Flora of New York/Rhamnaceae … Urticaceae


Amygdaloideae 2
Flora of New York — Rosales: Rhamnaceae … Urticaceae
Cucurbitales
Table of
contents
Genus
index
Protected species index Invasive species index


The first pair of Rosales families on this page (Rhamnaceae and Elaeagnaceae) contain several small trees and shrubs that are particularly invasive in many parts of New York. These include the autumn olive, Russian olive, common buckthorn, and glossy buckthorn.

Family RhamnaceaeEdit

The Rhamnaceae (buckthorn family) in New York contains three species of native shrubs (two New Jersey tea and one buckthorn species). It also contains two highly invasive non-native buckthorns, both of which are prohibited in New York.[1][2]
  1. Rhamnaceae Troy Weldy & David Werier (2013) New York Flora Atlas. New York Flora Association, Albany, New York.
  2. Rhamnaceae P. F. Stevens (2001 onwards). Angiosperm Phylogeny Website. Version 12, July 2012.

Subfamily RhamnoideaeEdit

Tribe RhamneaeEdit

Besides the two highly invasive exotic buckthorn species, the Rhamneae tribe contains the native alder-leaved buckthorn.
RhamnusEdit
 
Native alder-leaved buckthorn (Rhamnus alnifolia).

The native alder-leaved buckthorn (Rhamnus alnifolia or Endotropis alnifolia)[1][2] should not be confused with the invasive exotic "glossy buckthorn" (Frangula alnus), which also goes by the similar common name "alder buckthorn."

The two non-native buckthorns Rhamnus davurica and Rhamnus utilis have not been reported as naturalized in New York, but they have been reported outside of cultivation in neighboring states.


Rosales — Rhamnaceae — Rhamnoideae — Rhamneae — Rhamnus
Rhamnus Buckthorn N.Y. Status Images Distribution NY NPT
 L’Hér.

1789. Rhamnus alnifolius L’Hér.
1915. Apetlorhamnus alnifolia Nieuwl.
2016. Ventia alnifolia
(L'Hér.) Hauenschild (superfl.)
2016. Endotropis alnifolia
(L’Hér.) Hauenschild
Alder-leaved buckthorn,
American alder buckthorn,
Dwarf alder,
Swamp buckthorn
Nerprun à feuilles d'aulne,
Nerprun des marécages
Native, CoC: 9,
Likely secure,
NSE: S4, G5

OBL

Perennial,
Shrub,
Part shade - shade
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 L.

1753. Rhamnus catharticus L.
European buckthorn,
Common buckthorn,
Purging buckthorn,
European waythorn
Nerprun cathartique,
Nerprun purgatif,
Épine noire
Introduced from
 Eurasia, n. Africa,
Very highly invasive,
 NYIS: 80%[1],
 Invasive.org: [1],
CP-2[2] NE-1[3],
Prohibited[4],
WW,
NSE: Exotic, GNR
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Rhamnus (excluded taxa) Buckthorn N.Y. Status Images Distribution NY NPT
 Pall.

1776. Rhamnus dauuricus Pall.
1866. R. cathartica var. dahurica Maxim.
Dahurian buckthorn
Nerprun de Daourie
Introduced from
 Siberia, China, Japan,
No specimens,
CT, MA, PA, VT, PE
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 Decne.

1857. Rhamnus utilis Decne.
Chinese buckthorn
Vert de Chine
Introduced from
 Asia,
No specimens,
 Invasive.org: [2],
CT, MI, OH, IN, IL
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FrangulaEdit
 
Invasive Frangula alnus
Glossy buckthorn
The only Frangula species reported in the wild in New York is glossy buckthorn (Frangula alnus), which is an Old World species that is considered highly invasive and is prohibited in New York. Frangula alnus is sometimes known as "alder buckthorn" and as noted above, should not be confused with the native Rhamnus alnifolia.

The seven or so North American Frangula species have not been reported in New York, but Carolina buckthorn and perhaps others may be able to survive cultivation in parts of the state.


Rosales — Rhamnaceae — Rhamnoideae — Rhamneae — Frangula
Frangula Glossy buckthorn N.Y. Status Images Distribution NY NPT
 Mill.

