Digitalis canariensis

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Digitalis canariensis
Cresta de Gallo (Isoplexis canariensis) - panoramio.jpg
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. canariensis
Binomial name
Digitalis canariensis
Synonyms [2] [3]

Digitalis canariensis (common name: Canary Island foxglove) [4] is a member of the genus Digitalis .

Contents

Taxonomy

This species is part of section Isoplexis , which was temporarily accepted as an own genus. The synonym Isoplexis canariensis also continues to be used. In general, as of 2017, opinions concerning the taxonomic status of Isoplexis species differ depending on the source. [2] [3]

Description

Individuals of these species are small, evergreen plants growing into rounded shrubs up to 150 cm tall. [5] The plant has lanceolate-ovoid leaves with toothed margins. The leaves are spirally arranged. The inflorescence is a cluster of orange-reddish flowers up to 3 cm in length, with short petals and noticeable upper and lower lip. Bird pollination by the island populations of Phylloscopus species has been documented. The fruit is a capsule.

D. canariensis, fruit Isoplexis (Digitalis) canariensis-2.jpg
D. canariensis, fruit

Digitalis canariensis contains cardenolids (cardiac glycosids), [6] which are toxic. Medical use is documented, primarily historical in nature.

Distribution

Digitalis canariensis is endemic to the Canary Islands where it occurs on the islands of Tenerife, La Gomera and La Palma. [3] [7] It grows in laurel forest and Erica arborea woods.

Related Research Articles

<i>Digitalis</i> Genus of flowering plants in the family Plantaginaceae

Digitalis is a genus of about 20 species of herbaceous perennial plants, shrubs, and biennials, commonly called foxgloves.

<i>Aeonium</i> Genus of succulents

Aeonium, the tree houseleeks, is a genus of about 35 species of succulent, subtropical plants of the family Crassulaceae. Many species are popular in horticulture. The genus name comes from the ancient Greek αἰώνιος / aiōnios (ageless). While most of them are native to the Canary Islands, some are found in Madeira, Cape Verde, Morocco, in East Africa and Yemen.

<i>Digitalis purpurea</i> Toxic flowering plant in the family Plantaginaceae

Digitalis purpurea, the foxglove or common foxglove, is a toxic species of flowering plant in the plantain family Plantaginaceae, native to and widespread throughout most of temperate Europe. It has also naturalized in parts of North America, as well as some other temperate regions. The plant is a popular garden subject, with many cultivars available. It is the original source of the heart medicine digoxin. This biennial plant grows as a rosette of leaves in the first year after sowing, before flowering and then dying in the second year. It generally produces enough seeds so that new plants will continue to grow in a garden setting.

<i>Phoenix canariensis</i> Species of flowering plant

Phoenix canariensis, the Canary Island date palm or pineapple palm, is a species of flowering plant in the palm family Arecaceae, native to the Canary Islands off the coast of Northwestern Africa. It is a relative of Phoenix dactylifera, the true date palm. It is the natural symbol of the Canary Islands, together with the canary Serinus canaria. Mature P. canariensis are often used in ornamental landscaping and are collected and transplanted to their new planting location. A Canary Island date palm with 10 m (30 ft) of trunk is about 60 years of age.

<i>Canarina</i> Genus of flowering plants in the bellflower family Campanulaceae

Canarina is a genus of flowering plants within the family Campanulaceae. They are herbaceous perennial vines with bell-shaped flowers. The best known species is Canarina canariensis from the laurel forests of the Canary Islands which is grown as an ornamental plant. C. canariensis is one of a group of unrelated Canarian plants that appear to be adapted for bird pollination, including the members of the genera Isoplexis and Lotus. It was once thought that the original pollinators of these plants were sunbirds which had become extinct on the Canary Islands, explaining why some of these species are rare and considered endangered. However more recent work has shown that these plants are adequately pollinated by non-specialist flower visiting birds, particularly the Canary Islands chiffchaff and the Canary Island spectacled warbler, and in fact show some specific adaptations to infrequent pollination by these birds, such as extended flower lifespans, and a hexose-dominated sugar ratio of the nectar.

<i>Quercus canariensis</i> Species of oak tree

Quercus canariensis, the Algerian oak, Mirbeck's oak or zean oak, is an oak native to southern Portugal, Spain, Tunisia, Algeria and Morocco. Despite the scientific name, it does not occur naturally today in the Canary Islands, though it may have in the past. It is placed in section Quercus.

