(of a nectary) situated outside a flower, especially on a leaf or stem.
〔植〕（蜜腺）花外的（尤指在叶或茎上）
Example sentencesExamples
The calyx, the subtending bracts and the two prophylls bear groups of extrafloral nectaries (single peltate trichomes).
But also, a small beetle was observed on a single occasion feeding on nectar from the underneath of the mesochile where a nectar drop is usually found (a possible extrafloral nectary).
In addition, extrafloral nectar and nectaries are widespread in Ipomoea in petioles and/or in epals that are mostly visited by ants and serve as a herbivore defence mechanism.
This group is morphologically characterized by boat-shaped extrafloral nectar cups and a long inflorescence axis exhibiting a more racemose arrangement of the flowers.
Definition of extrafloral in US English:
extrafloral
adjectiveˌekstrəˈflôrəl
Botany
(of a nectary) situated outside a flower, especially on a leaf or stem.
〔植〕（蜜腺）花外的（尤指在叶或茎上）
Example sentencesExamples
The calyx, the subtending bracts and the two prophylls bear groups of extrafloral nectaries (single peltate trichomes).
In addition, extrafloral nectar and nectaries are widespread in Ipomoea in petioles and/or in epals that are mostly visited by ants and serve as a herbivore defence mechanism.
But also, a small beetle was observed on a single occasion feeding on nectar from the underneath of the mesochile where a nectar drop is usually found (a possible extrafloral nectary).
This group is morphologically characterized by boat-shaped extrafloral nectar cups and a long inflorescence axis exhibiting a more racemose arrangement of the flowers.