Assertion: sunflower's flower head | /r/CapableOf | produce single row of petals
Facets:
value: with clearly visible central disk
type: OTHER
Source sentences:
text: Flower heads of some zinnia produce single row of petals (with clearly visible central disk), while other have semi-double (many rows of petals with visible central disk) and double rows of petals (numerous rows of petals that completely cover central disk).