Tuberaria lignosa

Tuberaria lignosa is a species of perennial rock-rose native to the western Mediterranean region.

Tuberaria lignosa
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Cistaceae
Genus: Tuberaria
Species:
T. lignosa
Binomial name
Tuberaria lignosa
Synonyms [1]
  • Cistus nervosus Lam.
  • Cistus plantaginifolius Salisb.
  • Cistus tuberaria L.
  • Helianthemon tuberarium St.-Lag.
  • Helianthemum lignosum Sweet
  • Helianthemum tuberaria (L.) Mill.
  • Tuberaria melastomatifolia Grosser
  • Tuberaria vulgaris Willk.
  • Xolantha tuberaria (L.) M.J.Gallego, Muñoz Garm. & C.Navarro

Description

Tuberaria lignosa is a perennial herb, often woody towards the base. It reaches a height of 57 centimetres (22 in) and branches freely. Its leaves are simple, 3–10 cm (1–4 in) long and 0.9–3.4 cm (0.4–1.3 in) wide. The inflorescence is lax, with each flower 2–3 cm (0.8–1.2 in) in diameter.[2]

Distribution and ecology

Tuberaria lignosa is found around the western Mediterranean Basin, in parts of Italy, France, mainland Spain, Portugal, Morocco, Tunisia, Algeria and the Canary Islands.[3]

Taxonomy

The species was first described by Carl Linnaeus in his 1753 work Species Plantarum, as "Cistus tuberaria". It was later transferred to the genus Helianthemum, and when Michel Félix Dunal erected Helianthemum sect. Tuberaria in 1824, he designated "Helianthemum tuberaria" as its type species. In 1827, Robert Sweet published a description of "Helianthemum lignosum", but this name was invalid as a junior synonym of H. tuberaria. In 1836, Édouard Spach raised this subgenus to the rank of genus as Tuberaria; because the International Code of Nomenclature for algae, fungi, and plants forbids tautonyms (such as "Tuberaria tuberaria"), the next oldest available name has to be used. In 1922, Gonçalo Sampaio introduced the combination Tuberaria lignosa, which is the name generally used today. Some botanists consider the species part of the genus Xolantha, in which case it is known as Xolantha tuberaria.

Medical research

The plant has been researched for medical purposes in cancer treatment. An aqueous extract of Tuberaria lignosa inhibited cell growth, altered the cell cycle profile, and induced apoptosis of NCI-H460 Tumor Cells.

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gollark: Am I better at resisting peer pressure than other people: well, I'd *like* to think so, but so would probably everyone else ever.
gollark: Anyway, I have, I think, reasonably strong "no genocide" ethics. But I don't know if, in a situation where everyone seemed implicitly/explicitly okay with helping with genocides, and where I feared that I would be punished if I either didn't help in some way or didn't appear supportive of helping, I would actually stick to this, since I don't think I've ever been in an environment with those sorts of pressures.
gollark: Maybe I should try arbitrarily increasing the confusion via recursion.
gollark: If people are randomly assigned (after initial mental development and such) to an environment where they're much more likely to do bad things, and one where they aren't, then it seems unreasonable to call people who are otherwise the same worse from being in the likely-to-do-bad-things environment.I suppose you could argue that how "good" you are is more about the change in probability between environments/the probability of a given real world environment being one which causes you to do bad things. But we can't check those with current technology.

References
  1. "Tuberaria lignosa (Sweet) Samp". The Plant List. Retrieved 17 April 2015.
  2. M. J. Gallego (2005). "Xolantha Raf." (PDF). Plumbaginaeae (partim) – Capparaceae. Flora Iberica. 3 (2nd ed.). pp. 351–365. ISBN 8400083598.
  3. "Tuberaria lignosa". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 18 April 2015.
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