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La genzianella stellata (Swertia perennis L.) è una pianta perenne che cresce sulle montagne dell'Eurasia e nel Nord America.

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Genzianella stellata
Swertia perennis
Classificazione scientifica
Dominio Eukaryota
Regno Plantae
Divisione Magnoliophyta
Classe Magnoliopsida
Ordine Gentianales
Famiglia Gentianaceae
Genere Swertia
Specie S. perennis
Nomenclatura binomiale
Swertia perennis
L.
Nomi comuni

Genzianella stellata


Descrizione


Il fusto è di colore viola-marrone e di forma quadrangolare e può raggiungere i 60 cm. Le foglie basali sono grandi fino a 15 cm, di forma da ovata a ellittica, ottuse, affusolate in lunghi piccioli. Le foglie cauline sono ovate, opposte o alternate. I fiori a pannocchia hanno cinque petali, di colore blu o violetto e occasionalmente giallo-verde o bianco.


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[en] Swertia perennis

Swertia perennis is a species of flowering plant in the gentian family known by the common names felwort[1] and star swertia. It is native to several regions of the northern hemisphere, including much of Eurasia and western North America. It is a plant of wetlands, particularly calcareous fens. It is common to abundant in many areas, but it is known to be negatively impacted by habitat fragmentation and other habitat destruction, and human activity has led to its extirpation from some areas where it was once common.[2][3] It is a perennial herb producing usually one erect stem growing 10 to 50 centimeters tall. The basal leaves are spoon-shaped with rounded tips, and leaves higher on the plant are widely lance-shaped or somewhat oval, with pointed tips. The inflorescence is an open panicle of flowers atop the stem. Each flower has a calyx of four or five pointed sepals and a corolla of four or five pointed lobes each up to 1.3 centimeters long. The corolla is dull blue to violet in color with darker purplish veining or stippling. There are two rounded nectary pits at the base of each lobe of the corolla. Stamens tipped with large anthers surround a central ovary.

[es] Swertia perennis

Swertia perennis es una especie perteneciente a la familia Gentianaceae.

[fr] Swertia perennis

La Swertie vivace (Swertia perennis) est une espèce de plantes à fleurs de la famille des Gentianaceae. Elle est présente dans plusieurs régions de l'hémisphère nord, dont la plupart de l'Eurasie et de l'Amérique du Nord. Elle est protégée localement en France dans plusieurs régions[1].
- [it] Swertia perennis

[ru] Сверция многолетняя

Све́рция многоле́тняя (лат. Swértia perénnis) — травянистое растение; типовой вид рода Сверция (Swertia) семейства Горечавковые (Gentianaceae).



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