and cvs., Zones 4–9) are a varied group of shade-loving perennials admired by the Northern Californian gardener for their mounding growth habit, attractive foliage, and … Christmas Rose. Noble Ruler of Poison Plants, King Hellebore. Below is the definitive list of appearances of Hellebore in chronological order. The plants are … The defenders were subsequently so weakened by diarrhea that they were unable to defend the city from assault. The bacterial disease manifested on hellebore plants in the form of black leaf spots, necrosis petal, and stem lesions. Petioles and flowers can also be infected, but the disease is primarily seen in the leaves. Helleborus Champion PPAF Lenten Rose. gutatus + abchasicus, N Spain, SW France (France, Germany, Great Britain naturalised). Green hellebore, Helleborus viridis. Includes mixtures, winter blooming, flowers in snow and frost, foliage plant photos, shade garden plants, planting combinations of Hellebores, Helleborus x hybridus, Helleborus orientalis, Helleborus niger, Helleborus nigercors, Helleborus … Hellebores can also fall prey to snails and slugs, and masses of foliage give them moist, dark places to hide. One of the earliest blooms spotted in many areas, nodding hellebore flowers are often fragrant and long-lasting. 60 cell tray (4 cm plug size) delivery: calendar week 12-21. [23], Botrytis cinerea or grey mold is a fungal disease that infects most ornamental plants. If the burning persists or intensifies, it is recommended to wash the affected areas thoroughly to remove the toxins and see a doctor.[31][32]. Consuming large quantities of hellebore plants can be fatal. They are generally easy to maintain and share the same planting conditions as the standard hellebore. 38 8 34. [33], Poisonings will occur through ingestion or handling. The poisonous alkaloids have been known to sometimes bother gardeners with sensitive skin. Blooming heavily … The spores are spread through the air to new plants. The Plant List includes 90 scientific plant names of species rank for the genus Helleborus. Pre-finished. [34] Although Helleborus niger (black hellebore) contains protoanemonin,[37] or ranunculin,[38] which has an acrid taste and can cause burning of the eyes, mouth, and throat, oral ulceration, gastroenteritis, and hematemesis,[39] research in the 1970s showed that the roots of H. niger do not contain the cardiotoxic compounds helleborin, hellebrin, and helleborein that are responsible for the lethal reputation of "black hellebore". This species of aphid only affects hellebores and is most active in March and April when the hellebores are flowering and when few aphid predators are around, though they may infest during any time of the year. 8 3 2. The following hellebore species and cultivars have gained the Royal Horticultural Society's Award of Garden Merit: More commonly known as the Hellebore leaf miner, Phytomyza hellebori is a small fly that infests only the H. foetidus plants in the Hellebore family. Insecticides may harm non-leaf miner flies if applied during the hellebore's flowering period. The flowers have five petal-like sepals surrounding a ring of small, cup-like nectaries which are actually "petals" modified to hold nectar. Its fingered evergreen leaves are leathery in texture. Be sure to check out my list of other cold hardy perennial plants here. [9] Also of value is their shade tolerance. The tunnels create brownish-black blotches on the plant. The gardenworthiness of these hybrids has still to be proven. Commonly known as hellebores (/ˈhɛlɪbɔːrz/), the Eurasian[2] genus Helleborus consists of approximately 20 species of herbaceous or evergreen perennial flowering plants in the family Ranunculaceae, within which it gave its name to the tribe of Helleboreae. Veratrum viride, or false hellebore isn’t a member of the hellebore … Helleborus x hybridus 'Double Ellen White Spotted' is a beautiful double-flowered Hellebore with pendant or outward-facing, cup-shaped, white, frilled flowers adorned with rose-pink flecks. The larvae will start to eat the inside of the leaves in August, and damage will develop from the late summer to the early spring, with heavy attacks leaving the foliage disfigured by spring. Helleborus niger offers pristine, pure white flowers from late winter to early spring on purple-spotted 1-foot-tall stems. Helleborus viridis is a dainty hellebore with green, chalice-like … Christmas Rose. H. × sternii, a cross between H. argutifolius and H. lividus, first exhibited in 1947, is named after the celebrated British plantsman Sir Frederick Stern. The disease marks the leaves of the hellebores with black streaks, often following the veins of the leaf, and creating ring patterns. So is the 'stinking hellebore' or setterwort (H. foetidus), which has drooping clusters of small, pale green, bell-shaped flowers, often edged with maroon, which contrasts with its dark evergreen foliage. All parts of Hellebores … [4] Many hellebore species are poisonous. 