Digital yellow

The digital yellow or small digital ( Digitalis lutea ) is a plant herbaceous, hermaphrodite, high from 60 to 100 cm. She is smaller than the Digitale crimson. The flower contains Digitaline (toxic, and formerly used for the treatment of cardiac failures).

She belongs to the family of the Plantaginaceae (Scrophulariacées according to traditional classification).

Description

The simple stem downwards presents glabrous alternate sheets on the two faces, larger. The lower is narrowed in petiole, the higher are sessile at round base, lengthily lancéolé, glabrous limb or with ciliées margins, denticulées.

It produces in June flowers with pale yellow corolla, whose intrior is hairy and presenting an upper lip fdivized in two rectified lobes. The Racème simple, is very lengthened, unilateral and is broken into leaf; the chalice glabrous or is cilié, with 5 divisions ovals-lancéolés; the yellowish corolla with white broken measurement 15 to 20 mm length and 5 to 7 mm broad. It tubulous, is reinflated, glabrous, and is outwards furnished with long hairs to the inside. Cheesecloths are apparent outside.
Le flowers laid out into long bunches 'opens the ones after the others, sources of pollen during several weeks for the insects (Pollination Entomogame and dissemination épizoochore).

The fruit is a capsule glabrescente, ovoid-conical brown pale, producing very small and round seeds.

Habitat:

In France, it is relatively common in certailns massive mountainous crystalline lenses (Corsica Massif Central, the Vosges, , the Pyrenees, etc), on the edge of the ways and in Lisière of Forêt S. It is rarer in the West and South-west.
On finds it in sunny mountain of the south and up to around 1700 m, whose in the solid masses of the Sainte Balsam and the Sainte Victoire in ubac above approximately 700 m in forest and in the Clairière S, digs S or ébouli S. One does not find it in Brittany, and it is rare or absence out of the above mentioned solid masses and absent in low Provence.

Characteristics/Summarized

reproductive Bodies

dominant Color of the flowers: white
Period of flowering: June-September
Inflorescence: racème simple
Sexuality: hermaphrodite
Order of maturation: protandre
Pollination: entomogame

Seed

Fruit: capsule
Dissemination: épizoochore

Habitat and standard distribution

Habitat: basophilic médioeuropéens, xerophilous hems
Surface of distribution: Western European

Synonyms (taxonomic and nomenclaturaux)

For Digitalis lutea L. (N° nomenclatural BDNFF: 22412)

Digitalis acuta Moench illeg.
Digitalis lutea L. subsp. lutea
Digitalis lutea L. VAr. bracteata Lej. & Courteous
Digitalis lutea L. VAr. ciliata Lej. & Courteous
Digitalis lutea L. VAr. glanduloso-villosa F.Gérard
Digitalis lutea L. VAr. hirsuta Coss. & Germ.
Digitalis lutea L. VAr. pubescens Bréb.
Digitalis nutans Gaterau illeg.
Digitalis parviflora All.
Digitalis parviflora Lam. illeg.

Reference

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