| Collector | Larsen, K. |
| Number | 41817 |
| Collected with | S. S. Larsen, A. S. Barfod, W. Nanakorn, W. Ueachirakan & P. Sirirugsa. |
| Country | Thailand |
| Subpart | YALA |
| County | |
| Locality | Khao Pok Yok near Banang Sata |
| Coordinates | 6° 18' N 101° 17' E |
| Minimum elevation (m) | 500 |
| Maximum elevation (m) | 600 |
| Start date | 1990/11/29 |
| End date | 1990/11/29 |
| Family | Orchidaceae |
| Identification | Arundina graminifolia (D. Don)Hochr. |
| Determined by | H.AE.Pedersen, 1991 |
| Identification qualifier | |
| Field notes | "This specimen should always be cited as ""H.AE.Pedersen 41817"". Terrestrial habit. Abundant on steep slopes along a small road. Growing in open, disturbed vegetation. Ovary green. Sepals white to light violet (mid nerve always violet). Labellu" |