Step 1: Recall scientific classification.
Each crop has a unique botanical name that helps in proper identification. Step 2: Listing the names.
- Tomato belongs to the Solanaceae family (\textit{Solanum lycopersicum}).
- Cauliflower belongs to the Brassicaceae family (\textit{Brassica oleracea var. botrytis}).
- Bottle gourd is from the Cucurbitaceae family (\textit{Lagenaria siceraria}).
- Okra is from the Malvaceae family (\textit{Abelmoschus esculentus}). Step 3: Conclusion.
Thus, the correct botanical names are as listed.