Aconitum, Linnaeus, 1753

Singh, Harsh, Pradhan, Aditya, Adhikari, Dibyendu, Chettri, Arun & Barik, Saroj Kanta, 2021, A new species of Aconitum (Ranunculaceae) from Indian Eastern Himalayan state of Sikkim, Phytotaxa 484 (2), pp. 207-216 : 213-214

Key to the Aconitum L. from Sikkim

1a. Plant scandent or twining ..................................................................................................................................................... A. elwesii

1b. Plant erect .........................................................................................................................................................................................2.

2a. Pedicels pilose; lower sepal obliquely narrow- elliptic; staminal teeth not prominent..................................................... A. spicatum

2b. Pedicels hairy; lower sepal broadly elliptic; staminal teeth prominent................................................................................. A. arunii

3a. Stem 1 m high ..................................................................................................................................................................................4

3b. Plant less than 1 m high. ................................................................................................................................................................... 5 4a. Filaments glabrous; carpels glabrous ..................................................................................................................................... A. bisma

4b. Filaments hairy; carpels pubescent.......................................................................................................................................... A. ferox

5a. Petals densely hairy; lip spathulate................................................................................................................................ A. sikkimensis

5b. Petal glabrous; lip obovate or slightly concav....................................................................................................................................6

6a. Pedicel retrorse pubescent; lateral orbicular-obovate, scarcely clawed, margins wavy................................................. A. naviculare

6b. Pedicel spreadingly pubescent; obliquely orbicular-cordate, margins not wavy ................................................................ A. hookeri

7a. Sepals bluish-white or blue; Follicles 4-5 ............................................................................................................. A. heterophylloides

7b. Sepals reddish-purple or red; Follicles 3 ........................................................................................................................ A. laciniatum

8a. Upper sepal broadly hemi-elliptic in profile with dome-like base, carpel 3 ............................................................... A. novoluridum

8b. Upper sepal navicular in profile with rounded base, carpel 5 ......................................................................................... A. dissectum