rhapis humilis and excelsa

Makawao, Maui, Hawaii. Rhapis humilis is fairly cold hardy and able to take temperatures into the low twenties F. or even colder.  There are reports of it surviving 18 degrees F.  It is Photo by Forest & Kim Starr. Rhapis humilis are all male and Rhapis laoensis are all female. FOR OTHER INFORMATIVE ARTICLES ON PALM TREES, CLICK FOR PALM INFORMATION, TO VISIT OUR PALM TREE ENCYCLOPEDIA, CLICK HERE, TO SEE A 35 MINUTE SLIDE SHOW “PALMS FOR SOUTHERN CA”, CLICK HERE, Phil Bergman Photo Locations: Huntington Botanical Gardens - San Marino, CA, Lotusland - Santa Barbara, CA and Los Angeles County Arboretum - Arcadia, CA. Copyright Karl Gercens. The Board of Trustees of the Royal Botanic Gardens, Kew. Performing well in northside foundation plantings or other shady locations, slow-growing lady palm is also ideal for containers. Leaf sheath loosely sheathing the stem, usually with outer and inner fibers of similar thickness, producing a squared mesh, some young sheaths with flatter, coarser outer fibers and tomentum, ligule not remaining intact at maturity; petiole to 4 mm wide, margin often smooth, rarely minutely scabrid, often bearing brown papillae; blade with V-shaped or semi-circular outline, variable in size, often with a conspicuous palman, segments (1)4–13, folds 11–25, to 375 mm long, broad, relatively straightsided, narrowing slightly at base and apex, apices sometimes cucculate, usually truncate, with regular dentate secondary splitting, primary splits to within 2.5–61 mm of the blade base, sometimes with brown papillae at the base and along the ribs, sometimes scabrid along the adaxial ribs, thick in texture, adaxial and abaxial surfaces similar in colour, often with a yellow tinge, adaxial occasionally darker, transverse veinlets conspicuous. This specimen is at the Natural History Museum (BM) and has been identified by the author as R. excelsa. rhapis humilis: rhapis excelsa, la que tengo en el jardin , esta un poco acalorada , necesita mas sombra,haber si el año que viene le busco una sombrilla,pero es una planta dura aguanta muy bien las heladas. The species epithet for Rhapis Kwamwonzick Siebold has several different spellings in the literature but Kwamwonzick is the only one that is validly published. Some of these cultivars, most dwarf in size, can cost a huge amount of money. They were first collected by the Japanese for Tokugawa shogunate palaces, then Rhapis popularity spread to Europe, and later to America where its low light and humidity requirements make it a common feature in malls and offices. Le Rhapis peut aussi s'acclimater dans une pièce sombre. in synonymy, which was published five years earlier and following modern nomenclatural rules the correct name for the taxon is therefore Rhapis excelsa (Thunb.) Plants sucker from their bases of both species. Rhapis excelsa is typically half this height or less, although tall clones are known to exist.  When younger, Rhapis excelsa, commonly known as lady palm or bamboo palm, is an evergreen fan palm that forms a dense clump of slender, upright, bamboo-like canes clad with palmate, deep green foliage consisting of deeply divided, fan-shaped leaves each of which divide into 5-8 finger-like, narrow-lanceolate segments. identified and cut with pruners. - Laos; Vietnam If leaf spot does occur remove and burn the affected leaves. Rhapis Palm, Lady Palm Rhapis excelsa Synonyms: Chamaerops excelsa, Trachycarpus excelsus. Rhapis excelsa (M. Encinosa's) lady palm This is a suckering species with subterranean rhizomes and upright stems six to eight feet tall. Sometimes stems are thinned out as well by landscapers and nurserymen to also increase elegance and beauty of the palm." R. humilis grows taller than R. excelsa, getting to about 4m in height. This improves your chances for success. With Sheet 24385 matches the widely accepted application of the name R. humilis, while 24386 matches R. excelsa. This slow growing palm has large, shiny, dark green fronds with blunt tips. Rhapis humilis tend to droop downwards at their ends.  R. excelsa This usually dioecious palm species produces a small inflorescence at the top of the plant with spirally-arranged, fleshy flowers containing three petals fused at the base. This means plant in raised beds when planting into poorly drained ground, or opening up the soil by adding organic matter or coarse sand or, in pots or tubs use potting mixes that conform to the Australian Standard. The Rhapis excelsa palm plant is often used by interior landscapers because of its tolerance of lower light intensity, lower humidity and of colder temperatures. comm.). It contains the 300 year old history of Rhapis, complete care and culture, plus bonsai suggestions. The author of Rhapis flabelliformis in Aiton (1789) may have seen the unpublished plate which subsequently may have been separated from the other loose plates (later some of these were collected together) during the distribution of L’ Héritier’s estate after he was murdered in 1800 (Stafleu & Cowan 1981). Baker, M.M. Light: Grow in shade to part shade for best leaf color. Rhapis excelsa NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to form a strategic partnership called N.C. Photo by Dr. Andrew J. Henderson. Palms 47(2) 62-78. The type specimen of R. excelsa is Thunberg’s Chamaerops excelsa which comprises two sheets in the Thunberg collection at Upsala, Sweden – collection number 24385, consisting of a leaf and partial inflorescence, and 24386, comprising a single leaf. Uhl, C.B. The Rhapis is my choice for … comm. Lady palms can be effective accents in a shrub border or near an entryway. SAludos And, it Rhapis excelsa, Rhapis humilis, Rhapis multifida y Rhapis sapida. Rhapis humilis is a great species for interior planting if adequate ceiling height exists.  