nilagiricus,-a,-um : Nilgiri (English: Blue Mountains), India, range of mountains spread across the borders among the states of Tamil Nadu, Karnataka and Kerala.
 
1530877065 Rhododendron nilagiricum Zenker W. Curtis, Bot. Mag., vol. 74 [ser. 3, vol. 4]: t. 4381 (1848) [W.H. Fitch]
 
348676 634292 Magnolia nilagirica (Zenker) Figlar [125 664964 Michelia nilagirica Zenker] R. Wight, , Icon. Pl. Ind. Orient., vol. 3 : t. 938 (1846) [Rungia]
 
1305295 818008 Pogostemon nilagiricus Gamble R. Wight, , Icon. Pl. Ind. Orient., vol. 4 : t. 1441 (1846) [Govindoo]
 
451136 634292 Magnolia nilagirica (Zenker) Figlar [125 664964 Michelia nilagirica Zenker] R. Wight, Ill. Ind. Bot., vol. 1 : t. 5 (1840) [Rungia]
 
4297625 818008 Pogostemon nilagiricus Gamble R. Wight, Ill. Ind. Bot., vol. 2 : t. 176bis, fig. 4 (1850) [Govindoo]
 
521782 877065 Rhododendron nilagiricum Zenker L.B. Van Houtte, Fl. Serres, vol. 10 : p. 161, t. 1030 (1855) [W.H. Fitch]