Dietes grandiflora N E Br.
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.
Here is D. grandiflora photographed from Fremont, California.
Dr. Gurcharan Singh
Retired Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.