Dimorphotheca ecklonis

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Dimorphotheca ecklonis
Osteospermum ecklonis1.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Dimorphotheca
Species:
D. ecklonis
Binomial name
Dimorphotheca ecklonis
DC.
Synonyms [1]

Osteospermum ecklonis(DC.) Norl.

Dimorphotheca ecklonis, also known as Cape marguerite, African daisy, Van Staden's river daisy, Sundays river daisy, white daisy bush, blue-and-white daisy bush, or star of the veldt is a perennial [2] ornamental plant that is native to South Africa. They are part of Asteraceae family [3] . They are common gardening plants due to the array of colors the come in, including yellow, orange, purple, white and pink. [4] They are cultivated in suitable climates as ornamental plants, but are native to South Africa. [4] They are now regarded as an invasive plant in parts of Australia, particularly Victoria and Western Australia. [5]

Features

Cape Marguerite flower in white colour Cape Marguerite.jpg
Cape Marguerite flower in white colour

They are an evergreen, perennial dwarf shrub with the stature heights of 20 to 60 centimeters. [4] The leaves measure 5 to 10 × 1 to 4 inches and are glandular fluffy, sessile, elliptical, slightly succulent, narrow obovate and entire or serrated. The heads are on 15 to 20 centimeters long stems and have a diameter of 5 to 8 centimeters. The bracts are 13 to 16 millimeters long and glandular. The rays are white above and reddish blue below. The disc is dark blue or purple. The fruit surface is net-wrinkled. [6]

The flowering period is from April to September in the northern hemisphere. The plant is said to contain hydrocyanic acid, making it poisonous to livestock. [7]

They are useful model organism for experiments because of traits like ability to grow quickly and all year round. They can also be used as UV indicators because they're phototropic and sensitive to radiation. [8] [9]

Distribution

When found naturally the plants can be seen growing at the base of cliffs or on steep hills. [10] They are native to the Eastern Cape in Uitenhage and Humansdorp, in South Africa, and is found on wet grass and in river beds at altitudes up to 300 meters. They prefer subtropic biomes but has been introduced into the Azores, California, Mauritius, New South Wales, Queensland, Réunion, Spain, Tunisia, Victoria, and Western Australia. [11] They have become popular in Europe in places like Sicily, Italy. [12]

Cultivation

They can be grown as perennial but based on the temperature swings of the climate it can be annual. [13] Based on the climate they tend to bloom late spring to summer, after rain and when the weather is hotter. [14] [4]

Currently, They are widely used as an ornamental plant in pots and beddings. [15] In places like Australia where they have become invasive, the white colored flowers are ground cover plants. [16] They are cultivated once a year. There are numerous hybrids and varieties, including upright, up to 1.5 meters high and half-low. This species has been in culture since about 1920. It thrives best in full sun, in poor, sandy soil.

Germination

The seeds tend to germinate in 15–20 days and prefer light watering and fertilizing. [4] It is suggested that seeds are planted 6–10 inches from one another. [4] [14] For the best development of seeds put them in a area with maximal light. [10] They will grow best in cooler temperatures. [4] [17]

Related Research Articles

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Agapanthus africanus, or the African lily, is a flowering plant from the genus Agapanthus found only on rocky sandstone slopes of the winter rainfall fynbos from the Cape Peninsula to Swellendam. It is also known as the lily-of-the-Nile in spite of only occurring in South Africa.

<i>Osteospermum</i> Genus of plants

Osteospermum, is a genus of flowering plants belonging to the Calenduleae, one of the smaller tribes of the sunflower/daisy family Asteraceae. They are known as the daisybushes or African daisies. Its species have been given several common names, including African daisy, South African daisy, Cape daisy and blue-eyed daisy.

<i>Gerbera jamesonii</i> Species of flowering plant

Gerbera jamesonii is a species of flowering plant in the genus Gerbera belonging to the basal Mutisieae tribe within the large Asteraceae family. It is indigenous to South Eastern Africa and commonly known as the Barberton daisy, the Transvaal daisy, and as Barbertonse madeliefie or Rooigousblom in Afrikaans. It was the first species of Gerbera to be the subject of a scientific description, studied by J. D. Hooker in Curtis's Botanical Magazine in 1889.

