It is a herbaceous plant that has semi-amplexicaules leaves, rigid, toothed, glossy and presenting on the underside, a characteristic network formed by the secondary nerves. The inflorescences are heterogamous chapters of orange-yellow color, surrounded by an involucre of imbricate bracts, coriaceous and endowed with curved spines, lustrous and covered with small lenticular incrustations of brown resin.
The flowering tops.
Not described.
Not described.
Rarely produces irritation of the gastric mucosa.
Not described.
The resinous fraction of grindelia has been found to be active, in vitro, against Diplococus pneumoniae and Bordetella pertosis.
Kreutzer S, Schimmer O, Waibel R. Institut fur Botanik und Pharmazeutische Biologie der Universitat Erlangen-Nurnberg, Federal Republic of Germany. Triterpenoid sapogenins in the genus Grindelia. [Article in German]. Planta Med. 1990 Aug;56(4):392-4. PMID: 2236296 [PubMed-indexed for MEDLINE].
Clinical studies on its composition:
Pinkas M, Didry N, Torck M, Bezanger L, Cazin JC. Phenolic components from some species of Grindelia. Ann Pharm Fr. 1978;36(3-4):97-104. PMID: 686629 [PubMed-indexed for MEDLINE].
Forliard N. Chemical composition of Grindelia herbs. J Pharm Belg. 1969 Sep-Oct;24(9):397-414. PMID: 5363670 [PubMed-indexed for MEDLINE].
Benigni, R; Capra, C; Cattorini, P. Piante Medicinali. Chimica, Farmacologia e Terapia. Milano: Inverni & Della Beffa, 1962, pp. 706-8.
Bézanger-Beauquesne, L; Pinkas, M; Torck, M. Les Plantes dans la Therapeutique Moderne. 2ª. Paris: Maloine, 1986, pp. 237-8.
Bézanger-Beauquesne, L; Pinkas, M; Torck, M; Trotin, F. Plantes Médicinales des Regions Tempérées. Paris: Maloine, 1980, pp. 400-1.
Bruneton, J. Elementos de Fitoquímica y Farmacognosia. Zaragoza: Acribia, 1991, p. 294.
Fernández, M; Nieto, A. Plantas Medicinales. Pamplona: Ediciones Universidad de Navarra, 1982, p. 92.
Paris, RR; Moyse, M. Précis de Matière Médicale. Tome III. Paris: Masson, 1971, p. 431.
Peris, JB; Stübing, G; Vanaclocha, B. Fitoterapia Aplicada. Valencia: M.I. Colegio Oficial de Farmacéuticos, 1995, p. 301.
Trease, GE; Evans, WCh. Farmacognosia. México D.F.: Interamericana--MacGraw-Hill, 1991, p. 516.
Van Hellemont, J. Compendium de Phytotherapie. Bruxelles: Association Pharmaceutique Belge, 1986, pp. 186-7.