Hypericum densiflorum

• Overview
• Interesting Facts
• Common Names
• Description
• Biology
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Overview

Interesting Facts

Common Names

Description

Genus Hypericum

[Trees or] shrubs , subshrubs , or perennial herbs, glabrous or with simple hairs , with translucent ("pale") and often opaque , black or reddish ("dark") glands , laminar (immersed and sometimes abaxial ) and marginal or intramarginal . Leaves opposite [or whorled ], sessile or short petiolate , venation pinnate to palmate [or rarely dichotomous], margin entire or gland-fringed. Inflorescence cymose . Flowers bisexual , homostylous [or heterostylous], stellate or cupped. Sepals 5 and quincuncial or rarely 4 and decussate, unequal or equal, free or partly united . Petals (4 or) 5, contorted, golden to lemon yellow [or rarely white], abaxially sometimes tinged or veined red, persistent or deciduous after anthesis , usually asymmetric . Stamens in [4 or]5 fascicles, free and antipetalous , or some united to form apparently 4 or 3 fascicles with compound fascicle(s) antisepalous , or irregular and apparently not fasciculate, persistent or deciduous, each single fascicle with up to 70[-120] stamens; filaments slender, free from nearly base [or to 2/3 united] or apparently completely free; anthers small, dorsifixed or ± basifixed , dehiscing longitudinally, with gland on connective ; sterile fascicles (fasciclodes) absent [very rare]. Ovary 3-5-loculed with axile placentae or ± completely 1-loculed with (2 or) 3[-5] parietal placentae, each placenta with [2 or] few to many ovules; styles (2 or) 3-5, free or partly to completely united, ± slender; stigmas small or ± capitate. Fruit a septicidal capsule or rarely ± indehiscent, valves often with oil-containing vittae or vesicles . Seeds small, often carinate or narrowly unilaterally winged ; testa variously sculptured , not arillate [very rarely carunculate]; embryo slender, straight, with distinct slender cotyledons.

About 460 species: almost cosmopolitan except for arctic and desert areas and most of the lowland tropics; 64 species (33 endemic) in China.[1]

Physical Description

Landscaping

Care: Shear after flowering to encourage reblooming. Follow a regular watering schedule during the first growing season to establish an extensive root system . Feed regularly during the growing season with a general purpose fertilizer . Prune annually in late winter to promote vigorous new growth.

Habitat

Typically found at an altitude of 0 to 1,092 meters (0 to 3,583 feet).[2]

Biology

Reproduction

Duration: Perennial

Growth

Culture: Space 36-48" apart.

Soil: Prefers organic soil. Needs well-drained soil. Good for dry soils.

Sunlight: Sun Exposure: Full Sun .

Moisture: Drought Tolerance: High

Temperature: Cold Hardiness: 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b. (map)

Taxonomy

Synonyms

Hypericum densiflorum var. lobocarpum (Gattinger) Svens. • Hypericum oklahomense Palmer • Hypericum prolificum var. densiflorum (Pursh) A.Gray • Hypericum Prolificum Densiflorum

Notes

Publishing author : Pursh

Similar Species

Members of the genus Hypericum

ZipcodeZoo has pages for 124 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