60 44 16. They are excellent for bringing early colour to shady herbaceous borders and areas between deciduous shrubs and under trees. The table below shows the species of the genus helleborus, give its common name, the area of distribution, an image if available and the meaning of the scientific name. [29] The most effective method of treatment against black death is to dig up and destroy all infected plants immediately. This is especially true when hellebores are eaten in large quantities. The genus was established by Carl Linnaeus in volume one of his Species Plantarum in 1753. Facts: Helleborus. Wester Flisk strain has … Small or minimal exposure to the toxins should only cause a mild irritation to the skin, and the affliction should only last for a few minutes. [30], All helleborus plants are toxic, and all parts of the helleborus plant are toxic. [11] (2011). If possible, it is desirable to plant hellebores on a sloping bed, both to improve drainage and also to mak… High levels of ranunculin and protoanemonin, especially in the leaves and sap, will also contribute to symptoms after ingestion. [31][32] Hellebore poisoning is rare, but it does occur. Different varieties of the hellebore plant offer a range of flower colors, from white to black. (Try according the natural distribution), "Nursery owner extols many virtues of hellebores", "RHS Plant Selector Helleborus argutifolius AGM / RHS Gardening", "RHS Plant Selector Helleborus foetidus AGM / RHS Gardening", "RHS Plant Selector Helleborus lividus AGM / RHS Gardening", "RHS Plant Selector Helleborus niger AGM / RHS Gardening", "RHS Plant Selector Helleborus × sternii Blackthorn Group AGM / RHS Gardening", "Vascular Plant Families and Genera - List of Genera in Melanthiaceae", "February 2013 Plant of the Month: Hellebore", "Hellebore make for an enchanting addiction", "Heracles Heracles • Facts and Information on the Greek Hero Heracles", "Post-floral perianth functionality: contribution of persistent sepals to seed development in, A French hellebore enthusiast's non-commercial site, A National Collection of Hellebores, Hazles Cross Farm Nursery (Staffordshire, UK) contains all known species plus hundreds of garden hybrids, Hellebores.org: A comprehensive online resource on the genus, RHS plant pathology report on 'Hellebore Black Death' disease (pdf), https://en.wikipedia.org/w/index.php?title=Hellebore&oldid=994046697, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Short description is different from Wikidata, Articles with unsourced statements from April 2017, Creative Commons Attribution-ShareAlike License, Croatia, Slovenia, N Italy, Switzerland, Austria, S Germany. Hybridising (deliberate and accidental) between H. orientalis and several other closely related species and subspecies has vastly improved the colour-range of the flowers, which now extends from slate grey, near-black, deep purple and plum, through rich red and pinks to yellow, white and green. Of these 14 are accepted species names. Orphan reference: Graham Rice & Elizabeth Strangman, This page was last edited on 13 December 2020, at 21:03. As a member of the Gold Collection®series 'Champion ' offers the same upward and forward facing flowers, leathery disease resistant evergreen leaves and loads of … Ironically, doing this is actually reversing the evolutionary process in which hellebores' true petals had been modified into nectaries; it is usually these nectaries which become the extra petals in double, semi-double and anemone-centred flowers. Hybrid hellebores, Helleborus x hybridus (the Royal Horticultural Society approved name, previously called Lenten rose or Orientalis hybrids), are the most commonly available hellebores with the large, … It seems that earlier studies may have used a commercial preparation containing a mixture of material from other species such as Helleborus viridis, green hellebore. Typically the fungus will only infect plants through an open wound or when the plant is under stress, but it has also been known to infect plants in humid conditions. Lenten Roses, Christmas Roses, Winter Roses, Corsican Hellebores, Green Hellebores, Stinking Roses (Helleborus) Prized for their abundant winter or early spring blooms and attractive foliage, Hellebores … [3] Many species of hellebore have green or greenish-purple flowers and are of limited garden value, although Corsican hellebore (H. argutifolius), a robust plant with pale green, cup-shaped flowers and attractive leathery foliage, is widely grown. Grey mold can infect a plant at any time of the year and is not seasonally dependent. 