Pulmonaria officinalis

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Pulmonaria officinalis

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Boraginales
Family: Boraginaceae
Genus: Pulmonaria
Species:
P. officinalis
Binomial name
Pulmonaria officinalis
Synonyms
  • Pulmonaria maculosa Liebl.
  • Pulmonaria officinalis subsp. maculosa (Hay) Gams.

Pulmonaria officinalis, common names lungwort, common lungwort, Mary's tears or Our Lady's milk drops, is a

perennial plant of the genus Pulmonaria, belonging to the family Boraginaceae
.

Etymology

The genus name comes from the Latin pulmo meaning lung and was first used by Leonhart Fuchs (1501–1566), a German physician and one of the three founding fathers of botany. The species was named officinalis by Carl Linnaeus for the medical properties of these plants, used since the Middle Ages to treat coughs and diseases of the chest, because of the doctrine of signatures whereby Christian doctors believed that plants that resemble any body part could be used to treat illnesses in this part since God put his signature in the plant to guide mankind.

Description

Botanical sketch of Pulmonaria officinalis showing seeds, from Flora von Deutschland, Österreich und der Schweiz 1885 Thomé

The basal leaves are green,

diploid and has the chromosome number 2n = 14. Flowering period extends from March through May and the seeds ripen from May to June. Pollination is granted by insects (entomophily
) - mainly bees, bumblebees and butterflies - the spread of seeds over ants.

Distribution

This native species is perhaps the most widespread plant in Europe. It is distributed west in the

Balkans and in northern to central Italy
.

Habitat

Pulmonaria officinalis is an understorey species. It grows in deciduous and beech mixed forests from the lowlands to the mountains. It prefers fresh and shady areas, nutrient-rich and mostly calcareous, stony or pure clay loam soils, at an altitude of 0–1,500 meters (0–4,921 ft) above sea level. As a spring geophyte it starts its vegetative period before full foliation of the tree storey. During this time, it is exposed to high solar radiation, which presents a potential danger for the plant. After leaf out, the amount of solar radiation decreases. The plant is adapted to changing conditions with efficient protective and repair mechanisms (morphological characteristics of leaves, epidermal structure, UV-B absorbing substances). After foliation, the amount of photosynthetic pigments in plant leaves slightly increases due to less sunlight available. On the contrary, the UV-B absorbing substances (flavonoids and anthocyanins) are significantly reduced after foliation.

Gallery

  • Illustration of Pulmonaria officinalis from Flora von Deutschland, 1885
    Illustration of Pulmonaria officinalis from Flora von Deutschland, 1885
  • Plant of Pulmonaria officinalis
    Plant of Pulmonaria officinalis
  • Close-up on flowers of Pulmonaria officinalis
    Close-up on flowers of Pulmonaria officinalis
  • Flowers of Pulmonaria officinalis
    Flowers of Pulmonaria officinalis
  • Flowers of Pulmonaria officinalis
    Flowers of Pulmonaria officinalis
  • Flowers of Pulmonaria officinalis
    Flowers of Pulmonaria officinalis

References

External links