1/2 cucumber, peeled, quartered lengthwise, and thinly sliced
1/2 small red onion, minced
1 jalapeno chile pepper, ribs and seeds removed, minced
1 can (15 ounces) hearts of palm, drained and thinly sliced
1/4 cup fresh orange juice
2 tablespoons red-wine vinegar
Coarse salt and ground pepper
1 pound medium shrimp, peeled and deveined (tails removed)
1 teaspoon ground cumin
1/2 teaspoon ground coriander
1/4 teaspoon dried oregano
4 teaspoons olive oil