H. acutifolium (Sharpleaf St. Johnswort) · H. adpressum (Creeping St. Johnswort) · H. anagalloides (Tinker's Penny) · H. androsaemum (Sweet Amber) · H. androsaemum L. 'Gladys Brabazon' (Sweet Amber) · H. androsaemum 'Albury Purple' (Sweet Amber) · H. androsaemum 'Esm Cho' (Tutsan 'esm Cho') · H. androsaemum 'Esm Española' (Tutsan 'esm Espa) · H. androsaemum 'Esm Greli' (Tutsan 'esm Greli') · H. androsaemum 'Esm Kalua' (Tutsan 'esm Kalua') · H. androsaemum 'Esm Ora' (Tutsan 'esm Ora') · H. androsaemum 'Esm Pin' (Tutsan 'esm Pin') · H. androsaemum 'Esm Re' (Tutsan 'esm Re') · H. androsaemum 'Esm Wet' (Tutsan 'esm Wet') · H. androsaemum 'Glacier' (Sweet Amber) · H. androsaemum 'Glob Dr205' (Tutsan 'glob Dr205') · H. androsaemum 'Glob Lp208' (Tutsan 'glob Lp208') · H. androsaemum 'Golden Tutsan' (Golden Tutsan St. John's Wort) · H. androsaemum 'Verpeacla' (Tutsan 'verpeacla') · H. ascyron (Great St. Johnswort) · H. ascyron gebleri (Great St. Johnswort) · H. boreale (Northern St. Johnswort) · H. brachyphyllum (Coastalplain St. Johnswort) · H. brathys (St. Johnswort) · H. buckleii (Buckley's St. Johnswort) · H. calcycinum (St. John's Wort) · H. calycinum (Aaron's Beard) · H. calycinum 'Brigadoon' (Aaron's Beard) · H. canadense (Lesser Canadian St. Johnswort) · H. canadense boreale (Lesser Canadian St. Johnswort) · H. canariense (Canary Island St. Johnswort) · H. cerastoides (Hypericum) · H. chapmanii (Apalachicola St. Johnswort) · H. cistifolium (Round-Pod St John´s-Wort) · H. concinnum (Goldwire) · H. crux-andreae (Atlantic St. Peter's-Wort) · H. cumulicola (Highlands Scrub Hypericum) · H. densiflorum (Bushy St. Johnswort) · H. denticulatum (Coppery St. Johnswort) · H. diosmoides (Puerto Rico St. Johnswort) · H. dissimulatum (Disguised St. Johnswort) · H. dolabriforme (Straggling St. Johnswort) · H. drummondii (Nits and Lice) · H. edisonianum (Edison Ascyrum) · H. ellipticum (Pale St. Johnswort) · H. elodes (Marsh Hypericum) · H. exile (Florida Sands St. Johnswort) · H. fasciculatum (Peelbark St. Johnswort) · H. forrestii (Forrests St. Johns Wort) · H. fortuneana 'Purple Fountain' (St. Johns Wort) · H. frondosum (Golden St John´s-Wort) · H. frondosum 'Sunburst' (Cedarglade St. John's Wort) · H. galioides (Bedstraw St. Johnswort) · H. gentianoides (Orangegrass) · H. gramineum (Small St John´s-Wort) · H. graveolens (Mountain St. Johnswort) · H. gymnanthum (Claspingleaf St. Johnswort) · H. harperi (Sharplobe St. Johnswort) · H. hookerianum (Hookers St. Johnswort) · H. humifusum (Trailing St John´s-Wort) · H. humifusum suborbiculatum (Trailing St. Johnswort) · H. hypericoides (Reclining St Andrew's Cross) · H. hypericoides hypericoides (St Andrews Cross) · H. hypericoides multicaule (St. Andrew's Cross) · H. hypericoides subsp. multicaule (St. Andrew's Cross) · H. japonicum (Matted St. Johns Wort) · H. kalmianum (Kalm´s St John´s-Wort) · H. kelleri (Hypericum) · H. lancasteri (Lancasters St. Johns Wort) · H. laricifolium (St. Johns Wort) · H. lissophloeus (Smoothbark St. Johnswort) · H. lloydii (Sandhill St. Johnswort) · H. lobocarpum (Fivelobe St. Johnswort) · H. majus (Large St Johnswort) · H. microsepalum (Flatwoods St. Johnswort) · H. mitchellianum (Blue Ridge St. Johnswort) · H. moseranum 'Tri-Color' (Gold Flower) · H. moserianum (St. Johnswort) · H. multicaule (St. Andrew's Cross) · H. mutilum (Dwarf St Johnswort) · H. myrtifolium (Myrtleleaf St. Johnswort) · H. nitidum (Carolina St. Johnswort) · H. nudiflorum (Early St. Johnswort) · H. oblongifolium (St. Johnswort) · H. olympicum f. minus 'Variegatum' (St. Johns Wort) · H. parvulum (Sierra Madre St. Johnswort) · H. patulum Thunb. 'Sungold' (St. Johns Wort) · H. patulum 'Hidcote' (Hidcote Hypericum) · H. patulum 'Variegatum' (St. Johns Wort) · H. pauciflorum (Fewflower St. Johnswort) · H. perforatum (Common St Johnswort) · H. perforatum chinense (Common St Johnswort) · H. polyphyllum (Rockery St. Johns Wort) · H. prolificum (Cinnamon Stick) · H. pseudomaculatum (False Spotted St. Johnswort) · H. pulchrum (Slender St. Johns Wort) · H. punctatum (Spotted St Johnswort) · H. reductum (St Johns Wort) · H. reptans (Creeping St. John's Wort) · H. revolutum keniense (Forest-Primrose)

