| Ponerorchis graminifolia, var micropunctata photo C. Solimbergo |
| taxonomy | described by | Reichenbach, Heinrich Gustav |
| published in | Linnaea 25 : 228 1852 | |
| var. micropunctata | described by | Maekawa F. |
| family | Orchidaceae | |
| subfamily | Orchidoideae | |
| tribe | Orchideae | |
| subtribe | Orchidinae | |
| genus | Ponenorchis Reichenbach f. 1852 | |
| chromosomes | 2n = 40 | |
| metabolism | C3 pathway, stomata of the leaves are open during the day. | |
| (K.Silvera, L.S. Santiago, J.C. Cushman, K. Winter - International Symposium on Plant Biology, August 2013) | ||
| soluble mineral nutriens are effective both, foliar or on the roots. | ||
| native of | origins | in Japan, on mountane rocks (Kyushu) |
| rare specie in the wild | ||
| altitude | 400 - 600 m (1320 - 2640 ft) | |
| habitat | climate informations from Miyazaki (Kyushu, Japan) | |
| Köppen climate classification : Cfa, humid subtropical climate in all seasons, with very hot summers | ||
| the weather station data (temperatures are calculated for an altitude of 600 m / 1980 ft) : | ||
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| photoperiod | in Miyazaki this orchid bloom with a photoperiod, that varies during the year, from 14 h 06 m' to 9 h 54 m' | |
| life form | litophyte | |
| brightness | sunny, but not the sun | |
| inflorescence | length | 10 - 12 cm (4" - 4.8") |
| nr flowers | 12 - 16 | |
| size | single flower 1,5 L 1,5 cm (0.6" L 0.6") - inflorescence 10 L 4 cm (4" L 1.6") | |
| duration | ≈ 60 days | |
| time | to bloom from birth, ~ 50 days | |
| CITES | appendix | II |
