Flowering from July to September.
Delphinium gyalanum is close relative of Delphinium micropetalum, but differs from the latter in its bracteoles more than 0.5 mm from flowers (vs. ca. 0.5 mm from flowers).
Delphinium gyalanum is occurring in Xizang of China.
Stem 0.5-1.1 m tall, sparsely puberulent, branched, rarely simple. Leaf blade 9-22 cm wide, base cordate; primary lobes separate for at least 2/3 of blade radius; central lobe rhombic, 3-cleft, distally unequally few lobulate and dentate, apex acute; ultimate lobules linear to narrowly lanceolate; proximal leaves usually withered. Raceme 20-35 cm tall, many-flowered, yellow glandular puberulent and retrorsely puberulent; proximal bracts leaflike or 3-parted, distal ones linear. Pedicels 2.5-8.5 cm long; bracteoles distal, narrowly lanceolate, 7-10 mm wide. Sepals blue-purple, abaxially puberulent and glandular puberulent; spur subulate, conic-subulate, or subcylindric, 1.2-1.8 cm long, base 3-4.5 mm in diameter; other sepals 1.3-1.5 cm long. Petals emarginate, glabrous. Staminode limb ovate, 2-lobed, yellow barbate. Filaments pilose. Carpels 3; ovaries puberulent.
Growing in scrub, grassy slopes; 3000-4500 m.
