Fennel

The raw bulb/base of the leaves is a decent source of Niacin, Calcium, Iron, Magnesium, Phosphorus and Copper, and a very good source of Fiber, Vitamin C, Folate, Potassium and Manganese. Moderate amount of oxalic acid. Pretty tasty too

The seeds are good source of Phosphorus, Potassium and Copper, some Omega-6 fatty acids, and provide lots of Fiber, Calcium, Iron, Magnesium and Manganese. In terms of calcium to phosphorous ratio, the seeds (ground) are the better choice, if your bugs will eat them.

In 100 grams (about 17 tbsp) of seeds:

1196 mg Calcium
18.54 mg Iron
385 mg Magnesium
487 mg Phosphorus
1694 mg Potassium
88 mg Sodium
3.7 mg Zinc

1.067 mg Copper

6.533 mg Manganese

21 mg Vitamin C (ascorbic acid)
0.408 mg Thiamin

0.353 mg Riboflavin

6.05 mg Niacin

0.47 mg Vitamin B-6

0.253 g Tryptophan

0.602 g Threonine
0.695 g Isoleucine

0.996 g Leucine

0.758 g Lysine

0.301 g Methionine

0.222 g Cystine

0.647 g Phenylalanine

0.41 g Tyrosine

0.915 g Valine

0.68 g Arginine

0.331 g Histidine

0.789 g Alanine

1.833 g Aspartic acid

2.956 g Glutamic acid

1.107 g Glycine

0.9 g Proline

0.9 g Serine