1753. Rhamnus frangula L.
1768. Frangula alnus Mill.
Glossy buckthorn,
Glossy false buckthorn,
Smooth buckthorn,
Alder buckthorn
Introduced from
 Eurasia, n. Africa,
Highly invasive,
 NYIS: 73%[1],
iMapInvasives,
 Invasive.org: [3],
CP-2[2] NE-1[3],
Prohibited[4],
WW,
NSE: Exotic GNR
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    Rhamnus caroliniana Walter
    Rhamnus caroliniana var. mollis Fernald
    
Carolina buckthorn

N. America native
 southern US,
Not listed,
NSE: S0, G5

FAC

Perennial,
Tree-shrub
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Subfamily ZiziphoideaeEdit

Tribe PomaderreaeEdit

CeanothusEdit
 
Ceanothus americanus
New Jersey tea (Ceanothus americanus) is a low shrub of forest edges.
Rosales — Rhamnaceae — Ziziphoideae — Pomaderreae — Ceanothus
Ceanothus New Jersey tea N.Y. Status Images Distribution NY NPT

    Ceanothus intermedius
New Jersey tea,
Indian tea,
Wild snowball,
Redroot,
Snowbrush,
Soapbloom,
Mountainsweet
Native, CoC: 7,
Secure,
S5-G5

Perennial,
Shrub,
Part shade — shade
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Jersey tea,
Inland New Jersey tea,
Prairie redroot,
Grub root
Native,
Endangered

Perennial,
Shrub
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Family ElaeagnaceaeEdit

The Elaeagnaceae (oleaster family)...[1]

ShepherdiaEdit

Rosales — Elaeagnaceae — Shepherdia
Shepherdia Buffalo berry N.Y. Status Images Distribution  NPT

Canada buffalo-berry,
Russet buffaloberry
Native,
Likely secure
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 (Pursh) Nutt.

1813. Hippophae argentea Pursh
1818. Shepherdia argentea (Pursh) Nutt.
1890. Lepargyrea argentea (Pursh) Greene
Silver buffalo-berry,
Silver buffaloberry
Introduced from
 w. N. America
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  1. Elaeagnaceae Troy Weldy & David Werier (2013) New York Flora Atlas. New York Flora Association, Albany, New York.

ElaeagnusEdit

 
Elaeagnus umbellata
Autumn olive (Elaeagnus umbellata) commonly naturalizes and becomes invasive through much of New York State, while Russian olive (Elaeagnus angustifolia) does so on a much more limited basis.

Autumn olive has been shown to affect soil microbial communities even when it is present in relatively low densities.[1]


Rosales — Elaeagnaceae — Elaeagnus
ElaeagnusHill Silver-berry N.Y. Status Images Distribution NY NPT
 Thunb.

1784. Elaeagnus umbellata Thunb.
1784. E. crispa Thunb.
1836. E. parvifolia Wall. ex Royle
1909. E. umbellata var. parvifolia C.K.Schneid.
Autumn olive,
Autumn elaeagnus,
Spreading oleaster
Oléastre à ombelles,
Chalef en ombelles
Introduced from
 Asia,
Very highly invasive,
 NYIS: 94%[1],
 Invasive.org: [4],
CP-2[2] NE-1[3]
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 L.

1753. Elaeagnus angustifolia L.
1767. E. orientalis L.
1808. E. hortensis M.Bieb.
1857. E. moorcroftii Wall. ex Schltdl.
1887. E. angustifolia var. orientalis Kuntze
Russian olive,
Russian elaeagnus,
Silver-berry,
Oleaster,
Trebizond-date
Olivier de Bohême
Introduced from
 Eurasia,
Moderately invasive,
 NYIS: 68%[4],
 Invasive.org: [5],
CP-5[5] NE-1[3]
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 Thunb.

1784. Elaeagnus multiflora Thunb.
1859. Elaeagnus longipes A.Gray
Cherry silverberry,
Cherry elaeagnus,
Cherry oleaster
Goumi
Introduced from
 temperate Asia,
 Invasive.org: [6]
  NYFA: Livingston (1969)
iNat: none (2021)
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 Thunb.

1784. Elaeagnus pungens Thunb.
1869. Elaeagnus simonii Carrière
1949. E. pungens var. simonii Rehder
Thorny-olive,
Thorny elaeagnus,
Spiny oleaster
Introduced from
 China & Japan,
No NY reports,
 Invasive.org: [7]
  iNat: Suffolk (2020) NYFA-0
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 Bernh. ex Rydb.

1814. Elaeagnus argentea Pursh (nom. illeg.)
1917. E. commutata Bernh. ex Rydb.
1955. E. veteris-castelli Lepage
Silverberry,
American silverberry,
Wolf-willow
Chalef argenté,
Chalef changeant
Introduced from
 western US,
 n. central US,
 Canada,
N. America native,
No NY reports
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  1. New York non-native plant invasiveness assessmentElaeagnus umbellata: Very high (94). M.J.Jordan, G.Moore & T.W.Weldy (2008). Invasiveness ranking system for non-native plants of New York. Unpublished. The Nature Conservancy, Albany & Cold Spring Harbor, NY; Brooklyn Botanic Garden, Brooklyn, NY.
  2. Appendix 2. Plant species that are considered highly invasive to natural areas in the central Finger Lakes region. Policy on the use of non-native plants in Cornell Botanic Gardens' accessioned collections (2018)
  3. a b Category 1 Plants - highly invasive - Eastern Region invasive plants, ranked by degree of invasiveness as based on information from States (1998) US Forest Service
  4. New York non-native plant invasiveness assessmentElaeagnus angustifolia: Moderate (68).
  5. Appendix 5. Plant species of concern (Watch List) within the central Finger Lakes region. Policy on the use of non-native plants in Cornell Botanic Gardens' accessioned collections (2018)