38 12 25. [40], In Greek mythology, Melampus of Pylos used hellebore to save the daughters of the king of Argos from a madness, induced by Dionysus, that caused them to run naked through the city, crying, weeping, and screaming. [29], Pseudomonas viridiflava is a bacterium that has been claimed to cause disease in hellebores in New Zealand, among other plants. "Picotee" flowers, whose pale-coloured sepals have narrow margins of a darker colour, are much sought-after, as are those with dark nectaries which contrast with the outer sepals. [31] and 17 cm. As the population grows, the aphids will eventually eat the remaining parts of the plant, such as older leaves, for food. The Plant List includes 90 scientific plant names of species rank for the genus Helleborus. Insecticides can be used with limited effectiveness in controlling larvae and fly populations in the plant. Hellebore pruning is relatively easy. List of Helleborus Breeders and Growers Fact Sheets 30 January 2020 Hits: 150. Lenten Rose. Piccadilly has whitish green blossoms and dark green leaves tinged with reddish purple. Flashback sequences or story entries will be … Photo courtesy of the author. The leaves will turn a brownish-white along where the tunnels were dug as time goes on. Hellebores (Helleborus spp. These will later turn into a nesting ground where the flies will lay their larvae in. Helleborus Hellebore. Double-flowered hellebores[14] provide a very interesting variation to the standard hellebore. A situation with morning sun is ideal. The spots will continue to grow larger as the disease progresses, retaining an elliptical or circular shape and turning a dark brown or black color. We do not intend The Plant List to be complete for names of infraspecific rank. [citation needed], During the Siege of Kirrha in 585 BC, hellebore was reportedly used by the Greek besiegers to poison the city's water supply. Attempts to remove the seeds by hand will expose skin to the potent toxins in the sap of the hellebore, which can increase the damage done to the skin. One atypical species (H. thibetanus) comes from western China; another atypical species (H. vesicarius) inhabits a small area on the border between Turkey and Syria. [26], The small black fruiting bodies which carry the spores, pycnidia, are formed in the dead cells of the leaf spots. You should refer instead to the current version of The Plant List. Brian Mathew describes this genus which has been growing in popularity in recent years. Helleborus x hybridus can be grown in full shade but will grow the fastest and have the most flowers in part shade to part sun. How to Prune Hellebores. The cultivar Walberton's Rosemary='Walhero' (sometimes listed under H. × hybridus) has won the Royal Horticultural Society's Award of Garden Merit. Many viruses are not transmitted through seeds, so it is possible to raise new disease resistant plants this way. Hellebore Christmas Rose. The most effective method against C. hellebori is to remove and destroy the infected leaves immediately to avoid reinfection the following spring. Twenty two species are recognised and divided into six sections. The earliest was probably H. × nigercors, a cross between H. niger and H. argutifolius (formerly H. lividus subsp. 13,441 hellebores stock photos, vectors, and illustrations are available royalty-free. [8] The greatest concentration of species occurs in the Balkans. [31], Dermatitis may also occur from handling the hellebore plants without protection. [25], Coniothyrium hellebori is a fungus that causes the most common fungal disease for helleborus species known as Hellebore black spot or leaf spot. Christmas Rose Flower. [42], Double pink hellebore with dark blotching, Double white hellebore with pink spotting, Double pink hellebore with darker pink veining, Double white hellebore hybrid 'Betty Ranicar', Helleborus lividus ssp. The genus Helleborus is in the family Ranunculaceae in the major group Angiosperms (Flowering plants). Recent research in Spain suggests that the persistence of the sepals contributes to the development of the seeds (Herrera 2005). Hellebore … Helleborus orientalis is one of the most toxic varieties of true hellebore, and also one of the most popular in modern gardens. They are particularly valued by gardeners for their winter and early spring flowering period; the plants are surprisingly frost-resistant and many are evergreen. Helleborus orientalis, the Lenten Rose, is one of the first varieties to bloom and offers the greatest variety of colors. 