Impatiens pseudocitrina, Hareesh, M. Sabu & Gogoi, 2016

Hareesh, Vadakkoot Sankaran, Gogoi, Rajib & Sabu, Mamiyil, 2016, Impatiens pseudocitrina (Balsaminaceae), a new species from Arunachal Pradesh, Northeast India, Phytotaxa 282 (3), pp. 231-234 : 233

Key to the closely related species of I. pseudocitrina

1. Lower sepal saccate or elongate-bucciniform....................................................................................................................................2

- Lower sepal navicular.........................................................................................................................................................................3

2. Inflorescence 3–14-flowered, peduncle longer than leaves, flowers orange, lateral sepals falcate with horn at apex, distal lobe of lateral united petals lorate, spur in lower sepal predominantly hooked ............................................................................. I. principis

- Inflorescence 2 (rarely 3)-flowered, peduncle shorter than leaves, flowers yellow, lateral sepals orbicular without horn at apex, distal lobe of lateral united petals dolabriform, spur in lower sepal upright.............................................................. I. pseudocitrina

3. Leaves 12–26 cm long, bracts ovate, ca. 10 × 5 mm, lateral veins 10–16 pairs, lateral united petals with a prominent red blotch, capsule linear..................................................................................................................................................................... I. lohitensis

- Leaves <12 cm long, bracts obliquely ovate, ca. 6 × 4 mm, lateral veins <8 pairs, lateral united petals without a prominent red blotch, capsule clavate........................................................................................................................................................................4

4. Apex of lateral sepals acute, lower sepal pure yellow or white, lateral united petals yellow ................................................ I. citrina

- Apex of lateral sepals with long horn or appendix, lower sepal with reddish markings, lateral united petals with red dots .............. .................................................................................................................................................................................... I. drepanophora