Because of its size, it is quite popular in central areas of shopping centers, in hotel lobbies and commercial entryways.  One can grow it in an average home but realize that taller canes would become a problem when they reach the ceiling.  I would recommend growing it near a bright window.  Usage of distilled or reverse osmosis water may lead to less brown tipping of the leaflets. three or four. R. excelsa: This popular Rhapis palm grows to about 6 feet tall and forms a dense bush-like clump of stems with upright leaves. nov., 2. Rhapis.  And, this species is a great plant to use when doing hybridization.  But, I will not discuss this here.  Photos with this article show the typical appearance of It also does great in a container or decorative pot in patio areas.  Plants do grow more slowly in pots and mature height may not be achieved.  Outside, it can be put in filtered light or acclimated to full sun along the coast.  Remember that plants twenty-five miles inland in San Marino, CA (Hunting Botanical Garden) are tolerating full sun.  The Los Angeles Arboretum also has specimens seeing a large amount of sun. The mesocarp is fibrous and fleshy, the endocarp thin and brittle. The tallest of lady palms, sometimes exceeding 18 feet highbut it grows only 3 feet wide. Take Freeway 5 to Encinitas, with inquiries about Jungle Music nursery stock. Organs are branched to two orders, emerging within the leaf crown; the small, white fruit develop from one or rarely two or three carpels. It grows well in shade in almost all type of soil. 2003)/Palmweb. Royal Botanic Gardens, Kew. In the BM copy of Hortus Kewensis “[ined]” has been added next to the R. flabelliformis reference, and it could be that the author in Aiton was basing his statement on unpublished material that was later not included (Judith Magee, librarian, pers. Temperatures as low as -5° C are tolerated by R. excelsa as it is quite cold hardy, particularly when grown under shelter, and it also grows in climates where it may be exposed to prolonged periods of cold weather. The Raphis Palm features lush green foliage that is perfect in floral arrangements. Fruit sometimes with 3 carpels developing, often only one reaching maturity, to 8–10 × 8 mm, borne on a short receptacular-stalk to 2 mm, epicarp shiny translucent, minutely papillose, with conspicuous black lenticels. Rhapis humilis in domesticated gardens.  I consider it a great species for any Southern California garden. A short description is given for the name Rhapis flabelliformis L’Hérit ex Aiton in Aiton, Hort. They are probably R. multifida or Originally cultivated by the Japanese for use in shogunate palaces, Lady Palms are still one of the most elegant choices for an indoor specimen. But plants, if taken care of properly, can survive several generations and be passed down in wills along with other family treasures. Another difference between these two multifida is often incorrectly called and sold as “Rhapis humilis”. Rhapis humilis. Description: This is similar to the Rhapis excelsa but the leaves are divided into eight to 22 pieces which are narrower and pointed. R. humilis: This is a smaller clumping palm that grows to about 3 feet tall. Rhapis excelsa Zuikonishiki has yellow markings on each of the segments and is rarely any taller than 60cm (24 inch). Special thanks to Palmweb.org, Dr. John Dransfield, Dr. Bill Baker & team, for their volumes of information and photos. (6) stem with sheaths 1.5-2.1 cm diameter (to 2.5 m tall), (7) stem without sheaths 0.8-1.2 cm diameter. Cela ralentira légèrement sa croissance mais ayant déjà une croissance lente, ça ne fera pas beaucoup de différence. "This color variation is refered to as the Lime Lady Palm." Photo by Mmcknight4. R. excelsa and at their distal end come to a noticeable point.  Contrast this to the jagged and blunt endings of Very hot weather, particularly when the air is very dry, may cause damage which can be prevented by adequate watering, mulching and growing under other plants or pergolas and occasional hosing of foliage with a fine spray or mist can also help to maintain a higher relative humidity. removal of superficial soil, underground attachments of the stems can be They lend a rich tropical look to the landscape. (Geoff Stein). 1856 (K)] have flowers that appear female but have well developed anthers and may be hermaphrodite. Beware of seed merchants who attempt to sell “Rhapis Good close-up photographs enabled the author critically to examine the type. One of us (Henderson) suggests that Rhapis humilis might prove to be just a cultivar of R. excelsa. humilis, anticipate that it won’t be inexpensive and also be a division The leaves often brown tip, for a variety of reasons, and landscapers will often keep cutting the tips back a bit with pinking shears to maintain the wonderful jagged look of the leaflets. It can survive temperatures down to mid twenties without damage. 