Family UlmaceaeEdit

The Ulmaceae (elm family)...[1]

UlmusEdit

Rosales — Ulmaceae — Ulmus
Ulmus Elm N.Y. Status Images Distribution NY NPT
 L.

1753. Ulmus americana L.
1860. U. americana var. aspera Chapm.
1860. U. floridana Chapm.
1953. U. americana var. floridana Little
American elm,
White elm
Orme d'Amérique,
Orme blanc
Native,
Secure
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Muhl.

1785. U. americana Marshall (i)
1788. U. pubescens Walter
1789. U. americana var. rubra (Muhl.) Aiton
1793. U. rubra Muhl.
1796. U. pendula Willd.
1803. U. fulva Michx.
1809. U. crispa Willd.
Slippery elm,
Red elm
Orme rouge,
Orme gras
Native,
Secure
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 Sarg.

1831. U. racemosa D.Thomasnon Borkh. (1800)
1902. U. thomasi(i) Sarg.
Rock elm,
Cork elm,
Hickory elm
Orme liège,
Orme de Thomas
Native,
Threatened
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Siberian elm Introduced from
 temperate Asia,
Moderately invasive,
 NYIS: 53%[2],
CP-5[3]
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 Huds.

Wych elm,
Scotch elm,
Broadleaf elm,
Broad-leaved elm,
European mountain elm
Orme de montagne,
Orme montagnard,
Orme glabre,
Orme blanc,
Orme rude
Introduced from
 Eurasia,
Unk. naturalization
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Salisb.

1753. Ulmus campestris L. p.p. (i)
1796. Ulmus procera Salisb.
 auct. Ulmus minornon Mill.[4]
 auct. Ulmus carpinifolianon Ruppius ex G.Suckow
English elm,
English cork elm
Grand orme,
Orme rouge,
Orme champêtre
Introduced from
 Europe,
 northern Africa,
Not naturalized
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Ulmus (excluded taxa) Elm N.Y. Status Images Distribution NY NPT
Mill.

1768. Ulmus minor Mill.
European field elm Introduced from
 Eurasia,
 northern Africa,
N.Y. excluded
  NYFA-Excluded
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 Jacq.

1798. Ulmus parvifolia Jacq.
1914. Ulmus sieboldii Daveau
Lacebark elm,
Chinese elm
Introduced from
 Asia,
Potentially invasive,
Excluded
  NYFA-Excluded
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Ulmus glabra ×
Ulmus procera

    
Hybrid of
 wych elm &
 English elm
Introduced from
 Eurasian parents,
N.Y. excluded
  NYFA-Excluded
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Family CannabaceaeEdit

The Cannabaceae (hemp family)...[1]
  1. Cannabaceae Troy Weldy & David Werier (2013) New York Flora Atlas. New York Flora Association, Albany, New York.

CeltisEdit

Celtis (hackberry) was formerly included under Ulmaceae (above), but is now more likely to be included under Cannabaceae or in its own family.
Rosales — Cannabaceae — Celtis
Celtis Hackberry N.Y. Status Images Distribution NY NPT
 L.

1753. Celtis occidentalis L.
1797. Celtis crassifolia Lam.
1856. C. occidentalis var. crassifolia (Lam.) A. Gray
1919. C. occidentalis var. canina (Raf.) Sarg.
Northern hackberry,
American hackberry,
Common hackberry,
Beaverwood,
Nettletree
Micocoulier occidental,
Bois inconnu
Native, CoC: 7,
Likely secure

FACU

Perennial,
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 Nutt.