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

Digitalis lanata, vernacularly often called woolly foxglove or Grecian foxglove, is a species of foxglove, a flowering plant in the plantain family Plantaginaceae. It gets its name due to the woolly indumentum of the leaves. D. lanata, like other foxglove species, is toxic in all parts of the plant. Symptoms of digitalis poisoning include nausea, vomiting, severe headache, dilated pupils, problems with eyesight, and convulsions at the worst level of toxicity. The plant is also harmful to other animals.

<i>Isoplexis</i> Genus of flowering plants in the plantain family Plantaginaceae

Isoplexis is a section of four species of flowering plants within the genus Digitalis in the plantain family Plantaginaceae. The species of section Isoplexis differ from other plants in the genus Digitalis in that their monosymmetric flowers have a distinctive large upper lip rather than large lower lip and the species are endemic to the Canary Islands and Madeira.

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

Digitalis grandiflora, the yellow foxglove, big-flowered foxglove, or large yellow foxglove, is a species of flowering plant in the genus Digitalis, family Plantaginaceae. 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”.

<i>Penstemon digitalis</i> Eastern North American species of penstemon

Penstemon digitalis is a species of flowering plant in the plantain family, Plantaginaceae. The flowers are white and are borne in summer. It is native to eastern Canada and the eastern and southeastern United States. Penstemon digitalis is the most widespread species of Penstemon east of the Mississippi River.

<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 thapsi</i> Species of foxglove

Digitalis thapsi, which has been called mullein foxglove in the US, is a flowering plant in the genus Digitalis that is endemic to the Iberian Peninsula, where it occurs in eastern Portugal and central and western Spain. It is of commercial importance as an ornamental plant. Hybrids with D. purpurea have proved successful and are fertile.

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

Digitalis × fulva, the strawberry foxglove, is a hybrid species of flowering plant within the family Plantaginaceae. It is a naturally occurring fertile hybrid between the species Digitalis grandiflora and Digitalis purpurea. The species is widely marketed in the UK under the common name of strawberry foxglove or its taxonomic synonym Digitalis × mertonensis. The species has been used to produce various cultivars and has gained the Royal Horticultural Society's Award of Garden Merit.

<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>Davallia canariensis</i> Species of fern

Davallia canariensis, the hare's-foot fern, is a species of fern in the family Davalliaceae. It is endemic to Macaronesia and the Iberian Peninsula. It grows well in a sunny atmosphere and amongst rocks.

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

Digitalis davisiana is a species of foxglove, a herbaceous plant in the genus Digitalis in the family Plantaginaceae, formerly in the Scrophulariaceae and briefly the Veronicaceae. It is native to Turkey.

<i>Lavandula canariensis</i> Species of plant

Lavandula canariensis is a species of flowering plant in the family Lamiaceae, native to the Canary Islands. It was first described by Philip Miller in 1768.

<i>Salix pedicellata</i> Species of plant

Salix pedicellata is a species of willow. It is a shrub or small tree to about 6–8 m tall, native around the Mediterranean Sea from Portugal to Lebanon and Syria in the north and from the Canary Islands to Tunisia in the south. Salix canariensis may be treated as a subspecies of S. pedicellata.

<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.

<i>Digitalis minor</i> Species of plant

Digitalis minor is a species of flowering plant in family Plantaginaceae, which has been called dwarf Spanish foxglove. It is a biennial or short-lived perennial species of foxglove which is endemic to the Balearic islands with large, pendulous, pink or purple flowers. Closely related to the common purple foxglove, it is best distinguished by its small fruits. It is one of the only foxgloves to grow in calciferous, alkaline soils.

References

  1. "Digitalis canariensis". International Plant Names Index . The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens. Retrieved 25 November 2020.
  2. 1 2 The Plant List. Isoplexis canariensis. Royal Botanic Gardens, Kew (2017-07-31)
  3. 1 2 3 "Digitalis canariensis L." Plants of the World Online . Royal Botanic Gardens, Kew. 2017. Retrieved 25 November 2020.
  4. "Digitalis canariensis | Canary Island foxglove Conservatory Greenhouse/RHS Gardening". www.rhs.org.uk. Retrieved 2024-06-16.
  5. Brickell, Christopher, ed. (1989). The Royal Horticultural Society Gardeners' Encyclopaedia of Garden Plants. London: Dorling Kindersley Ltd. pp. 139, 496. ISBN   9780863183867.
  6. P. Studer, S. K. Pavanaram, C. R. Gavilanes, Horst Linde, Kuno Meyer: Die Glykoside der Blätter von Digitalis canariensis. Helvetica 46/1, 1963, 23-45.
  7. Marhold, Karol (2011). Greuter, Werner; von Raab-Straube, E. (eds.). "Details for: Isoplexis canariensis". Euro+Med Plantbase. Botanic Garden and Botanical Museum Berlin-Dahlem . Retrieved 25 November 2020.