1789. Fijado. Jungle Music Palms, Cycads and Tropical Plants, Nursery Hours: (619) 291-4605 Lower temperatures will kill stems but plant may recover. from an existing mother plant. This palm as is the case with most Rhapis species is an understorey plant so for best results a partially shaded spot under trees or a pergola is ideal. Photo by Philippe Alvarez. Rhapis excelsa and Rhapis humilis are the oldest cultivated Chinese species, recorded as prized ornamentals in the Far East as early as the 17th Century. Presently, as there are only males of Rhapis Root rots can be avoided through proper cultural practices such as choosing healthy plants in the first place and watering only when necessary. 2003)/Palmweb. Thin out plants or space potted plants to improve ventilation and finally spray all affected plants with a preventative fungicide such as Benlate or Mancozeb. Leaf-ends are saw-toothed unlike most other palms, occurring on slender petioles ranging from 20 to 60 cm in length. Accessed: 2018 Dec. 24. The best protection and control is to use a systemic insecticide which can be absorbed into the plant system. announcements of Jungle Music’s famous Open House Sales! Rhapis excelsa Gyokuhu is a dwarf variety. In well drained soils and mixes this should result in a good balance of water and air. It can tolerate drought to a moderate level. Plants grown in direct sun tend to fade to yellow green and tip burn in hot weather if not provided adequate moisture. ; Carter 1988). (Palms & Cycads), "The most commonly grown species of Rhapis in cultivation is easily Rhapis excelsa, or the Lady Palm. A graceful small palm, also used as a house … [1] The species are commonly known as Lady Palms.They are fan palms (subfamily Coryphoideae), with the leaves with a bare petiole terminating in a rounded fan of numerous leaflets. This plant can be found at nearly every garden outlet center as well as most of the larger nurseries throughout the U.S., and perhaps around the world. See all Rhapis. The only problems I have had being root rot caused by fungus attack because of poor cultural practices and brown or black fungal spot on the leaves, usually symptomatic of poor nutritional status. Some landscapers trim the bottom leaves anyway exposing the stems for a more elegant look. Hastings 2003 6 Henderson 2009. R. multifida only gets to a height of about ten feet, has thinner Description of Rhapis humilis. The reason for this is it is such an easy plant to grow and maintain, with excellent cold tolerance (down to about 20 F), low-light tolerance, modest drought- and wind- tolerance, and amazing pest-resistance. A. Henry, resulting in the name Rhapis flabelliformis being superfluous and the type specimen for it being Thunberg sheet number 24386 (U), the type of Rhapis excelsa. the very tall variety described here.  As mentioned above, some Asian growers claim there are indeed different “varieties of If you really want to obtain this tall Rhapis Photo by Philippe Alvarez. Both average about an inch.  Perhaps it’s because there are often fewer canes with (Geoff Stien), "Rhapis excelsa can be identified by its typical leaflets which end bluntly or raggedly, unlike most of the other common Rhapis that have pointed leaflets. It also has a fibrous sheath covering the stems but it is finer and narrower than the Rhapis excelsa. Rhapis humilis is known as the slender lady palm and is one of the most graceful palms for pots. 'cv. Asmussen-Lange, W.J. Glossary of Palm Terms; Based on the glossary in Dransfield, J., N.W. Two specimens [Malay Peninsula, plant house in a tub s.n. Aiton’s Hortus Kewensis (1789) was written by Solander and continued by Dryander, both scholar librarians employed by Joseph Banks (Stearn W. T. pers. ... Rhapis humilis. canes and usually has a lesser number of leaflets per leaf. Leaves are palmately divided. I have had communications on Internet discussion groups with growers in Asia who say that seed production of For total control use a systemic insecticide and apply as a soil drench as mealybug often invades the roots of a plant, However, pest disease problems are few. One of us (Henderson) suggests that Rhapis humilis might prove to be just a cultivar of R. excelsa. If the tips of the leaflets are pointed and the old ligules of the leaves are persistent it is not an excelsa; cf. This mixed collection type specimen has bedevilled the taxonomy from the very beginning (Beccari referred to “Un grande imbroglio di nomenclatura”) and has been responsible for much of the past confusion between these two species. Etymology: The genus name is from the Greek word 'rhapis' meaning "needle or rod". Rhapis, as all can burn from too much or too strong of a fertilizer program. If grown in too much sun, the leaves tend to turn yellow and are sometimes off green. Rhapis excelsa, The Lady Palm.  