Potentilla delphinensis
Encyclopedia
Potentilla delphinensis is a herbaceous
perennial species of cinquefoil
belonging to the Rosaceae
family.
, as its overwintering buds are situated just below the soil surface and the floral axis is more or less erect with a few leaves.
This plant has an erect, strong and hirsute stem reaching on average 30–50 cm (11.8–19.7 ) in height. The leaves are in rosette, hairy, with a long petiole
and are divided into five obovate and toothed leaflets with elongate lanceolate stipule
s. The inflorescence
has several large flowers (about 2.5 centimetre (0.984251968503937 in) in diameter), with a corolla of yellow petals. The flowering period extends from July through August. Pollination is granted by insects.
et Dauphiné
: Bauges
; Isère
; Hautes-Alpes
, Col du Lautaret
). In the same geographical locations are present two related species (Potentilla grandiflora and Potentilla thuringiaca), morphologically quite similar.
Herbaceous
A herbaceous plant is a plant that has leaves and stems that die down at the end of the growing season to the soil level. They have no persistent woody stem above ground...
perennial species of cinquefoil
Potentilla
Potentilla is the genus of typical cinquefoils, containing about 500 species of annual, biennial and perennial herbs in the rose family Rosaceae. They are generally Holarctic in distribution, though some may even be found in montane biomes of the New Guinea Highlands...
belonging to the Rosaceae
Rosaceae
Rosaceae are a medium-sized family of flowering plants, including about 2830 species in 95 genera. The name is derived from the type genus Rosa. Among the largest genera are Alchemilla , Sorbus , Crataegus , Cotoneaster , and Rubus...
family.
Description
The biological form of Potentilla delphiniensis is hemicryptophyte scaposeGlossary of botanical terms
Many of the terms used in Wikipedia glossaries are already defined and explained within Wikipedia itself. However, lists like the following indicate where new articles need to be written and are also useful for looking up and comparing large numbers of terms together.This glossary is incomplete;...
, as its overwintering buds are situated just below the soil surface and the floral axis is more or less erect with a few leaves.
This plant has an erect, strong and hirsute stem reaching on average 30–50 cm (11.8–19.7 ) in height. The leaves are in rosette, hairy, with a long petiole
Petiole (botany)
In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules. Leaves lacking a petiole are called sessile, or clasping when they partly surround the...
and are divided into five obovate and toothed leaflets with elongate lanceolate stipule
Stipule
In botany, stipule is a term coined by Linnaeus which refers to outgrowths borne on either side of the base of a leafstalk...
s. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
has several large flowers (about 2.5 centimetre (0.984251968503937 in) in diameter), with a corolla of yellow petals. The flowering period extends from July through August. Pollination is granted by insects.
Distribution
Potentilla delphinensis is a very rare and threatened endemism occurring in the Southern French Alps (SavoieSavoie
Savoie is a French department located in the Rhône-Alpes region in the French Alps.Together with the Haute-Savoie, Savoie is one of the two departments of the historic region of Savoy that was annexed by France on June 14, 1860, following the signature of the Treaty of Turin on March 24, 1860...
et Dauphiné
Dauphiné
The Dauphiné or Dauphiné Viennois is a former province in southeastern France, whose area roughly corresponded to that of the present departments of :Isère, :Drôme, and :Hautes-Alpes....
: Bauges
Bauges
The Bauges Mountains is a mountain range in eastern France, stretching from the city of Annecy to the city of Chambéry, which is part of the French Prealps.- Major peaks :The Bauges have 14 summits above :...
; Isère
Isère
Isère is a department in the Rhône-Alpes region in the east of France named after the river Isère.- History :Isère is one of the original 83 departments created during the French Revolution on March 4, 1790. It was created from part of the former province of Dauphiné...
; Hautes-Alpes
Hautes-Alpes
Hautes-Alpes is a department in southeastern France named after the Alps mountain range.- History :Hautes-Alpes is one of the original 83 departments created during the French Revolution on 4 March 1790...
, Col du Lautaret
Col du Lautaret
Col du Lautaret is a high mountain pass in the department of Hautes-Alpes in France.It marks the boundary between the valleys of the Romanche and the Guisane, a tributary of the Durance which has its source at the col. The valleys are linked by national route 91...
). In the same geographical locations are present two related species (Potentilla grandiflora and Potentilla thuringiaca), morphologically quite similar.