More Info

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Further Reading

• A preliminary catalogue of the flora of New Jersey / compiled by N.L. Britton with the assistance of eminent botanists. New Brunswick, N.J.: Office of the Survey, 1881. url .
• An illustrated flora of the northern United States, Canada and the British possessions: from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian / by Nathaniel Lord Britton and Hon. Addison Brown. New York: Scribner, 1913. url p. 529, p. 529, p. 530, p. 530.
• Annals of horticulture in North America for the year 1893. A witness of passing events and a record of progress. Comprising and account of the horticulture of the Columbian exposition, by L. H. Bailey. New York, Judd, c1894. url p. 197.
• Annotated list of the ferns and flowering plants of New York state, by Homer D. House. Albany, The University of the state of New York, 1924. url p. 492.
• Annual report / Albany: University of the State of New York, 1902-1918. url p. 10, p. 116, p. 64.
• Annual report of the New Jersey State Museum. Trenton, N.J.: MacCrellish & Quigley, url p. 52, p. 553, p. 78.
• Aquatic and wetland plants of southwestern United States, by Donovan S. Correll and Helen B. Correll. [Washington]Environmental Protection Agency; [For sale by the Supt. of Docs., U.S. Govt. Print. Off.]1972. url p. 1133.
• Bartonia;proceedings of the Philadelphia botanical club. .. 62 2004 Philadelphia, Philadelphia Botanical Club, Academy of Natural Sciences. url p. 115.
• Bibliographical index to North American botany; or, Citations of authorities for all the recorded indigenous and naturalized species of the flora of North America, with a chronological arrangement of the synonymy. by Sereno Watson. Washington, Smithsonian Institution, 1878. url , p. 125.
• Biltmore Nursery, Biltmorse, N.C. [North Carolina?: The Nursery?], c1912 url p. 72.
• Brooklyn Botanic Garden record. 26 1937 [Brooklyn]: Brooklyn Botanic Garden, 1912-44. url p. 81.
• Bulletin of miscellaneous information. Additional Series. Royal Gardens, Kew. 4 1900 [Kew, Surrey: Royal Botanic Gardens], 1898-1936; url p. 208.
• Bulletin of the Biological Society of Washington. Washington, D.C.: The Society, 1918- url p. 83.
• Bulletin of the British Museum (Natural History). London: The Museum, 1951-1992. url p. 331.
• Bulletin of the Natural History Museum. London: The Natural History Museum, c1993-2002. url p. 100, p. 101, p. 96, p. 99.
• Bulletin of the New York Botanical Garden. 1 1898 Lancaster, Pa.: Published for the Garden by the New Era Printing Co., url p. 149.
• Catalogue of plants found in New Jersey. Trenton, John L. Murphy Pub. Co., 1889. url .
• Catalogue of the trees and shrubs in the arboretum and botanic garden at the Central Experimental Farm, Ottawa, Ontario, Canada by Wm. Saunders and W.T. Macoun. Ottawa: Govt. Print. Bureau, 1899. url .
• Come into the garden, by Grace Tabor. Illustrated with photographs. New York, Macmillan, 1921. url p. 180.
• Entomological news. [Philadelphia]American Entomological Society, 1925- url p. 306.
• Erigenia: journal of the Illinois Native Plant Society. Carbondale, Ill.: The Society, 1982- url p. 10, p. 21, p. 38.
• FWS/0BS. [Washington]Fish and Wildlife Service, U.S. Dept. of the Interior. url p. 106, p. 94.
• Flora of Delaware and the Eastern Shore: an annotated list of the ferns and flowering plants of the peninsula of Delaware, Maryland and Virginia. [Wilmington]: Society of Natural History of Delaware, 1946. url p. 176.
• Flora of Indiana, by Charles C. Deam. Indianapolis, Wm. B. Burford printing co., contractor for state printing and binding, 1940. url p. 1073, p. 672.
• Flora of West Virginia, by Charles Frederick Millspaugh and Lawrence William Nuttall. 1 1896 Chicago, 1896. url p. 217.
• Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolina, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana, and in Oklahom by John Kunkel Small. New York, The author, 1913. url p. 791, p. 791.
