Overview
Native Americans used the stalk of this perennial for fiber in the same way Europeans used their hemp plant, Cannabis sativa. Indian Hemp is superior, however, because it is stronger and lasts longer . This herb is poisonous.
Interesting Facts
- This plant has been confused with common milkweed by people wanting to feed hungry monarch caterpillars. It does "bleed" white sap when cut , but the leaf placement is different than milkweed. Also, Indian Hemp stems are tough and stringy, and they branch , none of these traits are found in the unbranching, hollow-stemmed common milkweed. Monarch caterpillars know the difference, and will not eat these leaves.
- Indian hemp and other plants in the Apocynum genus are poisonous to horses, cattle, sheep, goats cats, dogs, and humans. The plants contain apocynamarin, cynarin, and apocynein. The last 2 poisons are cardiac glycosides which cause irregular heartbeats and can result in death .
Common Names
Click on the language to view common names.
Common Names in English:
Canacian Hemp, Clasping-Leaf Dogbane, Common Dogbane, Dogbane, Hemp Dogbane, Indian Hemp, Indian-Hemp, Indianhemp, Prairie Dogbane
Common Names in Korean:
Samdzonghjangpul
Common Names in Spanish:
Cáñamo Indio
Description
Family Apocynaceae
Trees
, shrubs
, or vines
, rarely subshrubs
or herbs, with latex or rarely watery juice. Leaves simple
, opposite, rarely whorled
or alternate, pinnately veined; stipules absent or rarely present. Inflorescences cymose
, terminal
or axillary
, with bracteoles. Flowers bisexual
, 5- [or 4]-merous, actinomorphic
. Calyx 5- or rarely 4-partite, quincuncial, basal glands
usually present. Corolla 5- or rarely 4-lobed, salverform
, funnelform
, urceolate
, or rarely rotate, lobes
overlapping to right
or left, rarely valvate
. Stamens 5 or rarely 4; filaments
short; anthers
mostly sagittate
, free
or connivent into a cone adherent
to pistil head
, dehiscing longitudinally, base
rounded
, cordate, sagittate, or prolonged into an empty spur; pollen granular
; disc ringlike or cup-shaped, 2-5-lobed, or absent. Ovaries superior, rarely half-inferior, connate
or distinct
, 1- or 2-locular; ovules (1 or) 2-numerous per locule. Style 1; pistil head capitate, conical
, or lampshade-shaped, base stigmatic, apex 2-cleft and not stigmatic
. Fruit a berry, drupe, capsule, or follicle. Seeds with or without coma; endosperm thick and often horny
, scanty, sometimes absent; embryo straight or nearly so, cotyledons often large, radicle terete
.
About 155 genera and 2000 species distributed primarily in the tropics and subtropics, poorly represented in the temperate regions
. Of the 44 genera and 145 species present in China, one genus and 38 species are endemic, and nearly 95% of the taxa grow in the southern and southwestern portions of the country.
Fruit type is highly diversified in the family
, and it is diagnostic of many genera. Genera 1-4 produce
1, 2-celled berries
from a flower; genus 5 produces 2, 1-celled berries from a flower; 6 and 7 produce mostly fleshy
follicles containing deeply indented
seeds with ruminate
endosperm; 8 has follicles and winged
seeds; 9 produces follicles and seeds with 2 comas; 10-12 have follicles with globose
seeds; 13-18 have drupes mostly with fleshy mesocarp; 19 has samaroid
fruit; 20 has spiny
capsules with seeds winged all around; and 21-44 have free or fused follicles and comose
seeds. Double
flowers are known only from cultivated forms of Nerium oleander, Tabernaemontana divaricata, and Wrightia religiosa.
Plants
of the Apocynaceae are often poisonous and are rich in alkaloids or glycosides, especially in the seeds and latex. Some species are valuable sources of medicine, insecticides
, fibers, and rubber.[1]
Genus Apocynum
Herbs perennial
, sometimes shrubs
, latex white. Rhizomes fibrous
. Leaves opposite, rarely alternate, margin
denticulate
. Inflorescences thyrselike, terminal
. Corolla campanulate
or basin-shaped; throat
wide, open; lobes
overlapping to right
. Stamens inserted
at base
of corolla tube
, alternate with corona
lobes; anthers
adherent
to pistil head
; disc scales
fleshy
. Ovary half-inferior; carpels 2, free
; ovules numerous
in each locule. Follicles 2, slender, divaricate
. Seeds numerous, apically comose
; embryo straight, cotyledons as long as radicle.
