Digitalis grandiflora Mill.

2803 (1). D. grandiflora Mill., Card. Diet. ed. 8, IV (1786) № 4; Heywood, Fl. Eur. Ill (1972) 240; D. ambigua Murr., Prodr. Stirp. Gotting. (1770) 62; Vel., Fl. Bulg. (1891) 423; Стоян., Стеф., Фл. Бълг. изд. 1, II (1925) 1033; Hayek, Prodr. Fl. Penins. Balc. II (1929) 175 — Едроцветен напръстник

Fam:   Scrophulariaceae Juss.
Genus:  Digitalis L.
Species: Digitalis grandiflora Mill.
English Name: Yellow foxglove, Big-flowered foxglove or Large yellow foxglove


Annuals to perennials. Rhizome brown, very short headed with tufts of thin appendage roots. Stems (40) 60 - 100 (-120) cm tall, erect, cylindrical, simple, rarely at the base of the inflorescence branching; their bottom part with long soft bristles, mid almost naked or dispelled cloth top part with glandular hairs. Ovate lanceolate leaves, pointed, smooth top, normally bare and pale green at the end, underneath and especially veins with glandular and simple hairs; leaf rosette and lower leaves of the stem oblong lanceolate, 7 - 25 cm long and 2 - 6 cm wide, almost entire or finely finely serrated, to the base gradually narrowed in short and wide handle; in the middle the stem leaves ovoid lanceolate or elliptical lanceolate, mostly sessile, amplexicaul; upper elongated lanceolate, 4 cm long and 1 cm wide, sessile, to the top, gradually decreasing in size and in passing bracts. Inflorescence 6 - 25 cm long, with many blossoms, loose, one-sided cluster; inflorescence axis densely covered with short, simple and glandular hairs. Blossoms horizontal to curved downward. Blossom stem 2 - 3 mm long, fibrous glandular, when ripe the fruit - 5-15 mm in length. Bracts lanceolate or linear lanceolate, longer than blossom stems. The calyx partitions 4 - 7 mm in length and 1 - 2 mm wide, lanceolate, acute glandular fibrous. Corolla pale yellow, 3 - 5 cm long and 1.5 - 2 cm wide, improper bell-shaped, wide open at the base suddenly narrowed, outside scattered glandular fiber, fiber inside with brown streaks; upper lip unclear duple to almost entire, about 2 mm long; lower triangular with short of the top rounded or more or less pointed and ciliates shares; the middle share 5 - 7 mm long, wider than the lateral and much shorter than the gum tube. Box 8 -  15 mm long and 5 - 8 mm wide, egg-shaped, densely covered with hairs. Seeds yellow-brown, as irregular four-sided prism.

Note. This type covered by that country D. grandiflora Mill. x D. lanata Ehrh. (D. * fuscescens Waldst. Et Kit.) Botevgradsko, Dragalevci (Vel., I.c.).
„Флора на Република България”, том Х, БАН, София, (1995)

*   *   *

Digitalis grandiflora, the yellow foxglove,[1][2] big-flowered foxglove, or large yellow foxglove, is a species of flowering plant in the genus Digitalis, family Plantaginaceae (formerly Scrophulariaceae). It is native to southern Europe and Asia. In mountains it grows on warm, bushy slopes or areas left after logging.
It is an herbaceous biennial or perennial plant with glossy green, veined leaves, whose flowering stem can reach a height of 70–120 cm (28–47 in). The pale yellow bell-shaped flowers are spaced out on the stem, 3–4 cm (1–2 in) long and show a netted brown marking in their interior.[3]
This plant has gained the Royal Horticultural Society's Award of Garden Merit.[4]
As the plant contains cardenolides, all parts are toxic. Its leaves contain 0.2% glycosides of the digitoxin-type and about 0,1% of the digoxin-type. Even so, the plant is not used in the production of cardiac glycosides.
From Wikipedia, the free encyclopedia

*   *   *

Flowering Time: Blooms: V - VII, fruitful: VIII - IX.

References: „Флора на Република България”, том Х, БАН, София, (1995), Wikipedia, the free encyclopedia

Distribution in Bulgaria: It grows in damp places in forests and scrubland on rocky slopes in the plains and mountains. Widespread from 500 until around 1800 meters altitude. (Conspectus of the Bulgarian Vascular Flora) = conspectus&gs_l= Zlc.

Distribution: Eastern and Central Europe (north to Estonia, south to northern Greece and west to Belgium and France), the Caucasus, Western Siberia, South West Asia (Asia Minor).

Conservation status and threats: not protected species in Bulgaria by the Biodiversity Law. Законодателство на Република България: Закон за биологичното разнообразие

Medical plant: no, it is not -

1. 2. 3. 4. 5. 6. 7.

8. 9. 10. 11.


© K.Nanev


© Copy right: K. Nanev© 2012. All rights reserved