Definition of palea in English:
 palea
nounPlural paleae ˈpeɪlɪəˈpālēə
Botany The upper bract of the floret of a grass.
Compare with lemma
 Example sentencesExamples
-  The lemma is inserted on the rachilla (the spikelet axis) and, together with the palea, encloses the floret.
 -  Each flower has a lemma (outer bract) and a palea (inner bract) at its base, and contains two lodicules and one pistil surrounded by three anthers.
 -  Early stages of floret development are similar in the ear and tassel: each floret is enclosed in a lemma and palea and all florets produce two lodicules, three stamens, and a gynoecium.
 -  For all studies, fresh barley grains were extracted in triplicate (after removing the glumes and paleae and keeping the pericarp - aleurone intact) and analysed in duplicate.
 -  Parts of the palea were removed to allow correct positioning and to avoid destruction of the sensor.
 
Origin
  
Mid 18th century: from Latin, literally 'chaff'.