Assertion: angiosperm's structure | /r/AtLocation | the base of the stamens
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Small secretory structures called nectaries are often found at the base of the stamens and provide food rewards for pollinators.
text: Small secretory structures called nectaries are often found at the base of the stamens and provide food rewards for pollinators.
text: Small secretory structures, called nectaries, are often found at the base of the stamens; they provide food rewards for insect and bird pollinators.