| Leuconotis griffithii (IPNI:79773-1) | bark (BTO:0001301) | PubMed (23647487) | Isolated from stem bark. |
| Kopsia jasminiflora (IPNI:79503-1) | bark (BTO:0001301) | Article (Kitajima, M., Anbe, M., Kogure, N., Wongseripipatana, S. and Takayama, H. (2014) Indole alkaloids from Kopsia jasminiflora. Tetrahedron, 70(47), 9099-9106.) | Isolated from stem bark. |
| Rhazya stricta (ncbitaxon:396313) | - | PubMed (26694342) | Isolated from hairy root culture. |
| Alstonia rostrata (ncbitaxon:1679253) | bark (BTO:0001301) | PubMed (26125941) | |
| Kopsia pauciflora (ncbitaxon:1037435) | bark (BTO:0001301) | PubMed (26717050) | Isolated from stem bark |
| Mappianthus iodoides (ncbitaxon:210342) | stem (BTO:0001300) | PubMed (29101786) | |
| Uncaria (ncbitaxon:43574) | - | Article (Chan, K.C. (1969) The stereochemistry of pteropodine and isopteropodine. Phytochemistry, 8(1), 219-222.) | Isolated from unknown Uncaria species. |
| Rauvolfia obscura (IPNI:81602-1) | stem (BTO:0001300) | Article (Timmins, P. and Court, W.E. (1976) Stem alkaloids of Rauwolfia obscura. Phytochemistry, 15(5), 733-735.) | |
| Amsonia elliptica (ncbitaxon:403098) | seed (PO:0009010) | Article (Aimi, N., Asada, Y., Sakai, S.I. and Haginiwa, J. (1978) Studies on plants containing indole alkaloids. VII. Isolation of several aspidosperma-and vincamine-type alkaloids from the seeds of Amsonia elliptica ROEM. et SCHULT. Chem. Pharm. Bull., 26(4), 1182-1187.) | |
| Rauvolfia volkensi (IPNI:81672-1) |
| bark (BTO:0001301) | Article (Akinloye, B.A. and Court, W.E. (1979) Stem bark alkaloids of Rauwolfia volkensii. Planta Medica, 37(12), 361-366.) | Isolated from stem bark. |
| leaf (BTO:0000713) | Article (Akinloye, B.A. and Court, W.E. (1980) Leaf alkaloids of Rauwolfia volkensii. Phytochemistry, 19(2), 307-311.) | |
| Uncaria attenuata (ncbitaxon:1840405) | leaf (BTO:0000713) | Article (Ponglux, D., Supavita, T., Verpoorte, R. and Phillipson, D. (1980) Alkaloids of Uncaria attenuata from Thailand. Phytochemistry, 19(9), 2013-2016.) | |
| Rauvolfia vomitoria (IPNI:81673-1) | leaf (BTO:0000713) | Article (Amer, M.M. and Court, W.E. (1980) Leaf alkaloids of Rauwolfia vomitoria. Phytochemistry, 19(8), 1833-1836.) | |
| Alstonia undulata (IPNI:76601-1) | bark (BTO:0001301) | Article (Guillaume, D., Morfaux, A.M., Richard, B., Massiot, G., Olivier, L.L.M., Pusset, J. and Sévenet, T. (1984) Some alkaloids of Alstonia undulata. Phytochemistry, 23(10), 2407-2408.) | Isolated from root bark. |
| Amsonia brevifolia (IPNI:30100631-2) | whole plant (BTO:0001461) | Article (Sharma, P., Shirataki, Y. and Cordell, G.A. (1988) Alkaloids of Amsonia brevifolia. Phytochemistry, 27(11), 3649-3652.) | |
| Kopsia griffithii (ncbitaxon:1750996) | leaf (BTO:0000713) | Article (Kam, T.S. and Sim, K.M. (1998) Alkaloids from Kopsia griffithii. Phytochemistry, 47(1), 145-147.) | |
| Kopsia dasyrachis (IPNI:79494-1) | stem (BTO:0001300) | Article (Kam, T.S., Subramaniam, G. and Chen, W. (1999) Alkaloids from Kopsia dasyrachis. Phytochemistry, 51(1), 159-169.) | |
| Catharanthus roseus (ncbitaxon:4058) | cell suspension culture (BTO:0000221) | Article (Kohl, W., Witte, B. and Hofle, G. (1981) Alkaloide aus Catharanthus roseus-Zellkulturen, II / Alkaloids from Catharanthus roseus Tissue Cultures, II, Z. Naturforsch., 86b, 1153-1162.) | |
| Kopsia singapurensis (ncbitaxon:1751000) | bark (BTO:0001301) | PubMed (17939738) | Isolated from stem bark. |
| Kopsia arborea (IPNI:79490-1) | bark (BTO:0001301) | PubMed (17665953) | Isolated from stem bark. |