• Florists' review Chicago: Florists' Pub. Co. url .
• Garden and forest; a journal of horticulture, landscape art and forestry. New York: The Garden and forest publishing co., 1888-97. url , p. 447, p. 452, p. 521, p. 525.
• Gardeners' chronicle of America. New York: Chronicle Press, 1905-1950. url p. 148.
• Handbook of the flora of Philadelphia and vicinity, containing data relating to the plants within the following radius: eastern Pennsylvania, north to the Blue mountains, and west to the Susquehanna; all of New Jersey except the northern counties; and Philadelphia, Philadelphia Botanical Club, 1905. url .
• Horticulture. Boston, Mass.: Horticulture Pub. Co., c1904- url p. 199, p. 65.
• Journal of the Elisha Mitchell Scientific Society. Chapel Hill, N.C. [etc.]Elisha Mitchell Scientific Society [etc.] url p. 107, p. 107.
• List of Pteridophyta and Spermatophyta growing without cultivation in northeastern North America. Prepared by a Committee of the Botanical Club, American Association for the Advancement of Science. New York, 1894. url p. 224.
• Lists of plant types for landscape planting; the materials of planting for ornament listed according to their various uses, by Stephen F. Hamblin. Cambridge, Harvard University Press, 1923. url , , , p. 62.
• Manual of the flora of the northern states and Canada / by Nathaniel Lord Britton. New York: Holt, 1905. url p. 625, p. 626.
• Meehan's monthly: a magazine of horticulture, botany, and kindred subjects. Phila., PA: T. Meehan & Sons, 1891-1902. url , .
• Meehans' monthly: a magazine of horticulture, botany and kindred subjects / conducted by Thomas Meehan. Philadelphia: Thomas Meehan & Sons, 1891-1902. url , p. 97, p. 98.
• Memoirs of the Torrey Botanical Club. 5 1893 - 18 Durham, N.C.: Published for the Club by the Seeman Printery, 1889- url p. 224.
• National list of scientific plant names. [Washington, D.C.]: U.S. Dept. of Agriculture, Soil Conservation Service, 1982- url p. 213.
• Natural area inventory of Pender County, North Carolina / Raleigh: North Carolina Coastal Energy Impact Program, Office of Coastal Management, North Carolina Dept. of Natural Resources and Community Development, [1982?] url p. 41.
• New York State Museum bulletin. Albany, N.Y.: University of the State of New York, 1916-1944. url p. 10, p. 64.
• Ornamental shrubs of the United States (hardy, cultivated) by Austin Craig Apgar. New York, American Book Company[c1910] url p. 78.
• Our northern shrubs and how to identify them: a handbook for the nature-lover / New York: Charles Scribner's Sons, 1922, c1903. url , .
• Plans for pleasant home surroundings Harrisburg, Pa., J. H. McFarland co., horticultural printers, 1903 url p. 21, p. 31, p. 6.
• Plants of Mississippi: a list of flowering plants and ferns / by E.N. Lowe. [Jackson, Miss.]: Mississippi State Geological Survey, 1921. url p. 52.
• Proceedings of the Academy of Natural Sciences of Philadelphia. Philadelphia, Academy of Natural Sciences of Philadelphia url p. 455, p. 455.
• Proceedings of the Biological Society of Washington. Washington, Biological Society of Washington url p. 10, p. 10, p. 198, p. 198, p. 69, p. 69.
• Proceedings of the Entomological Society of Washington. Washington, etc.: Entomological Society of Washington url p. 125.
• Proceedings of the annual convention of the society of American Florists. Boston [etc.]Society of American Florists and Ornamental Horticulturalists. url p. 95.
• Publication. Field Columbian Museum. Chicago.: Field Columbian Museum, 1895-1909. url p. 217.
• Report of the State Botanist. Albany, N.Y.: University of the State of New York, 1898-1925. url , , .
• Science. New York, N.Y.: [s.n.]1880- url p. 832, p. 835.
• Small, J. K. Flora of the southeastern United States;being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolin, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana and the Indian territory and in Oklahoma and Texas east of the one-hundredth meridian /by John Kunkel Small. .. 1903 New York: The author, 1903. url p. 787.
