Botanical Information Sigesbeckia orientalis L. (procuring samples)
| Synonyms | Minyranthes heterophylla Turcz. |
| Sigesbeckia brachiata Roxb. | |
| Sigesbeckia caspia Fisch. & C.A.Mey. | |
| Sigesbeckia esquirolii H.Lév. & Vaniot Repert. | |
| Sigesbeckia gracilis DC. | |
| Sigesbeckia humilis Koidz. | |
| Sigesbeckia iberica Willd. | |
| Sigesbeckia microcephala DC. | |
| Sigesbeckia orientalis f. angustifolia Makino | |
| Sigesbeckia orientalis var. tenggerensis Hochr. | |
| Common name (en) | Common St. Paul's wort |
| Common name (fr) | Herbe Saint Paul |
| Common name (vi) | Hy thiêm |
| Common name (zh) | 豨莶 |
| Sample preparation | Ultrasonicate 1 g of the powder with 10 mL of methanol for 15 min, filter, use the filtrate as the test solution |
| Mobile phase | Chloroform, methanol 4:1 (v/v) |
| Derivatization | Spray with 5% vanillin, heat span style="color:red">until the spots appear |