attachment otherwise (with or without petiole)  
leaf attachment otherwise (with or without petiole)
APPW key feature pages