Short answer: the sunflower IS an angiOSperm (flowering plant).
Here is the taxomomy (classification) of a sunflower:
- Kingdom: Plantae -it is a plant
- Subkingdom: Tracheobionta - it is a vascular plant
- Superdivision: Spermatophyta - it is a seed plant
- Division: Magnoliophyts - Flowering Plants (this is the division of AngiOSperms)
- Class: Magnoliopsida - dicotyledons
- Subclass: Asteridae (aster is Latin for "star" - these flowers are star-shaped)
- Order: Asterales
- Family: Asteraceae
- Genus Helianthus (heli = sun + anthus = flower)
yes.