Which plant has yellow snap-dragon-like flowers with an orange throat?

• A. Yellow Toadflax
• B. Dalmatian Toadflax
• C. Hoary Cress
• D. Perennial Pepperweed

Answer: (A)

The key clue is the flower form and color: yellow, snapdragon-like blooms with an orange throat. That combination is characteristic of Yellow Toadflax, which has bright yellow, tubular, two-lipped flowers that show a distinct orange throat. Dalmatian Toadflax is a related toadflax but generally lacks that vivid orange throat and tends to be paler with different markings. The other two plants are mustard family species with white flowers, not the snapdragon-like shape described. So the plant matching the description best is Yellow Toadflax.