Dietes iridioides (L.) Sweet
Common name: Fortnight Lily
The two similar looking species of Dietes can be differentiated as under:
D. grandiflora: Plants up to 1.2 m tall, flowers 8-12 cm across, outer tepals with yellow markings, inner tepals with violet markings, style branches violet in colour.
D. iridioides: Plants up to 60 cm tall, flowers 5-8 cm across, outer tepals with yellow markings, inner tepals without markings, style branches pale violet.
D. iridioides, photographed from near Elizabeth Lake, Fremont, 9-9-2017
Dr. Gurcharan Singh
Retired Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.