<i>Roridula</i> Insect-trapping shrublet from South Africa

Roridula is a genus of evergreen, insect-trapping shrubs, with two species, of about 1⅓–2 m. It is the only genus in the family Roridulaceae. It has thin, woody, shyly branching, upright, initially brown, later grey stems, with lance- to awl-shaped leaves crowded at their tips. The star-symmetrical flowers consist from the outside in of five, green or reddish, free sepals, alternating with five white, pink or purple, free petals. Further to the middle and opposite the sepals are five stamens with the anthers initially kinked down. These suddenly flip up if the nectar-containing swelling at its base is being touched. The center of the flower is occupied by a superior ovary. The leaves and sepals carry many sticky tentacles of different sizes, that trap insects. Roridula does not break down the insect proteins, but bugs of the genus Pameridea prey on the trapped insects. These later deposit their feces on the leaves, which take up nutrients from the droppings. The species can be found in the Western Cape province of South Africa. They are commonly known as dewstick or fly bush in English and vlieëbos or vlieëbossie in Afrikaans.

<i>Strelitzia reginae</i> Species of flowering plant

Strelitzia reginae, commonly known as the crane flower, bird of paradise, or isigude in Nguni, is a species of flowering plant native to the Cape Provinces and KwaZulu-Natal in South Africa. An evergreen perennial, it is widely cultivated for its dramatic flowers. In temperate areas it is a popular houseplant.

<i>Arctotheca calendula</i> Species of plant

Arctotheca calendula is a plant in the sunflower family commonly known as capeweed, plain treasureflower, cape dandelion, or cape marigold because it originates from the Western Cape Province in South Africa. It is also found in neighboring KwaZulu-Natal.

<i>Osteospermum moniliferum</i> Species of plant

Osteospermum moniliferum is an evergreen flowering shrub or small tree in the daisy family, Asteraceae. It is native to southern Africa, ranging through South Africa and Lesotho to Mozambique and Zimbabwe.

<i>Thunbergia alata</i> Species of plant

Thunbergia alata, commonly called black-eyed Susan vine, is a herbaceous perennial climbing plant species in the family Acanthaceae. It is native to Eastern Africa, and has been naturalized in other parts of the world.

<i>Dimorphotheca sinuata</i> Species of flowering plant

Dimorphotheca sinuata, the glandular Cape marigold, Namaqualand daisy, or orange Namaqualand daisy; syn. Dimorphotheca aurantiaca hort.) is a species of plant native to southern Africa. It is also widely cultivated as an ornamental and naturalized in parts of the United States, primarily California and Arizona.

<span class="mw-page-title-main">Calenduleae</span> Tribe of flowering plants

Calenduleae is a flowering plant tribe of the family Asteraceae. Calenduleae has been widely recognized since Alexandre de Cassini in the early 19th century. There are eight genera and over 110 species, mostly found in South Africa.

<i>Dimorphotheca</i> Genus of plants

Dimorphotheca is a genus of plants in the family Asteraceae, native to southern Africa. is one of eight genera of the Calenduleae, with a centre of diversity in Southern Africa. Species are native to Botswana, Eswatini, Lesotho, Namibia, South Africa, and Zimbabwe. Some species can hybridize with Osteospermum, and crosses are sold as cultivated ornamentals. The name "Dimorphotheca" comes from the Greek "Dis" "Morphe" and "Theka", meaning "two shaped receptacle", referring to the dimorphic cypselae, a trait inherent to members of the Calenduleae. Plants of this genus usually have bisexual flowers.

<i>Felicia amelloides</i> A perennial or biennial plant in the daisy family from Southern Africa

Felicia amelloides, the blue daisy bush or blue felicia, is a hairy, soft, usually perennial, evergreen plant, in the family Asteraceae. It can be found along the southern coast of South Africa. It grows as ground cover and produces many very regular branches. It mostly grows to about 50 cm (1.6 ft) high, rarely to 1 m. The leaves are oppositely arranged along the stems, dark green in colour and elliptic in shape. The flower heads sit individually on up to 18 cm (7 in) long, green to dark reddish stalks. They consist of about twelve heavenly blue ray florets that surround many yellow disc florets, together measuring about 3 cm across. It is also cultivated as an ornamental, and was introduced in Europe in the middle of the 18th century.

<i>Felicia aethiopica</i> A shrublet in the daisy family from South Africa

Felicia aethiopica is a low shrublet of up to about 50 cm high that is assigned to the family Asteraceae. It has rigid, leathery, inverted egg-shaped leaves, with only the lowest pair set oppositely. It has flower heads with an involucre of about 8 mm in diameter with bracts that each contain three resin ducts, and have one whorl of twelve to fourteen ray florets with about 11 mm long and 1½ mm wide blue straps surrounding many yellow disc florets. The plant is called wild aster or dwarf Felicia in English, and wilde-aster or bloublombossie in Afrikaans. Flowering occurs year-round. Wild aster can be found in the Western and Eastern Cape provinces of South Africa.

