| Collector | Larsen, K. |
| Number | 41048 |
| Collected with | S. S. Larsen, A. S. Barfod, W. Nanakorn, W. Ueachirakan and P. Sirirugsa |
| Country | Thailand |
| Subpart | SONGKHLA |
| County | |
| Locality | Ton Nga Chang waterfall, 20 km W of Hat Yai |
| Coordinates | 7° 0' N 100° 10' E |
| Minimum elevation (m) | 100 |
| Maximum elevation (m) | 250 |
| Start date | 1990/11/01 |
| End date | 1990/11/01 |
| Family | Orchidaceae |
| Identification | Arundina graminifolia (D. Don)Hochr. |
| Determined by | H.AE.Pedersen, l99l |
| Identification qualifier | |
| Field notes | "This specimen should always be cited as ""H.AE.Pedersen 41048"". Terrestrial habit. Growing among rocks by the waterfall. Ovary green. Sepals, petals, and side lobes of labellum white. Mid lobe of labellum light to dark purple. Labellum with a " |
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