18 June 1990.
Indonesia
Locality: North Sumatra Rantauprapat Cayabaru, Marbau Simpang Empat
Coordinates: North Sumatra Rantauprapat Cayabaru, Marbau Simpang Empat2.5000, 99.9167
(Map it)
Elevation: 30m.
District: Rantauprapat;
Drainage: Poor;
Freq: Occasional;
Fund: Irri;
Herb: Yes;
Lang_Var: Indonesian;
Prov: North Sumatra;
Rem_Other: Few Plants In Roadsite Ditch 1-2 Km From Previous Site;
Samp_Method: Random;
Seed_File: Yes;
Site: Depression;
Soil_Text: Clay;
Topo: Plain Level;
Deg_Graze: No Grazing;
Deg_Introg: No Introgression;
Dist_To_Sat: Far(Not Easily Accessible Fr.Collecting Site);
Grlt: 4.7;
Growth_Stage: Flowering;
Grth: 1.3;
Grwd: 2.2;
Pop_Fert: W/ Sterile Spikelets But Most Are Fertile Seeds (20-40%);
Pop_Size: 10;
Shade: Open;
Spp_Diver: Bet. 5-10 Plants/Spp.(Young Sec. Forest);
Water_Depth: 0