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• The Bradley bibliography; a guide to the literature of the woody plants of the world published before the beginning of the twentieth century; Cambridge, Riverside Press, 1911-18. url p. 19, p. 556.
• The Florists' exchange: a weekly medium of interchange for florists, nurserymen, seedsmen and the trade in general. New York, N.Y.: [A.T. De la Mare Ptg. and Pub. Co., url , p. 1173, p. 208, p. 617, p. 882.
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• The Southern Appalachian forests, WashingtonGovt. Print. Off.1905 url p. 42.
• The complete garden, by Albert D. Taylor, assisted by Gordon D. Cooper. Illustrated with fifty full page cuts, four line charts, and nine coloured plates. Garden City, N.Y., Doubleday, Page, 1921. url p. 180.
• The flora of Tennessee and a philosophy of botany: respectfully dedicated to the citizens of Tennessee / by Augustin Gattinger. Nashville: Press of Gospel Advocate Pub. Co., 1901. url p. 120.
• The plant life of Maryland, by Forrest Shreve [et al.] Baltimore, Johns Hopkins Press, 1910. url p. 291, p. 456.
• The plants of Southern New Jersey with especial reference to the flora of the pine barrens and the geographic distribution of the species. Trenton, N. J., 1911. url , , .
• The plants of Southern New Jersey; with especial reference to the flora of the Pine Barrens and the geographic distribution of the species. Trenton, 1911. url p. 52.
• The plants of southern New Jersey; with especial reference to the flora of the pine barrens and the geographic distribution of the species. Trenton, 1911. url p. 52.
• The shrubs of northeastern America. New YorkPutnam1897 url p. 46.
• The shrubs of northeastern America; by Charles S. Newhall. .. New York [etc.]: G.P. Putnam's Sons, 1893. url p. 46.
• The standard cyclopedia of horticulture; a discussion, for the amateur, and the professional and commercial grower, of the kinds, characteristics and methods of cultivation of the species of plants grown in the regions of the United States a Illustrated with colored plates, four thousand engravings in the text, and ninety-six full-page cuts. New York, Macmillan, 1919 [c1914] url p. 2696, p. 2698.
• The vegetation of the New Jersey Pine-Barrens: an ecologic investigation / by John W. Harshberger. Philadelphia: Christopher Sower Company, 1916. url p. 121, p. 125, p. 140, p. 141, p. 148, p. 219, p. 231, p. 232, p. 246, p. 257.
• Transactions of the Kentucky Academy of Science. [Lexington, Ky.]Kentucky Academy of Science, 1923-1997. url p. 139, p. 168.
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• Trees for Long Island. [S.l.:s.n.], 1908. url p. 59.
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Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 31, 2012.

Data Sources

Accessed through GBIF Data Portal November 21, 2007:

• USDA PLANTS, USDA PLANTS Database
• University of Alabama Biodiversity and Systematics, Herbarium

Identifiers

• Biodiversity Heritage Library NamebankID: 2647474
• Catalogue of Life Accepted Name Code: ITS-21418
• Global Biodiversity Information Facility Taxonkey: 13741192
• Globally Unique Identifier: urn:lsid:ipni.org:names:433369-1
• GRIN Nomen Number: 433094
• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 21418
• International Plant Names Index (IPNI) ID: 126185-2
• Natural Heritage Network Species Identifier: PDCLU030E0
• U.S.D.A. Plant Symbol: HYGL3
• Zipcode Zoo Species Identifier: 43189

Footnotes

1. Xi-wen Li & Norman K. B. Robson "Hypericum". in Flora of China Vol. 13 Page 1, 2. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
2. Mean = 297.730 meters (976.804 feet), Standard Deviation = 305.990 based on 173 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]

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