Tuberaria lignosa

Plate 1 figs. a–h · 8 separate observations

Tuberaria lignosa, photographed by Davide Puddu — fig. b Davide Puddu, CC BY 4.0 / obs. 185278892

Tuberaria lignosa, photographed by Duarte Frade — fig. c Duarte Frade, CC BY 4.0 / obs. 155101328

Tuberaria lignosa, photographed by Carminda Santos — fig. e Carminda Santos, CC BY 4.0 / obs. 80306090

Tuberaria lignosa, photographed by Josep Gesti — fig. f Josep Gesti, CC BY-SA 4.0 / obs. 73797204

Tuberaria lignosa, photographed by Andre Hosper — fig. g Andre Hosper, CC BY 4.0 / obs. 18270483

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 12 botanical countries

Native distribution of Tuberaria lignosa, 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
Baleares	BAL	EUROPE
Corse	COR
France	FRA
Italy	ITA
Portugal	POR
Sardegna	SAR
Sicilia	SIC
Spain	SPA
Algeria	ALG	AFRICA
Canary Is.	CNY
Morocco	MOR
Tunisia	TUN

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 53 in flower of 97 examined

18%

83%

75%

90%

70%

14%

Proportion of examined Tuberaria lignosa in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	2	11	18%	5% to 48%
Feb	2	4	too few examined
Mar	5	6	83%	44% to 97%
Apr	18	24	75%	55% to 88%
May	18	20	90%	70% to 97%
Jun	7	10	70%	40% to 89%
Jul	0	3	too few examined
Aug	0	2	too few examined
Sep	0	5	0%	0% to 43%
Oct	0	2	too few examined
Nov	0	3	too few examined
Dec	1	7	14%	3% to 51%

Peak flowering in May. Each bar is the share of Tuberaria lignosa 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. 53 of 97 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 5 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.

Also published as 28 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.

Cistus nervosus Lam.
Cistus plantaginifolius Salisb.
Cistus tuberaria L.
Diatelia tuberaria (L.) Demoly
Helianthemon tuberarium St.-Lag.
Helianthemum lignosum Sweet
Helianthemum tuberaria (L.) Mill.
Helianthemum tuberaria var. alpestre (Willk.) Amo
Helianthemum tuberaria var. glabrum Texidor
Helianthemum tuberaria var. lanatum (Willk.) Amo
Helianthemum tuberaria var. suffruticosum (Willk.) Amo
Helianthemum tuberaria var. trisepalum Texidor
Tuberaria melastomatifolia Grosser
Tuberaria melastomifolia var. alpestris (Willk.) Grosser
Tuberaria melastomifolia var. lanata (Willk.) Grosser
Tuberaria melastomifolia var. suffruticosa (Willk.) Grosser
Tuberaria melastomifolia var. trivialis Grosser
Tuberaria nervosa (Lam.) C.Vicioso
Tuberaria perennis var. lanata (Willk.) Briq.
Tuberaria perennis var. melastomifolia Spach
Tuberaria vulgaris Willk.
Tuberaria vulgaris f. alpestris (Willk.) Guinea
Tuberaria vulgaris f. lanata (Willk.) Guinea
Tuberaria vulgaris f. sufruticosa (Willk.) Guinea

and 4 more.

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.