Strobilanthes phengklaii Kladwong & Chantar. A stem, leaves and inflorescences B adaxial surface of leaf (B1) and abaxial surface of leaf (B2) C outer surface of bract (C1) and inner surface of bract (C2) D outer surface of bracteole (D1) and inner surface of bracteole (D2) E calyx F corolla, stamens and rugula and trichomes retaining the style (arrow) G pistil, style and stigma H ovary I fruit J seed. A–H drawn from Phengklai et al. 12261 (BKF: holotype), I–J drawn from Tagawa et al. 1076 (BKF). Drawn by K. Tuanku.

 
 
  Part of: Kladwong P, Chantaranothai P (2024) Notes on Strobilanthes (Acanthaceae) with capitate inflorescences in Thailand. PhytoKeys 244: 89-126. https://doi.org/10.3897/phytokeys.244.124260