31 51 4. These are primarily included because names of species rank are synonyms of accepted infraspecific names. Hellebore first appeared in Team Titans #4 (December 1992): "Judge and Jury". The next step is to reduce the humidity around the plant by improving the ventilation and ensuring the plants are not overcrowded. Parts of the plant may shrivel and die after exposure to the mold, particularly the flowers. Zones 4-8 How to Cite, The Plant List — A working list for all plant species. The poison on the outside of the plant will cause irritation and burning sensations on the skin. The fungus causes a decay of plant tissues and will grow fuzzy gray-brown mold over the decaying areas, such as the buds, leaves, and flowers. "Black hellebore" was used by the Greek and Romans to treat paralysis, gout and other diseases, more particularly insanity. Visible symptoms include blackish-brown spots that often appear as rings on the leaf blade or at the margins of the leaf. 25 0 23. It is not recommended to spray flowering hellebores as it may harm the non-aphid pollinating insects. See "Status", "Confidence level", "Source" for definitions. Where the soils are rich and evenly moist, these hellebores … 42 10 29. I want them all, really. Young plants. Helleborus x glandforensis is a recent name assigned to crosses of Helleborus x ericsmithii (niger x sternii) x Helleborus x hybridus. The whitish-green aphids are about 2–4mm long and form dense colonies on hellebores, coating them with a honeydew that can lead to the growth of sooty mold on the leaves and flowers of the hellebore. They have no true leaves on their flower stalks (although there are leafy bracts where the flower stalks branch). These four species have leaves on their flowering stems (in H. vesicarius the stems die back each year; it also has basal leaves). If the humidity is low the mold may be contained to discrete spots on the plant, but the mold has been known to spread rapidly in highly humid conditions. In recent years, Ashwood Nurseries[15] (of Kingswinford in the English Midlands), already well known for its Ashwood Garden Hybrids[16] (H. × hybridus singles, semi-doubles, doubles and anemone-centres), has created hybrids between H. niger and H. thibetanus (called H. 'Pink Ice'), and between H. niger and H. vesicarius (called H. 'Briar Rose'). The caulescent species include Helleborus argutifolius, Helleborus foetidus, and Helleborus lividus. [1], The scientific name Helleborus derives from the ancient greek word ἑλλέβορος (helléboros), the name for H. orientalis, constructed from ἑλεῖν (heleîn), meaning "to injure", and βορά (borá), meaning "food".[5][6][7]. ChampionCompact (8-12”); rosy buds, creamy white flowers aging to rose; foliage large, lance-shaped, glossy green. … The symptoms were different from other leaf-spotting hellebore diseases, such as those caused by the fungus Coniothyrium and the bacteria Xanthomonas[30] The case in New Zealand is the only reported case of P. viridiflava infecting hellebores so far, but in other plants P. viridiflava has been reported to also induce symptoms such as leaf rot, leaf blotch, stem necrosis and blossom blight. Love BugCompact (10-12”); rose buds; creamy pink flowers aging … [36] "Black hellebore" is also toxic, causing tinnitus, vertigo, stupor, thirst, anaphylaxis, emesis (vomiting), catharsis, bradycardia (slowing of the heart rate), and finally, collapse and death from cardiac arrest. Despite names such as "winter rose",[3] "Christmas rose" and "Lenten rose", hellebores are not closely related to the rose family (Rosaceae). Pontarlier has toothed green leaves and large clusters of light green, long-lasting flowers. The inner surface of each sepal may be marked with veins, or dotted or blotched with pink, red or purple. ⚠ Version 1 of The Plant List has been superseded. [23][24], Aphids will start their feeding from the outside the flowers, beginning at the leaves and then moving towards the flower petals of the hellebore. In the wild state Helleborus … The spots will grow until they have infect the whole leaf. H. foetidus 'Wester Flisk', with red-flushed flowers and flower stalks, is becoming popular, as are more recent selections with golden-yellow foliage. In the early days of medicine, two kinds of hellebore were recognized: black hellebore, which included various species of Helleborus, and white hellebore, now known as Veratrum album,[34] which belongs to a different plant family, the Melanthiaceae. The cladogram shows the relationship between the different species determined with microbiological methods by Meiners et al. Hybrid hellebores get their common name, Lenten rose, from the rose-like flowers that appear in early spring around the Christian observance of Lent.The “blooms” (which are actually sepals … [24], Aphid infestations can be controlled through persistent squashing of the aphids manually, or by using insecticides. When symptoms are severe new leaves will have limited growth before dying off. H. × ballardiae (H. niger crossed with H. lividus) and H. × ericsmithii (H. niger crossed with H. × sternii) similarly commemorate the noted British nursery owners Helen Ballard and Eric Smith. Their inner petals are generally very like the outer ones in colour and patterning. Hellebore flowers. The Helleborus family has many varieties and hybrid species, and like the other … The most popular ornamental and commercial crop grown in New Zealand is Helleborus orientalis and its hybrids, of which 90 percent of the H. orientalis in the Tauranga nursery contracted the disease after several days of moderate rainfall. The table below shows the species of the genus helleborus, give its common name, the area of distribution, an image if available and the meaning of the scientific name. Currently the only clones in t… 56 22 41. Green Hellebore. of 135. winter plants, cones, berries, branches helleborus leaves hellebore flower hellebore pink helleborus isolated black hellebore helleborus … (2011).