Hoya kerrii | |
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Inflorescence and leaves | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Gentianales |
Family: | Apocynaceae |
Genus: | Hoya |
Species: | H. kerrii |
Binomial name | |
Hoya kerrii | |
Synonyms [1] | |
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Hoya kerrii, also referred to colloquially as Hoya hearts,[ citation needed ] is a species of Hoya native to the south-east of Asia. Its eponymous collector is Arthur Francis George Kerr, Irish physician and botanist.
As the thick leaves are heart-shaped, the plant is sometimes named "lucky-heart". In Europe, it is sold for Saint Valentine's Day.
Its origin area is South China, Vietnam, Laos, Cambodia, Thailand and the Indonesian island of Java.
Hoya kerrii is a climbing plant that can grow up to 4 meters high (around 13 feet). Stems have a diameter of 7 mm. The leaves are 6 cm wide, 5 mm thick. Adult plants show inflorescences of 5 cm diameter and up to 25 flowers. They produce small balls of nectar, coloured red to brown. They smell only faintly or not at all.
A specimen was collected by Arthur Francis George Kerr 1910 in or 1911 in the Doi Suthep mountains west of Chiang Mai (Northern Thailand) at an altitude of 390 m above sea level. It was transplanted to Kew Gardens where it flowered in August 1911, and the species was first described by William Grant Craib from that plant and the wild collections in 1911. [2]
It can be difficult to find a fully vined Hoya kerri at a reasonable price. Garden centres and large box stores often stock Hoya kerrii as a single leaf cutting. The cutting's heart shape makes it a popular purchase for Valentine's Day. The leaf readily roots and remains a planted heart for many months if not years. These are largely considered novelty items as very few single leaf cuttings develop into mature plants. In order for a leaf cutting to sprout a vine, part of the stem and a node is required from the mother plant. Even if a stem and node are present, it can take several years before new growth is observed.
Syngonium is a genus of flowering plants in the family Araceae, native to tropical rainforests in southern Mexico, the West Indies, Central and South America. They are woody vines growing to heights of 10–20 m or more in trees. They have leaves that change shape according to the plant's stage of growth, and adult leaf forms are often much more lobed than the juvenile forms usually seen on small house plants. The scientific name of the genus comes from the Greek words σύν and γονή and refers to the fused ovaries of female flowers.
Hoya is a genus of over 500 accepted species of tropical plants in the dogbane family, Apocynaceae. Most are native to several countries of Asia such as the Philippines, India, Thailand, Malaysia, Vietnam, Bangladesh, Indonesia, Polynesia, New Guinea, and many species are also found in Australia.
Parthenocissus quinquefolia, known as Virginia creeper, Victoria creeper, five-leaved ivy, or five-finger, is a species of flowering vine in the grape family, Vitaceae. It is native to eastern and central North America, from southeastern Canada and the eastern United States west to Manitoba and Utah, and south to eastern Mexico and Guatemala.
Afgekia is a small genus of large perennial climbing shrubs native to Thailand in Asia, belonging to the family Fabaceae. They are reminiscent of the related genus Wisteria.
Hoya carnosa, the porcelainflower or wax plant, is a species of flowering plant in the dogbane family Apocynaceae. It is one of the many species of Hoya that are native to Eastern Asia. It is a common house plant grown for its attractive waxy foliage, and sweetly scented flowers. It is grown well in pots and hanging baskets.
Anredera cordifolia, commonly known as the Madeira vine or mignonette vine, is a South American species of ornamental succulent vine of the family Basellaceae. The combination of fleshy leaves and thick aerial tubers makes this a very heavy vine. It smothers trees and other vegetation it grows on and can easily break branches and bring down entire trees on its own. Other names include lamb's tail and potato vine.
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.
Dischidia is a genus of plants in the “dog-bane” family Apocynaceae, collectively known as the “milkweeds”. They are epiphytes, native to tropical areas of China, India as well as Bhutan’s southern borders, wherever minimal frost occurs. Additionally, they are known from most areas of Mainland Southeast Asia, including forested areas of Myanmar, Thailand, Vietnam, Cambodia, Laos, and some parts of Indonesia, Malaysia and Singapore. Several species are also native to Papua New Guinea and northeastern Australia.
Hoya siamica is a slender vine in the family Apocynaceae and tribe Marsdenieae; it can be found in Indochina and has characteristic long light green leaves.
A stem is one of two main structural axes of a vascular plant, the other being the root. It supports leaves, flowers and fruits, transports water and dissolved substances between the roots and the shoots in the xylem and phloem, photosynthesis takes place here, stores nutrients, and produces new living tissue. The stem can also be called halm or haulm or culms.
Nepenthes bokorensis is a tropical pitcher plant endemic to Cambodia. It is known from Mount Bokor in the south of the country, and an as yet undetermined specimen suggests that it may also be present in other parts of the Dâmrei Mountains of Kampot Province. The specific epithet bokorensis refers to both Mount Bokor and Bokor National Park.
Nepenthes kerrii is a tropical pitcher plant native to Tarutao National Marine Park in southern Thailand, where it grows at elevations of 400–500 m above sea level. The 2018 IUCN assessment also considers the taxon found on Langkawi Island of Malaysia to be conspecific. This species is thought to be most closely related to N. kongkandana. The specific epithet kerrii refers to Irish medical doctor Arthur Francis George Kerr, who made the first known herbarium collection of this species.
Telosma cordata is a species of flowering plant in the family Apocynaceae, native to China and Indo-China. It is cultivated elsewhere and may occur wild as an introduced species. Common names include Chinese violet, cowslip creeper, Pakalana vine, Tonkin jasmine and Tonkinese creeper. The plant bears clusters of golden yellow blooms along the vining stems during summer months. Individual blooms emerge successively over a period of weeks emitting a rich, heavy fragrance during the day and night.
Arthur Francis George Kerr (1877–1942) was an Irish medical doctor. He is known particularly now for his botanical work, which was important for the study of the flora of Thailand.
Nepenthes andamana is a tropical pitcher plant endemic to Phang Nga Province, Thailand, where it grows near sea level in coastal savannah and grassland. It is thought to be most closely related to N. suratensis.
Nepenthes chang is a tropical pitcher plant endemic to the Banthad Mountains of central Thailand, where it grows at elevations of 300–600 m above sea level. It is thought to be most closely related to N. kampotiana.
Nepenthes suratensis is a tropical pitcher plant endemic to Surat Thani Province, Thailand, where it grows near sea level in coastal savannah and grassland. It is thought to be most closely related to N. andamana.
Quercus kerrii is an uncommon Asian species of tree in the family Fagaceae. It is native to Thailand and Vietnam. There are also populations in southern China that according to some authors belong to Q. kerrii but considered by others to belong to a different species, Q. helferiana.Quercus kerrii is placed in subgenus Cerris, section Cyclobalanopsis. Its Chinese name is mao ye qing gang.
Rubus tricolor is an evergreen prostrate shrub, native to southwestern China. Leaves are dark green above, pale green below, and stems have red bristles. It has white flowers in summer and edible red fruit. It grows approximately 0.3 m (0.98 ft) high and usually forming a vigorously spreading, dense mat. In cultivation, it is mainly used as groundcover. Common names include Chinese bramble, groundcover bramble, creeping bramble, Korean raspberry, Himalayan bramble, and groundcover raspberry. In Chinese, it is called 三色莓.
Hoya bilobata, commonly known as wax plant or porcelain flower, is a smaller species of the genus Hoya native to the Philippines. Hoya bilobata is just one of over 200 species of the genus Hoya.