带领乌头 dai ling wu tou

Aconitum kusnezoffii Reichenbach subsp. birobidshanicum (Voroschilov) Luferov; A. kusnezoffii var. birobidshanicum (Voroschilov) S. X. Li; A. pulcherrimum Nakai subsp. birobidshanicum (Voroschilov) Voroschilov.

Caudex conical, 2.5--4 cm, to 1 cm in diam. Stem 60--120 cm, branched, glabrous. Proximal cauline leaves long petiolate, withered at anthesis; petiole 2.5--5 cm, glabrous; leaf blade 5--10 × 5.5--12 cm, abaxially glabrous, adaxially sparsely retrorse pubescent, 3-sect; central segment rhombic, apex acuminate, pinnately divided; lateral segments obliquely flabellate, unequally 2-parted. Inflorescence several flowered; rachis and pedicels glabrous; bracts leaflike. Pedicels 2--7.5 cm, with 2 bracteoles at middle or above; bracteoles narrowly obovate, spatulate, or linear, 3.5--5.5 × 1.5--3 mm. Sepals blue-purple, abaxially glabrous; lower sepals 0.6--1.1 cm; lateral sepals 0.9--1.5 cm; upper sepal high galeate, 1.4--2.4 cm high, 1--1.6 cm from base to beak, lower margin concave. Petals glabrous; limb 7--12 × 3--4 mm; lip 3.5--4 mm, slightly concave; spur slightly circinate, ca. 3 mm. Stamens glabrous; filaments entire. Carpels 5, glabrous. Follicles ca. 1.6 cm. Seeds ca. 2 mm. Fl. Jul--Aug.

Grassy slopes, Betula forest margins. Heilongjiang [Mongolia, Russia (Far East)].

Alexander N. Luferov (pers. comm.) believes that this taxon is conspecific with Aconitum kusnezoffii .