Nine species: temperate regions
of North America, Europe, and Asia; two species in China.[2]
Physical Description
Habit: Forb/herb
Flowers: Bloom Period: April, May, June. • Flower Color: cream, tan
Size/Age/Growth
Size: 36-48" tall.
Habitat
Typically found at an altitude of 0 to 3,632 meters (0 to 11,916 feet).[3]
Biology
Reproduction
Duration: Perennial
Growth
Culture: Space 24-36" apart.
Sunlight: Sun Exposure: Full Sun .
Temperature: Cold Hardiness: 7b. (map)
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
(
)
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
(
)
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
(
)
- Sinnott, 1935 Ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
(
)
- Infraphylum:
Radiatopses
(
)
- Kenrick & Crane, 1997
- Class:
Magnoliopsida
(
)
- Brongniart, 1843
- Dicotyledons
- Subclass:
Lamiidae
(
)
- Takhtajan Ex Reveal, 1992
- Superorder:
Gentiananae
(
)
- Thorne Ex Reveal, 1992
- Order:
Apocynales
(
)
- Bromhead, 1838
- Family:
Apocynaceae
(
)
- A.l. De Jussieu, 1789
- Dogbane Family
- Subfamily:
Apocynoideae
(
)
- Subfamily:
Apocynoideae
(
- Family:
Apocynaceae
(
- Order:
Apocynales
(
- Superorder:
Gentiananae
(
- Subclass:
Lamiidae
(
- Class:
Magnoliopsida
(
- Infraphylum:
Radiatopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Unambiguous Synonyms
- Apocynum cannabinum var. angustifolium (Woot.) N. Holmgren
- Apocynum cannabinum var. glaberrimum A. Dc.
- Apocynum cannabinum var. greeneanum (Bég. & Bel.) Woods.
- Apocynum cannabinum var. hypericifolium Gray
- Apocynum cannabinum var. nemorale (G. S. Mill.) Fern.
- Apocynum cannabinum var. pubescens (Mitchell Ex R. Br.) Woods.
- Apocynum cannabinum var. suksdorfii (Greene) Bég. & Bel.
- Apocynum hypericifolium Ait.
- Apocynum pubescens Mitchell Ex R. Br.
- Apocynum sibiricum Jacq.
- Apocynum sibiricum var. cordigerum (Greene) Fern.
- Apocynum sibiricum var. farwellii (Greene) Fern.
- Apocynum sibiricum var. salignum (Greene) Fern.
- Apocynum suksdorfii Greene
- Apocynum suksdorfii var. angustifolium (Woot.) Woods.
- Apocynum suskdorfii Greene
- Cynopaema Cannabinum
Notes
Publishing author
: Woodson. Publication
: Ann. Missouri Bot. Gard. 17: 119 1930 Publishing author: Fernald Publication: Rhodora 37: 328 1935 Publishing author: Woodson Publication: N. Amer. Fl.
29: 192 1938 Basionym
author: (Greene) Publishing author: Fernald Publication: Rhodora 37: 327 1935 Publishing author: Bég. & Belosersky. Publication: Atti Reale Accad. Lincei, Mem. Cl. Sci. Fis. 105 1913 Publishing author: A.DC. Publication: Prodr. (DC.) 8: 440 1844 [mid Mar 1844] Basionym author: (R.Br.) Publishing author: Fernald Publication: Rhodora 10: 55 1908 Publishing author: A.Gray Publication: Manual (Gray) 365 1848 Basionym author: (Aiton) Publishing author: Woodson Publication: Ann. Missouri Bot. Gard. 17: 132 1930 Publishing author: A.DC. Publication: Prodr. (DC.) 8: 439 1844 [mid Mar 1844] Publishing author: Aiton Publishing author: R.Br. Publication: in Mem. Wern. Soc. i. (1809) 68 Publishing author: Jacq. Publication: Hort. Vindob. iii. 37 Publishing author: Greene Publication: Pittonia v. 65. Name
Status: Accepted Name
. Latest taxonomic
scrutiny: 15-Mar-2000
Place of publication: Sp.
