Elsholtzia rugulosa Hemsl.
EOL Text
* Hilly grasslands, waste areas, forests, thickets; 1300-2800 m.
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Elsholtzia rugulosa is a species of the family Lamiaceae, native to Asia, mainly Burma, Vietnam and China. E. rugulosa is known in China as a local herbal tea, medicinal herb for colds and fever, and honey plant.
Luteolin from Elsholtzia rugulosa has shown neuroprotective effects in an Alzheimer's disease cell model.[2] It contains flavonoid glycosides apigenin 4'-O-alpha-D-glucopyranoside and 5,7,3',4'-tetrahydroxy-5'-C-prenylflavone-7-O-beta-D-glucopyranoside, among several others.[3] It is active against methicillin-resistant Staphylococcus aureus.[4]Apigenin and luteolin, compounds found in the plant, may help fight influenza virus (H3N2).[5]
References[edit]
- ^ Synonyms "Elsholtzia rugulosa Hemsl., J. Linn. Soc., Bot. 26: 278 (1890)". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew. Retrieved September 24, 2011.
- ^ Rui Liu, Fanrui Meng, Li Zhang, Ailin Liu, Hailin Qin, Xi Lan, Lin Li & Guanhua Du (2011). "Luteolin isolated from the medicinal plant Elsholtzia rugulosa (Labiatae) prevents copper-mediated toxicity in β-amyloid precursor protein Swedish mutation overexpressing SH-SY5Y cells". Molecules 16 (3): 2084–2089. doi:10.3390/molecules16032084. PMID 21368720.
- ^ Gaimei She, Zhiqin Guo, Haining Lv & Dongmei She (2009). "New flavonoid glycosides from Elsholtzia rugulosa Hemsl.". Molecules 14 (10): 4190–4196. doi:10.3390/molecules14104190. PMID 19924057.
- ^ G. Y. Zuo, G. C. Wang, Y. B. Zhao, G. L. Xu, X. Y. Hao, J. Han & Q. Zhao. "Screening of Chinese medicinal plants for inhibition against clinical isolates of methicillin-resistant Staphylococcus aureus (MRSA)". Journal of Ethnopharmacology 120 (2): 287–290. doi:10.1016/j.jep.2008.08.021. PMID 18804522.
- ^ Ai-Lin Liu, Bo Liu, Hai-Lin Qin, Simon MingYuen Lee, Yi-Tao Wang, Guan-Hua Du (2008). "Anti-influenza virus activities of flavonoids from the medicinal plant Elsholtzia rugulosa". Planta Medica 74 (8): 847–851. doi:10.1055/s-2008-1074558. PMID 18553272.
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Used medicinally.
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Guangxi, Guizhou, Sichuan, Yunnan
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Herbs to subshrubs. Stems 30-150 cm tall, much branched, branches densely white puberulent. Petiole 0.5-2.5 cm; leaf blade elliptic to rhombic-ovate, 2-7.5 × 1-3.5 cm, papery, adaxially hispid, rugulose, abaxially gray tomentose, base rounded to broadly cuneate, margin obtusely serrate with entire base, apex acute to slightly obtuse; lateral veins 4-6 paired, prominent abaxially. Spikes terminal 3-12 cm or more, mostly white tomentose; verticillasters pedunculate, dense at spike apex, lax at base; peduncle 1.2-2.5 cm; upper bracts lanceolate to subulate, 1-3 mm, margin entire. Pedicel less than 1 mm. Calyx campanulate, ca. 1.5 × 1 mm, white hispid; teeth equal or posterior 2 longer, ca. 0.7 mm. Corolla white, sometimes purple or yellowish, ca. 4 mm, villous outside, obliquely hairy annulate inside, tube ca. 3 mm, ca. 1.5 mm wide at throat; upper lip less than 1 mm, apex emarginate; middle lobe of lower lip circular, ca. 1 × 1 mm, margin erose; lateral lobes semicircular. Anterior stamens exserted; filaments slightly hairy. Nutlets yellowish, oblong, slightly flattened, ca. 1 mm, smooth. Fl. and fr. Oct-Dec.
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Aphanochilus rugulosus (Hemsley) Kudo; Elsholtzia labordei Vaniot; E. mairei H. Léveillé; Plectranthus labordei (Vaniot) Diels.
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