Convolvulus lineatus

Plate 1 figs. a–h · 8 separate observations

Convolvulus lineatus, photographed by Елена Патерикина — fig. b Елена Патерикина, CC BY 4.0 / obs. 144622108

Convolvulus lineatus, photographed by castieler — fig. c castieler, CC BY 4.0 / obs. 129668418

Convolvulus lineatus, photographed by Yves Bas — fig. d Yves Bas, CC BY 4.0 / obs. 129098223

Convolvulus lineatus, photographed by Galyna Mykytynets — fig. e Galyna Mykytynets, CC BY 4.0 / obs. 118033602

Convolvulus lineatus, photographed by Guillermo Huerta Ramos — fig. h Guillermo Huerta Ramos, CC BY 4.0 / obs. 72665273

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 40 botanical countries

Native distribution of Convolvulus lineatus, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.

Region	TDWG code	Continent
Afghanistan	AFG	ASIA-TEMPERATE
Altay	ALT
Cyprus	CYP
East Aegean Is.	EAI
Iran	IRN
Kazakhstan	KAZ
Kirgizstan	KGZ
Lebanon-Syria	LBS
Mongolia	MON
North Caucasus	NCS
Palestine	PAL
Tadzhikistan	TZK
Transcaucasus	TCS
Türkiye	TUR
Turkmenistan	TKM
Uzbekistan	UZB
Xinjiang	CHX
Albania	ALB	EUROPE
Baleares	BAL
Belarus	BLR
Bulgaria	BUL
Central European Russia	RUC
Corse	COR
East European Russia	RUE
France	FRA
Greece	GRC
Italy	ITA
Krym	KRY
Portugal	POR
Romania	ROM
Sicilia	SIC
South European Russia	RUS
Spain	SPA
Ukraine	UKR
Algeria	ALG	AFRICA
Egypt	EGY
Libya	LBY
Morocco	MOR
Tunisia	TUN
Pakistan	PAK	ASIA-TROPICAL

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 158 in flower of 193 examined

83%

64%

75%

93%

88%

57%

Proportion of examined Convolvulus lineatus in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	0	0	too few examined
Feb	5	6	83%	44% to 97%
Mar	7	11	64%	35% to 85%
Apr	21	28	75%	57% to 87%
May	86	92	93%	86% to 97%
Jun	30	34	88%	73% to 95%
Jul	8	14	57%	33% to 79%
Aug	0	0	too few examined
Sep	0	2	too few examined
Oct	1	1	too few examined
Nov	0	3	too few examined
Dec	0	2	too few examined

Peak flowering in May. Each bar is the share of Convolvulus lineatus observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 158 of 193 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 6 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Where it actually grows measured, from 802 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	-9.9 °C	0.0 °C	11.7 °C
Warmest month, mean daily high	23.7 °C	27.7 °C	32.5 °C
Annual rainfall	351 mm	520 mm	847 mm
Rainfall in the driest quarter	8 mm	74 mm	127 mm

It is found where winters bring hard frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 802 research-grade observations of Convolvulus lineatus that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 7 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

Convolvulus besseri Spreng.
Convolvulus gerardii Roem. & Schult.
Convolvulus intermedius Loisel.
Convolvulus nitens K.Koch
Convolvulus spicaefolius Desr.
Convolvulus spicifolius Desr.
Convolvulus tshegemensis Galushko

Sourcesevery claim on this page

World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.