Table 1.

Characteristics of the regions and field studies included in our review

Reg.	State	Region	Year	N	RN	UR	CI	SP	Age	Landscape	Language	Occup.	Method	Clim.	Source
RU1	Russian Federation	Ust’-Tsil’ma region of Komi Republic	2001	nk	nk	nk		2	nk	Paldual meadows, fir forests	Russian, Komi	F	nk	Dfc	[15]
RU2*	Russian Federation	Vologda	1990s	nk	nk	nk		5	nk	Shallow, decidous and conifer forests	Russian	A	nk	Dfc	[16]
RU3*	Russian Federation	St Petersburg	2000s	nk	nk	nk		6	nk	Taiga, mixed forests,	Russian	M	SB	Dfc	Exp. RU1
RU4	Russian Federation	Belgorod oblast	1926	nk	nk	nk		4	nk	Hilly meadows, decidous forests	Russian	A	nk	Dfb	[17]
ES1	Estonia	Kohla-Järve	1930	27	10	34	1.26	17	45-80	Costal line, meadows, conifer forests	Estonian	A	HA	Dfb	[18]
ES2	Estonia	Kullamaa	1930	32	17	49	1.53	14	45-80	Costal line, wooden meadows, meadows, decidous and conifer forests	Estonian	A	HA	Dfb	[18]
ES3	Estonia	Peipsi	1999-2008	46	11	31	0.67	11	61	Shore of the large lake, conifer forests	Russian	M	I, PO, SB	Dfb	[19]
ES4	Estonia	Räpina	1930	29	11	56	1.93	16	45-80	Flat inland, meadows, conifer forests,	Seto	A	HA	Dfb	[18]
UA1	Ukraine	Storozhinets region of Chernovtsy oblast’	1999-2000	nk	59	14		8	nk	Broadleaf forest, mountainous pastures, flat cornfields	Ukrainian, Romanian	A	SB	Dfb	Exp UA1
UA2	Ukraine	Strointsy, Tivriv region, Vinnitsa oblast’, Ukraine	2012	47	47	nk		29	55	Broad leaf forest, steppe	Ukrainian	A	I, SS, PO, SB	Dfb	Exp UA2
LT1	Lithuania	Užpaliai district	2010	33	33	23	0.70	16	44-90	meadows, forest	Lithuanian	M	I, SS	Dfb	[20]
BY1	Belarus	Gervėčiai ethnic region	2010	62	62	61	0.98	17	40-91	meadows, forest	Lithuanian, Russian, Belarusian	A	I, SS	Dfb	[21]
PL1	Poland	Puszcza Knyszyńska	2006-2012	89	68	248	2.79	37	65	hilly, mixed forests	Polish	A	SB	Dfb	[22]
PL2	Poland	Pogórzanie ethnogrphic region (Krosno and Jasło area), SE Poland	2010 + PO 1975-2012	133 PO	nk	nk		8	69	hilly, mixed forests	Polish	M	SB, PO	Dfb	[23,24]
RO1	Romania	Bukovina Pojana Mikuli (Poiana Mikului)	2005-2006	28	28	94	3.36	10	48	mountainous, beech forest	Polish	M	I, SS, PO, SB	Dfb	[25] + Exp RO1
BG1	Bulgaria	Chepelare community, Smoljan region	2007	nk	9	37		22	nk	mountainous mixed forest, small agricultural flatlands and meadows	Bulgarian	M	SB	Dfc	Exp BG1
BG2	Bulgaria	Laki community, Asenovgrad region	1992-1999	nk	28	9		9	nk	mountainous mixed forest, small agricultural flatlands and meadows	Bulgarian	M	SB	ET	Exp BG2
KS1	Kosovo	Gollak	2009	66	29	nk		9	>50	hilly, mixed forests	Albanian	M	SB	Dfb	[26]
KS2	Kosovo	Albanian Alps	2010	91	30	nk		12	50-79	hilly, mixed forests	Albanian	M	SB	Dfb	[27]
SE1	Serbia	Pester Plateau	2010	nk	42	nk		22	43-93 years old	pasture and meadows	Serbo-Croatian	A	SB	Cfa	[28]
IT1	Italy	Western Italian Alps	2011	81	nk	nk		8	mid-aged & elderly	mountains	Alpine Provencal & Kye	A	SB	Cfa	[29]
IT2	Italy	Vulture Alto Bradano	2000-2001	44	nk	nk		21	47-94 years old	hilly, mixed meadow & forest	Italian	M	SB	Csb	[30]
SP1	Spain	Campoo	1999-2001	107	nk	45	0.42	9	68	mosaic of meadows and forests, and high mountain vegetation	Spanish	M	SB	Cfb	[31-33]
SP2	Spain	Piloña	1999-2003	94	nk	36	0.38	9	57	mosaic of meadows and forests, and high mountain vegetation	Spanish	M	SB	Cfb	[34-36]
SP3	Spain	Gorbeialdea	2008-2010	103	2	2	0.02	1	74	mountainous: pastures mixed with Pinus radiata plantations and forests	Basque	I, S	SB	Cfb	[37]
SP4	Spain	Sierra Norte de Madrid	2003-2009	112	52	82	0.73	17	68	mountainous mixed forest agricultural valleys and pastures	Spanish	S	SB	Bsk	[38]
SP5	Spain	Sanabria	2004?	44	nk	11	0.25	5	nk	mosaic of meadows and forests, and high mountain vegetation	Spanish	nk	SB	Csb	[39]
SP6	Spain	Picos de Europa	nk	131	nk	96	0.73	6	nk	mountainous: mosaic of meadows and forests, and high mountain vegetation	Spanish	M	SB	Cfb	[31,40]
PT1	Portugal	Montesinho	2000-2004	107	nk	293	2.74	21	62	mosaic of meadows and forests and high mountain vegetation	Portuguese	M	SB	Csb	[31,34,41,42]

Abbreviations: Reg abbreviation for region, Year year of research or publication, N number of study participants, RN number of respondents reporting the use of plants as recreational tea, UR nr of use-reports for recreational teas, CI cultural importance of the category, i.e., UR/N, SP nr of species used as recreational tea, Age range or average age of respondents, Landscape landscape type, Language dominant language in the region, Occup primary occupation in the region (A agrarian, F forestry, I industry, M mixed, S service), Clim climate of the region according to the Köppen-Geiger climate classification system [43] (Bsk cold semi-arid climate, Cfa warm oceanic climate/humid subtropical climate, Cfb temperate oceanic climate, Csb temperate Mediterranean, Dfb temperate continental climate/humid continental climate, Dfc cool continental climate/subarctic climate, ET tundra climate), Method fieldwork method (HA homework assignment for schoolchildren, I interview, PO participant observation, SB snowball sampling, SS semi-structured questionnaire); nk not known, * - local plants are used as additives to oriental tea.