pl. 1:213. 1753
Name verified on 06-May-1992 by ARS Systematic Botanists. Last updated: 30-Mar-1995
Similar Species
Members of the genus Apocynum
ZipcodeZoo has pages for 185 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:
A. abditum · A. acouci · A. africanum · A. agglomeratum · A. album · A. alterniflorum · A. ambigens · A. andrewsii · A. androsaemifolium (Smooth Mountain Dogbane) · A. androsaemifolium androsaemifolium (Spreading Dogbane) · A. androsaemifolium androsaemifolium var. androsaemifolium (Spreading Dogbane) · A. androsaemifolium detonsum (Spreading Dogbane) · A. androsaemifolium pumilum (Spreading Dogbane) · A. androsaemifolium subsp. detonsum · A. androsaemifolium var. nevadense · A. androsaemifolius · A. angustifolium · A. arcuatum · A. arenarium · A. armenum · A. armenuma · A. austinae · A. basikurumon · A. bebbianum · A. bicolor · A. bolandri · A. breweri · A. bursiflorum · A. calophyllum · A. canariense · A. cannabinum (Clasping-Leaf Dogbane) · A. cannabinum glaberrimum · A. cannabinum hypericifolium · A. cannabinum nemorale · A. cannabinum pubescens · A. cannabinum var. album (Hemp Dogbane) · A. cannabinum var. cannabinum · A. cannabinum var. estellinum · A. cannabinum var. floribundum · A. cannabinum var. incanum · A. cannabinum var. isophyllum · A. cannabinum var. lanceolatum · A. cannabinum var. oliganthum · A. cannabinum var. palustre · A. cannabinum var. puberulum · A. cannabium · A. cannibinum · A. cardiophyllum · A. carolini · A. cercidium · A. cervinum · A. ciliolatum · A. cinereum · A. citrifolium · A. clandestinum · A. coconinum · A. compressum · A. convallarium · A. cordatum (Mangrove Rubbervine) · A. cordifolium · A. cordigerum · A. cotinifolium · A. crassifolium · A. cumanense · A. cuspidatum · A. densiflorum · A. denticulatum · A. detonsum · A. dictyotum · A. dimidiatum · A. divergens · A. diversifolium · A. ellipticum · A. elmeri · A. erectum · A. ericifolium · A. estellinum · A. eximium · A. farwelli · A. farwellii · A. filiforme · A. fimbriatum · A. floribundum (Intermediate Dogbane) · A. floristratum · A. foetidum · A. frutescens · A. glaucum · A. grandiflorum · A. greeneanum · A. griseum · A. hastatum · A. hendersonii · A. hypericifolium · A. hypericifolium var. cordigerum · A. hypericifolium var. oblongum · A. imbricatum · A. incanum · A. indicum · A. insigne · A. isophyllum
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Further Reading
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Notes
Contributors
- Bisby, F.A., Y.R. Roskov, M.A. Ruggiero, T.M. Orrell, L.E. Paglinawan, P.W. Brewer, N. Bailly, J. van Hertum, eds (2007). Species 2000 & ITIS Catalogue of Life: 2007 Annual Checklist. Species 2000: Reading, U.K.
- Global Biodiversity Information Facility. Accessed March 19, 2007. http://www.gbif.org Mediated distribution data from 3 providers.
- Light, Kris. East Tennessee Wildflowers
- The International Plant Names Index. Accessed Jan 19, 2007.
- USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. URL (April 25, 2008)
Data Sources
Accessed through GBIF Data Portal November 12, 2007:
- Missouri Botanical Garden, Missouri Botanical Garden
- Oregon State University, Vascular Plant Collection
- School of Life Sciences, Arizona State University, Arizona State University Vascular Plant Herbarium
- USDA PLANTS, USDA PLANTS Database
- University of Alabama Biodiversity and Systematics, Herbarium
Identifiers
- Biodiversity Heritage Library NamebankID: 2653327
- Catalogue of Life Accepted Name Code: ITS-30157
- Global Biodiversity Information Facility Taxonkey: 13744778
- Globally Unique Identifier: urn:lsid:ipni.org:names:77128-1
- GRIN Nomen Number: 3718
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 30157
- International Plant Names Index (IPNI) ID: 16527-2
- Natural Heritage Network Species Identifier: PDAPO06020
- U.S.D.A. Plant Symbol: APSU
- Zipcode Zoo Species Identifier: 21841
Footnotes
- Bingtao Li, Antony J. M. Leeuwenberg & David J. Middleton "Apocynaceae". in Flora of China Vol. 16 Page 143. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- "Apocynum". in Flora of China Vol. 16 Page 181. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
- Mean = 449.640 meters (1,475.197 feet), Standard Deviation = 519.040 based on 1,082 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
