| Pelargonium sidoides | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Geraniales |
| Family: | Geraniaceae |
| Genus: | Pelargonium |
| Species: | P. sidoides |
| Binomial name | |
| Pelargonium sidoides | |
Pelargonium sidoides is a plant native to South Africa, Eswatini, and Lesotho. Its common names include African geranium and South African geranium. The current conservation status is Least concern. [1]
African geranium forms a basal rosette of cordate leaves with a velvet texture and a few short trichomes on long petioles. [2] Its flowers have five dark red to nearly black petals, two of which are sometimes fused. It is often found in flower nearly year-round. It prefers to grow in grasslands with rocky soils. It can be difficult to distinguish from Pelargonium reniforme which grows in a similar area, but tends to have more kidney-shaped leaves.
In cultivation in the UK, Pelargonium sidoides has received the Royal Horticultural Society's Award of Garden Merit. [3] If grown as a perennial it requires protection in winter, as it does not tolerate temperatures below 5 °C (41 °F). It needs a sunny, sheltered position.
A 2013 Cochrane review found limited to no evidence of benefit with Pelargonium sidoides root extract for the symptoms of acute bronchitis, the common cold and acute rhinosinusitis. [4] A summary of this review found that all studies were "from the same investigator (the manufacturer) and performed in the same region (Ukraine and Russia)." [4]
Root extract of Pelargonium sidoides may be sold as a dietary supplement or traditional medicine under various brand names, including Umckaloabo and Zucol, but there is limited high-quality clinical evidence it provides any benefit. [5]
Geranium is a genus of 422 species of annual, biennial, and perennial plants that are commonly known as geraniums or cranesbills. They are found throughout the temperate regions of the world and the mountains of the tropics, with the greatest diversity in the eastern part of the Mediterranean region.
Pelargonium is a genus of flowering plants that includes about 280 species of perennials, succulents, and shrubs, commonly called geraniums, pelargoniums, or storksbills. Geranium is also the botanical name and common name of a separate genus of related plants, also known as cranesbills. Both genera belong to the family Geraniaceae. Carl Linnaeus originally included all the species in one genus, Geranium, and they were later separated into two genera by Charles Louis L'Héritier de Brutelle in 1789.
Berberis, commonly known as barberry, is a large genus of deciduous and evergreen shrubs from 1–5 m (3.3–16.4 ft) tall, found throughout temperate and subtropical regions of the world. Species diversity is greatest in South America and Asia; Europe, Africa and North America have native species as well. The best-known Berberis species is the European barberry, Berberis vulgaris, which is common in Europe, North Africa, the Middle East, and central Asia, and has been widely introduced in North America. Many of the species have spines on the shoots and all along the margins of the leaves.
Pelargonium radens, the rasp-leaf pelargonium is a species of Pelargonium. It is in the subgenus Pelargonium along with Pelargonium crispum and Pelargonium tomentosum.
Geranium maculatum, the wild geranium, spotted geranium, or wood geranium, is a perennial plant native to woodland in eastern North America, from southern Manitoba and southwestern Quebec south to Alabama and Georgia and west to Oklahoma and South Dakota.
Geranium sylvaticum, the wood cranesbill or woodland geranium, is a species of hardy flowering plant in the family Geraniaceae, native to Europe and northern Turkey.
Pelargonium graveolens is a Pelargonium species native to the Cape Provinces and the Northern Provinces of South Africa, Zimbabwe and Mozambique.
Vinca major, with the common names bigleaf periwinkle, large periwinkle, greater periwinkle and blue periwinkle, is a species of flowering plant in the family Apocynaceae, native to the western Mediterranean. Growing to 25 cm (10 in) tall and spreading indefinitely, it is an evergreen perennial, frequently used in cultivation as groundcover.
Geranium carolinianum is a species of geranium known by the common name Carolina crane's-bill, or Carolina geranium. This species is native to North America, where it is widespread and grows in many types of habitat. There are two varieties; Geranium carolinianum var. carolinianum and the Geranium carolinianum var. sphaerospermum. This is a summer or winter annual herb. It can be considered invasive depending on the region, when it is found in the United States it is considered to be native.
Alternative treatments used for the common cold include numerous home remedies and alternative medicines. Scientific research regarding the efficacy of each treatment is generally nonexistent or inconclusive. Current best evidence indicates prevention, including hand washing and neatness, and management of symptoms.
Pelargonium peltatum is a scrambling perennial plant with five shallow or deeply lobed, circular- to heart-shaped, somewhat fleshy leaves, sometimes with a differently coloured semicircular band, that has been assigned to the cranesbill family. It carries umbel-like inflorescences with 2–10, white to mauve, bilateral symmetrical flowers, each with a "spur" that is merged with the flower stalk. It is known by several common names including ivy-leaved pelargonium and cascading geranium. It is native to the Cape Provinces of South Africa. In its home range, it flowers year round but most vigorously from August to October.
Pelargonium quercifolium is a species of geranium known by the common name oakleaf geranium or oak-geranium. It is native to South Africa, and it is a commonly grown ornamental plant. It is in the subgenus pelargonium along with Pelargonium crispum and Pelargonium tomentosum.
Pelargonium capitatum is one of several species known as rose geranium or rose-scented pelargonium in English. The popular names refer to the scent of the essential oils extracted from glandular tissue, not the flowers, which have hardly any scent to speak of. Some of the species are known as kusmalva in Afrikaans.
Pelargonium × hortorum, commonly called zonal geranium, or garden geranium, is a nothospecies of Pelargonium most commonly used as an ornamental plant. It is a hybrid between Pelargonium zonale and Pelargonium inquinans. They are the group of Pelargonium cultivars, with leaves marked with a brown annular zone and inflorescence in the form of large balls of tight flowers, usually red, pink, or white. These are the most common geraniums of garden centers and florists, sold in pots for windowsills and balconies or planted in flowerbeds.
Haworthia truncata, locally known as horse's teeth, is a species of succulent plant in the genus Haworthia. It is found in the Little Karoo region, in the far east of the Western Cape Province, South Africa.
Pelargonium australe is a perennial herb that is endemic to Australia, and found in all states except the Northern Territory. Common names include native storksbill, wild geranium and austral storksbill. The species grows to 50 cm high and has leaves with 5 to 7 lobes. Umbels of 4 to 12 flowers appear between October and March in the species' native range. These are pink with darker markings.
Pelargonium zonale is a species of Pelargonium native to southern Africa in the western regions of the Cape Provinces, in the geranium family. It is one of the parents of the widely cultivated plant Pelargonium × hortorum, often called "geranium", "horseshoe geranium", "zonal geranium" or "zonal pelargonium".
Pelargonium odoratissimum is a pelargonium species native to South Africa. It is also known as the apple geranium or apple pelargonium due to the distinct apple scent. It is in the subgenus Reniforme along with Pelargonium sidoides and Pelargonium exstipulatum.
Pelargonium exstipulatum is a pelargonium species native to South Africa. It is in the subgenus Reniforme along with Pelargonium odoratissimum and Pelargonium sidoides.
Pelargonium inquinans, the scarlet geranium, is a species of plant in the genus Pelargonium. It is a shrub endemic to South Africa, ranging from Mpumalanga to KwaZulu-Natal and Eastern Cape provinces. It is one of the ancestors of the hybrid line of horticultural pelargoniums, referred to as the zonal group. They can easily be propagated by seeds and cuttings.
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