A. Stigmas are usually large and feathery
B. Nectary is usually absent
C. The pollen grains have rough spiny surfaces
D. The flowers are not scented.
Correct Answer:
Option C – The pollen grains have rough spiny surfaces
Explanation
Wind-pollinated flowers:
- No bright colors, special odors, or nectar.
- Small.
- Most have no petals.
- Stamens and stigmas exposed to air currents.
- Large amount of pollen.
- Pollen smooth, light, easily airborne.
- Stigma feathery to catch pollen from wind.