The first and most noticeable difference is that Esta no tengo ni idea de lo que es ¿laonensis? Photo by Eric in SF. Maintain adequate moisture for best appearance. The delicate lady palm forms dense clumps of bamboo-like stalks topped with very dark green, broad, fan-shaped leaves. Send mail to phil.bergman@junglemusic.net only with inquiries about Jungle Music nursery stock. Genera Palmarum - Evolution and Classification of the Palms. humilis known to exist, one can only obtain this species (as described are more straight and stiff.  With maturity and time, clumps of Rhapis It is a problem that can occur with all Rhapis excelsa plants. Male flowers globose when young, elongating when mature to 5.2 × 3.8 mm; calyx to 2.8 mm, lobes to 2 mm, usually with a regular margin; corolla sometimes narrowed into a short receptacular-stalk to 1 mm; filaments, shorter row to 2.2 mm, longer row to 2.5 mm, broad, to 0.4 mm, with adaxial keel, triangular in cross section; pistillode sometimes present. Its ability to handle low light intensities, low humidity, varying temperatures plus its suitability to pot culture, small to moderate size and slow growth rate make this palm ideal for indoor culture. The nomenclatural and taxonomic history of R. excelsa is inextricably linked with that of R. humilis and so these aspects of the two species are discussed together here. Phonetic spelling of Latin names by edric. Female flowers to 3.6 × 3.2 mm; calyx to 2.3 mm; corolla with a receptacular-stalk to 1.1 mm; staminodes present. (EDIS) Editing by edric. International Plant Names Index. Ficha de palmera bambú (Rhapis excelsa) PLANTA DEL DIA Palmera bambú (Rhapis excelsa) Familia: Arecáceas Origen: Sur de la China y Vietnam del Norte Características: Palmerita bastante rústica que se adapta a condiciones variadas. The Plant List 2013. So, what I’m discussing here is what’s classically known as “Rhapis humilis” as observed on mature specimens in the United States.  And, all these plants are domesticated plants.   And, most of the known colonies are in California.  It may be that all plants came from an original importation and that that plant was a male.  Of course, this would lead to only male plants in offspring that found their way to other localities.  If this is the case, one would feel that perhaps there are female plants somewhere in the wild.  But, no colony or female plants have been found.  If all domestic plants here came from one single plant, then all of course would be the same sex, male.    And, perhaps all have their roots back to the plant at the Huntington.  Unfortunately, no records exist to make this argument that I am aware of.  With all this said we shall discuss what we can look at and appreciate – the plants that are in gardens here presently. But if, despite great care, root rot symptoms do develop, such as wilting, excessive browning of leaf tips and loss of vigour, firstly remove the plant from the soil it is in, wash roots bare of soil, inspect roots for fungus problems, remove black roots or reddish brown roots and replant into a raised bed of well drained soils. Ripe fruit are fleshy and white, though R. excelsa more readily propagates via underground rhizome offshoots. Rhapis excelsa is an erect, slender, suckering and clustering palm, erect and slender, growing up to 3 to 4 meters tall. Rhapis excelsa differs in having glabrous rachis and rachillae at maturity, tomentum often present on the bracts and stamens with broader keeled filaments; not more than three rachis bracts were recorded, while four were recorded for R. humilis. Brown or black fungal spot is usually caused by poor cultural practices. (Not even Howea forsteriana. ) comm.). Photo by Geoff Stein. In each of the copies in these libraries plate 100 is Solanum xanthocarpum, and R. flabelliformis does not appear in the book. Rhapis excelsa is very adaptable to soil types although neutral to slightly acid soils with good drainage and organic matter is recommended for best results. Lady palm or Rhapis is a plant that is native to Asia, Japan and China. Contact sprays such as malathion are usually not effective. Leaves of this plant are a … Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions. Rhapis humilis is a much taller plant.  It easily gets to sixteen feet.  I have personally seen plants well over twenty feet tall.  (efloras.org) Rhapis humilis need partial shade to bright-diffused light and intermediate temperatures. Published online. that exist. All images copyright of the artists and photographers (see images for credits). a bit more cold hardy than Rhapis excela.  It seems to like the cooler nights seen in Mediterranean climates compared to hot and sticky tropical weather.  This species does not like extreme heat but tolerates temperatures into the 90’s F.  Santa Ana conditions are hard on them and they prefer not to be in an overly hot greenhouse.  In terms of potting soil, a sand based soil with adequate organics and good draining soil should work fine.  Like other palms, the lowest leaves are the first to die and require removal by pruning.  Trimming of brown tipped leaflets ends is an acceptable way to make the plant more handsome if needed. Try to get division with multiple canes, at least

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