[11]. Angel GlowLarge (18-24”); pink buds, frosty pink flowers aging to dusky pink; foliage leathery, blue-green. It can also mark the sepals and flowers with black spots or streaks, but it will not always do so. [26][27], Helleborus net necrosis virus (HeNNV) also known as Hellebore black death is an RNA virus that can cause serious disease in Hellebore plants by stunting or deforming the plant as it grows. The fungus have an ideal habitat to spread and grow at the final growth site for hellebore plants and if left untreated the spores will remain for many years. The Plant List includes a further 23 scientific plant names of infraspecific rank for the genus Helleborus. Home Page › Helleborus. The best advice for anyone who is intending to grow Hellebores from seed is to get them into the ground as soon as possible after they are ripe, which is usually some time between late spring and early summer. Helleborus foetidus , which has the interesting nickname of “the stinking bear foot” or “bear paw hellebore… The spores are mainly spread by water, wind and wind-blown rain. Gardeners and nurserymen have also created hybrids between less closely related species. Hellebores. The status of the 90 species names for the genus Helleborus recorded in The Plant List, are as follows: The status of the 113 names (including infraspecific names) for the genus Helleborus recorded in The Plant List, are as follows: The confidence with which the status of the 90 species names recorded in The Plant List for the genus Helleborus, are assigned as follows: The source of the species name record found in The Plant List for the genus Helleborus, are as follows: © The Plant List 2010 — availability: from October. The sepals do not fall as petals would, but remain on the plant, sometimes for many months. Hybrid hellebores (Helleborus Xhybridus) are very tolerant and will grow well in most soils as long as the ground is not extremely dry or stagnantly waterlogged, although they usually survive even those conditions. Hellebore plants are usually left alone by animals such as deer and rabbits due to the fact that the leaves of the plant produce poisonous alkaloids, making them distasteful to animals. [41], In a fit of madness induced by Hera, Heracles killed his children by Megara. [31][32] When collecting seeds from hellebore plants it is recommended to wait for the pods to dry and shake them out into a container or onto the ground to collect. [22], Macrosiphum hellebori, commonly known as Hellebore aphid or greenfly, is a sap feeding aphid that infests the flowers and foliage of hellebore plants. Stock photography images of Helleborus perennial plants and their flowers, shade garden blooming perennials, including species and hybrids. Helleborus Breeders The hybrisation of Helleborus at Ashwood Nurseries. 153 Free images of Hellebore. Semi-double flowers have one or two extra rows of petals; doubles have more. They prefer a sheltered position in semi-shade (dense shade can reduce flowering) with a rich, moist, free draining soil. In the northern hemisphere, they flower in early spring, around the period of Lent, and are often known as Lenten hellebores, oriental hellebores, or Lenten roses. [38], Helleborus niger is commonly called the Christmas rose, due to an old legend that it sprouted in the snow from the tears of a young girl who had no gift to give the Christ child in Bethlehem. These species have basal leaves. The disease is most common not only in botanical and ornamental gardens, but also in hellebore nurseries as well. Hellebore Christmas Rose. His madness was cured using hellebore. Helleborus x hybridus "Phillip Ballard": Dark blue, almost black flowers (Zones 6-9) [11][12][13] The cladogram shows the relationship between the different species determined with microbiological methods by Meiners et al. These short, extra petals (sometimes known as "petaloids") drop off after the flower has been pollinated, leaving an apparently single flower, whereas doubles and semi-doubles tend to retain their extra petals after pollination. … The outer surface of the sepals is often green-tinged, and as the flower ages it usually becomes greener inside and out; individual flowers often remain on the plant for a month or more. By contrast, anemone-centred flowers have, cupped within the five normal outer petals, a ring of much shorter, more curved extra petals (sometimes trumpet-shaped, intermediate in appearance between petals and nectaries), which may be a different colour from the outer petals. corsicus or H. corsicus, hence the name) first made in 1931. See hellebores stock video clips. 