Often glandular. Often involved in movement of a plant structure in response to touch, gravity or light. In panicoid grasses a swollen region in the stem above the intercalary meristem. Such a definition would also include stems of Chloranthaceae, Acanthaceae, Caryophyllaceae, Amaranthaceae, etc. [source: APweb:Glossary].

Often glandular. Often involved in movement of a plant structure in response to touch, gravity or light. In panicoid grasses a swollen region in the stem above the intercalary meristem. Such a definition would also include stems of Chloranthaceae, Acanthaceae, Caryophyllaceae, Amaranthaceae, etc. [source: APweb:Glossary].

PATO:0000586

PO_GIT:81

PO_GIT:70

A cardinal organ part (PO:0025001) at the apex or base of a petiole, petiolule, leaf sheath, or branch that is differentiated from the remaining organ parts by its enlarged cross section.

PO:0009000

葉枕 (Japanese, exact)

pulvínulo (Spanish, exact)

pulvini (exact, plural)

plant_anatomy

PO:0009000

pulvinus