Digitalis grandiflora

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Digitalis grandiflora
Digitalis grandioflora 2.jpg
Digitalis grandiflora at Schynige Platte
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Plantaginaceae
Genus: Digitalis
Species:
D. grandiflora
Binomial name
Digitalis grandiflora

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. The Latin specific epithet grandiflora means “large flowered”. [3]

Contents

Description

It is a herbaceous perennial growing from a short rootstock with fibrous roots. [4] D. grandiflora has 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. [5] In the wild, plants bloom in June and July. [6]

Cultivation

Digitalis grandiflora is long lived perennial, [6] it has gained the Royal Horticultural Society's Award of Garden Merit. [7] [8] It is winter hardy is USDA zones 3 to 8 and grows best in moisture retentive, but well drained, organic soils in part shade. [9] Cultivated plants in Germany bloom from June to August, in North America, flowering occurs from May to June in Missouri and from June to July in Ohio; with the typical bloom period lasting eight weeks. [6]

Cultivars

Hybrids

(Hybrid formula: Digitalis grandiflora Mill. × Digitalis purpurea L.).

Pharmacology

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.

Related Research Articles

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<i>Libertia grandiflora</i> Species of flowering plant

Libertia grandiflora, the tukauki or mikoikoi, is a flowering plant in the family Iridaceae. The species is endemic to New Zealand, and is found on the North Island and the northern part of the South Island. It is a clump-forming herbaceous perennial growing to 90 cm (35 in) tall by 60 cm (24 in) broad, with leathery linear leaves and panicles of white flowers in spring, followed by seed capsules. The Latin grandiflora means large flowered; its flowerheads can grow up to three centimetres across.

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<i>Digitalis ferruginea</i> Species of flowering plant in the family Plantaginaceae

Digitalis ferruginea, the rusty foxglove, is a species of flowering plant in the family Plantaginaceae, native to Hungary, Romania, Turkey and the Caucasus. It is a biennial or short-lived perennial plant growing to 1.2 m, which forms a rosette of oblong dark green leaves and carries spikes of russet, tubular flowers in summer.

<i>Digitalis <span style="font-style:normal;">×</span> fulva</i> Hybrid species of flowering plant

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Digitalis obscura, commonly called willow-leaved foxglove or dusty foxglove or spanish rusty foxglove, is a flowering plant native to regions in Spain and Morocco. It is also grown as an ornamental flower. This foxglove is a woody perennial plant belonging to the family Plantaginaceae. Along with the other foxgloves it used to be placed in the figwort family, Scrophulariaceae; however, recent genetic research has moved the genus Digitalis to a larger family. It is similar to many of the foxglove species in its high toxicity and medicinal use as a source for the heart-regulating drug digoxin. Its strikingly distinctive amber- to copper-coloured flowers give the species its name and help distinguish it from other members of the genus.

<i>Rehmannia elata</i> Species of flowering plant

Rehmannia elata, the Chinese foxglove, is a species of flowering plant in the family Orobanchaceae, native to China. Growing to 150 cm (59 in) tall by 50 cm (20 in) broad, it is an herbaceous perennial with veined, hairy leaves and pink, tubular flowers with darker pink stripes in summer. The flowers bear a superficial resemblance to foxgloves, hence the common name "Chinese foxglove", which is also applied to the whole genus. However this species is not closely related to the true foxglove (Digitalis).

<i>Digitalis parviflora</i> Species of foxglove

Digitalis parviflora, the small-flowered foxglove, is a species of flowering plant in the plantain family Plantaginaceae. It is endemic to northern and central Spain. It grows at 500–2000 metres in altitude.

References

  1. BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  2. USDA, NRCS (n.d.). "Digitalis grandiflora". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 18 January 2016.
  3. Harrison, Lorraine (2012). RHS Latin for Gardeners. United Kingdom: Mitchell Beazley. ISBN   978-1845337315.
  4. Flora of the U.S.S.R. Vol. 22. 1997.
  5. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN   978-1405332965.
  6. 1 2 3 4 5 Tomasz Ani_ko (1 January 2008). When Perennials Bloom: An Almanac for Planning and Planting. Timber Press. pp. 173–. ISBN   978-0-88192-887-7.
  7. "Digitalis grandiflora" . Retrieved 27 May 2020.
  8. "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 29. Retrieved 6 February 2018.
  9. "Digitalis grandiflora - Plant Finder".