38 16 26. As the hellebore beings to open, the aphids will try to move into the flower. Slovenia, Hungary, Croatia, Romania, Austria, Lenten rose, Lenten hellebore, oriental hellebore, N Turkey, Bulgaria, Ukraine, Georgia, Caucasus, occasionally used for ssp. Terms and Conditions — A note about hellebores: There are nearly two dozen species—and of those, many cultivars—and I wish I had more types growing in my garden. The disease caused discoloration in the form of black leaf spots that were circular and about 1.5–2mm in diameter, black stem lesions, and dry, grey to brown lesions with distinct margins on the flower petals. Nature Flowers. Hellebores are split into two basic groups, acaulescent (without stems) and caulescent (with stems). Family: Ranunculaceae Genus: Helleborus Common Name: Helleborus, Lenten Rose, Christmas Rose Origin: Temperate zones from Europe to Western China; many grow in the Balkan … Other species names (now considered invalid) may be encountered in older literature, including H. hyemalis, H. polychromus, H. ranunculinus, H. trifolius. [10], Twenty two species are recognised and divided into six sections. Recent breeding programmes have also created double-flowered and anemone-centred plants. Hellebore Flower Plant. 84 46 46. Hellebores are widely grown in USDA Zone 5a to 8b gardens for decorative purposes. The so-called Christmas rose (H. niger), a traditional cottage garden favourite, bears its pure white flowers (which often age to pink) in the depths of winter; large-flowered cultivars are available, as are pink-flowered and double-flowered selections. The symptoms become visible in the spring and worsen with time. [22], To control heavy infestations, the leaves can be removed and destroyed during the winter months before the adult flies emerge. Hellebore plants should not be ingested as poisoning cases are most severe when the plants are eaten. Flowers of hellebores are a welcome sight when they bloom in late winter to early spring, sometimes while the ground is still covered with snow. The most popular hellebores for garden use are H. orientalis and its colourful hybrids, H. × hybridus (Lenten rose).. Various species of this genus originated in Europe and Asia. This is typically caused by the ranunculin and protoanemonin found on the outside of the plant, including areas such as the leaves, stem, flower, and sap. The leaf miner fly digs tunnels into the leaves of the H. foetidus. [35] Although the latter plant is highly toxic, containing veratrine and the teratogens cyclopamine (which can cause the fatal birth defect of cyclopia) and jervine, it is believed to be the "hellebore" used by Hippocrates as a purgative. Is Lenten rose toxic? False Hellebore. [32] Toxic cardiac glycosides occur in the roots. The acaulescent species include Helleborus orientalis, Helleborus niger, Helleborus purpurascens, Helleborus viridis, Helleborus atrorubens, and all others. [32] Symptoms of ingestion will include: burning of the mouth and throat, salivation, vomiting, abdominal cramping, diarrhea, nervous systems and possibly depression. [25], To treat the infected plant, the first step is to remove infected and dying leaves, buds and flowers immediately along with any other dead plant materials around the hellebore. Shop for Hellebores is in February and March because the selection is largest and the plants are in flower so you can see what the color will be. The fungus will form black seed like structures in the dead plant tissue to create its spores to help it survive when new host plants are scarce. There are double-flowered hellebores, for instance, unspeakably beautiful, which I might want most. Available pot sizes: 8 cm, 10.5 cm, 13 cm, 15 cm . corsicus (Jardin des Plantes de Paris), Helleborus argutifolius - Innsbruck Botanical Garden, H. niger with fruits and flowers in two different stages, genus of flowering plants belonging to the buttercup family and comprising poisonous species and members popular for horticulture, Distribution maps of 19 species of Helleborus in Europe und Asia (top) and in southeast europe (bottom). They are often of a similar length and shape, though they may be slightly shorter and narrower, and some are attractively waved or ruffled. The aphids will then feed on the inner parts of the plant as well as the young stems and shoots. [28] The most seriously affected in the UK is Helleborus orientalis, but all hellebores are susceptible to the disease. Fact Sheets 30 January 2020 Hits: 150 crosses of Helleborus x glandforensis is a recent name assigned to of. 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