<i>Erica baccans</i> Species of flowering plant

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<i>Cleretum bellidiforme</i> Species of flowering plant

Cleretum bellidiforme, commonly called Livingstone daisy, Bokbaaivygie (Afrikaans), or Buck Bay vygie, is a species of flowering plant in the family Aizoaceae, native to the Cape Peninsula in South Africa. It is a low-growing succulent annual growing to 25 cm (10 in), and cultivated for its iridescent, many-petalled, daisy-like blooms in shades of white, yellow, orange, cream, pink and crimson. In temperate areas it is popularly grown as a half-hardy annual, and lends itself to mass plantings or as edging plants in summer bedding schemes in parks and gardens. It is still widely referenced under its former names, Mesembryanthemum criniflorum and Dorotheanthus bellidiformis.

<i>Dimorphotheca pluvialis</i> Species of flowering plant

Dimorphotheca pluvialis, common names white African daisy, Cape marigold, weather prophet, Cape rain-daisy, ox-eye daisy, Cape daisy or rain daisy, is a plant species native to South Africa and Namibia. It is sparingly naturalized in scattered locations in California.

<i>Felicia josephinae</i> An annual plant in the daisy family from South Africa

Felicia josephinae is a roughly hairy annual herbaceous plant of 15–20 cm (6–8 in) high, that is assigned to the family Asteraceae. It branches near its base, and has few leaves along its stems. The lower leaves are set oppositely, inverted lance-shaped, relatively large at 3–7 cm long and ⅔–1¼ cm wide, and soon withering, while the higher ones are smaller and relatively narrower. In the axils of the leaves grow flower heads of 7–8 mm wide on stalks of up to 5 cm (2.0 in) long, topped with an involucre of about 5 mm (0.20 in) high and 4 mm (0.16 in) wide, consisting of eleven to thirteen bracts in two rows with bristles near the tip, eight to nine white or cream-coloured ligulate florets surrounding fourteen or fifteen deep purple disc florets. Flowers can be found in September and October. The species is an endemic species that can only be found in a small area along the west coast of the Western Cape province of South Africa.

<i>Oncosiphon suffruticosus</i> Species of plant

Onocosiphon suffruticosus, commonly known as the shrubby mayweed, is a flowering plant native to Namibia and the Western Cape and Northern Cape provinces of South Africa. Additionally, it can now be found in France, Australia, and the USA.

<i>Protea lacticolor</i> Species of flowering plant in the family Proteaceae

Protea lacticolor or the Hottentot sugarbush, Hottentot white sugarbush or Hottentot's Holland sugarbush, is a flowering shrub of the Protea genus. It is also known as the Hottentotwitsukkerbos. The plant is endemic to South Africa and is found from the Slanghoek to the Hottentots Holland Mountains and also the Groenlandberg.

<i>Zantedeschia odorata</i> Species of flowering plant

Zantedeschia odorata, the Bokkeveld arum, is a species in the arum family, Araceae. It is a tuberous, perennial plant that grows to a height of 75 to 100 cm. The flowers are yellow, have long narrow veins and are enclosed by a white leathery bract. The leaves are arrow-shaped. The plant grows in wetlands or along streams. The plant is rare and indigenous to the Northern Cape where it occurs on the Bokkeveld escarpment near Nieuwoudtville.

References

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  9. Trigona, Carlo; Napoli, Giuseppe; Pasquale, Stefania; Puglisi, Ivana; Baglieri, Andrea; Gueli, Anna Maria (May 2021). "A Plant-Based Sensor for UV-A Radiation Measurements". 2021 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). pp. 1–5. doi:10.1109/I2MTC50364.2021.9459911. ISBN   978-1-7281-9539-1.
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  14. 1 2 admin (2015-03-06). "Production Guidelines for Four Crops—Osteospermum, Angelonia, Calibrachoa & Ornamental Sweet Potato (Ipomoea batatas)". Center for Agriculture, Food, and the Environment. Retrieved 2024-03-25.
  15. Giovannini, Annalisa; Zottini, Michela; Morreale, Giacomo; Spena, Angelo; Allavena, Andrea (January 1999). "Ornamental traits modification by Rol genes in Osteospermum ecklonis transformed with Agrobacterium tumefaciens". In Vitro Cellular & Developmental Biology – Plant. 35 (1): 70–75. doi:10.1007/s11627-999-0012-2. ISSN   1054-5476.
  16. Laura, Marina; Consonni, Roberto; Locatelli, Franca; Fumagalli, Elisabetta; Allavena, Andrea; Coraggio, Immacolata; Mattana, Monica (September 2010). "Metabolic response to cold and freezing of Osteospermum ecklonis overexpressing Osmyb4". Plant Physiology and Biochemistry. 48 (9): 764–771. doi:10.1016/j.plaphy.2010.06.003. PMID   20619667.
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Bibliography

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