 |
| Parakaempferia alba Tatum, D.Koch, B.Hajong & P.Bharali, in Mibang, Hajong, Koch et Bharali. 2026. |
Abstract
Parakaempferia alba, a new species of Zingiberaceae from East Siang district of Arunachal Pradesh, India is herein described. A detailed taxonomic description, diagnosis, color photoplate, distribution map, notes on habitat and ecology, conservation status, and a table of comparisons with the closely related species Parakaempferai synantha Rao & Verma are provided. This new species differs, inter alia, from P. synantha by its leaf characters, number of spikes, length of peduncle, number of bracts as well as their shape and size, bracteole shape and size, staminode shape and color, labellum shape and color of apical margin, anther size and color, filament size, style size, ovary shape, and by presence of two linear shaped glands attached to the ovary.
Keywords: Eastern Himalaya, new taxon, Parakaempferia, Siang Valley
 |
| Parakaempferia alba sp. nov. habit to the right. To the left, the red dot indicate the type location of Parakaempferia alba sp. nov. in Miglung area of East Siang District of Arunachal Pradesh, India. Black dots indicate the distribution of P. synantha in type location (North Lakhimpur, Assam) as well as in Murlen National Park, Champhai, Mizoram (Kumaret al. 2013). |
 |
| Parakaempferia alba sp. nov. (A) Habit, (B) base of stem with immature inflorescence, (C) inflorescence, (D) flower, (E) side view of a flower with bract (bt), bracteole (bl) and calyx (cx), (F) petal (md- medial, lt- lateral), (G) labellum with stamen (st), (H) staminode, (I) pistil with 2 glands (gn). |
Parakaempferia alba Tatum, D.Koch, B.Hajong, P.Bharali sp. nov.
Tatum Mibang, Bipankar Hajong, Devpratim Koch and Pankaj Bharali. 2026. Parakaempferia alba sp. nov. (Zingiberaceae), A New Species from Arunachal Pradesh, India. Nordic Journal of Botany. DOI: doi.org/10.1002/njb.05030 [14 January 2026]