Ray's Thought for the Day - Rocket Salad (Eruca sativa)

Yesterday, after I procured my delicious cinnamon bun, I happened to espy a plant unknown to me. Help me, help me I cried. Soon another Druid arrived who recognized the strange new plant and came very close to recalling its name. Later this new plant was pronounced to be none other than rocket salad (Eruca sativa). Here is a picture of its flowers.

Research reveals that rocket salad originated in Mediterranean parts, but is now enjoyed in west Texas, Mexico and now, these parts. Is this an example of balance? One mustard disappears (Streptanthus bracteatus) and another one turns up. Maybe, maybe not.