Stems 35-70 cm. Flowers: sepals blue to purple, 13-20 × 5-11 mm; spurs 11-17 mm. 2 n = 16. Flowering spring. Meadows, open woodlands; 0-1000 m; B.C.; Oreg., Wash. Delphinium menziesii subsp. menziesii hybridizes with D . trolliifolium and D . nuttallii .