1814. Celtis pumila Pursh
1818. C. tenuifolia Nutt.
1856. C. occidentalis var. pumila (Pursh) A.Gray
1897. C. georgiana Small
1902. C. pumila var. georgiana Sarg.
1902. C. mississippiensis var. pumila (Pursh) Mack. & Bush
1919. C. pumila var. georgiana Sarg.
1964. C. occidentalis var. georgiana H.E.Ahles
1967. C. tenuifolia var. soperi B.Boivin
1969. C. occidentalis fo. pumila (Pursh) F.Seym.
1982. C. occidentalis ssp. georgiana A.E.Murray
Dwarf hackberry,
Upland hackberry,
Georgia hackberry
Micocoulier rabougri,
Micocoulier de Soper,
Micocoulier de Géorgie
Native, CoC: 9,
No specimens
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HumulusEdit

 
Humulus lupulus var. lupuloides
Northeastern hops
At least two species of wild hops are present in New York, depending on how they are recognized taxonomically. Of the three varieties of common hops (Humulus lupulus) found in New York, two (var. lupuloides and var pubescens) are considered native and one (var. lupulus) is European. A fourth variety (var. neomexicanus) is also native to North America but has not been reported in the wild in New York. Although similar in appearance, based on molecular and morphological studies, these four varieties can also be treated as separate species (H. lupuloides, H. pubescens, H. neomexicana, and H. lupulus s.s.).[1][2]
Rosales — Cannabaceae — Humulus
Humulus Hops N.Y. Status Images Distribution NY NPT
 L.
var. lupuloides E.Small

1847. Humulus americanus Nutt.
1978. H. lupulus var. lupuloides E.Small
1982. H. lupulus ssp. americanus (Nutt.) Á.&D.Löve
2016. H. lupuloides (E.Small) Tembrock
Northeastern hops
American hop
Common hop

Houblon lupuloïde
Native, CoC: 5,
Likely secure

Perennial,
Herb-vine
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 L.
var. pubescens E.Small

1978. H. lupulus var. pubescens E.Small
2016. H. pubescens (E.Small) Tembrock
Midwestern hops,
Pubescent hop,
Common hop
Native, CoC: 10,
Rare

Perennial,
Herb-vine
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 L.
var. lupulus

1753. Humulus lupulus L.
European hop,
Common hop
Houblon commun,
Houblon grimpant
Introduced from
 Eurasia,
 Morocco,
Naturalized,
NE5[1]

Perennial,
Herb-vine
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 Siebold & Zucc.

1790. Antidesma scandens Lour.
1846. Humulus japonicus Siebold & Zucc.
1935. Humulus scandens (Lour.) Merr.
1988. Humulopsis scandens (Lour.) Grudz.
Japanese hops,
Japanese hop
Houblon japonais
Introduced from
 eastern Asia,
Highly invasive,
 NYIS: 74%[2],
NE4[3]
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  1. Category 5 Plants - native invasives - Eastern Region invasive plants, ranked by degree of invasiveness as based on information from States (1998) US Forest Service
  2. New York non-native plant invasiveness assessmentHumulus japonicus: High (74).
  3. Category 4 Plants - local concern and monitoring - Eastern Region invasive plants, ranked by degree of invasiveness as based on information from States (1998) US Forest Service

CannabisEdit

Rosales — Cannabaceae — Cannabis
Cannabis Hemp N.Y. Status Images Distribution NY NPT
 L.

1753. Cannabis sativa L.
1785. Cannabis indica Lam.
1924. Cannabis ruderalis Janisch.
1976. C. sativa ssp. indica E.Small & Cronquist
Hemp,
Marijuana,
Pot
Introduced from
 central Asia
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Family MoraceaeEdit

The Moraceae (mulberry or fig family)...[1]

Tribe MoreaeEdit

MorusEdit

 
Morus rubra
red mulberry fruit
Of the dozen-or-so species of mulberry trees found worldwide, two have been found in the wild in New York. The red mulberry (Morus rubra) is native to eastern North America, including New York, and the white mulberry (Morus alba, the primary host for silkmoth caterpillars) was introduced from eastern Asia and is known to escape cultivation. M. alba is considered to be invasive in Mid-Atlantic states.[2]
Rosales — Moraceae — Moreae — Morus
Morus Mulberry N.Y. Status Images Distribution NY NPT
 L.

1753. Morus rubra L.
1873. Morus rubra var. tomentosa
1873. Morus rubra var. rubra
Red mulberry,
American mulberry
Mûrier rouge
Native, CoC: 8,
Secure

FACU

Perennial,
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 L.

1753. Morus alba L.
1753. Morus tatarica L.
1855. Morus alba var. tatarica
White mulberry,
Russian mulberry,
Silkworm mulberry
Mûrier blanc
Introduced from
 China,
Moderately invasive,
 NYIS: 69%[1]
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Morus (excluded taxa) Mulberry N.Y. Status Images Distribution NY NPT
L.

1753. Morus nigra L.
Black Mulberry Introduced from
 Asia,
N.Y. excluded
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BroussonetiaEdit

Rosales — Moraceae — Moreae — Broussonetia
Broussonetia Paper mulberry N.Y. Status Images Distribution NY NPT
 (L.) L'Hér. ex Vent.

1753. Morus papyrifera L.
1799. B. papyrifera (L.) L'Hér. ex Vent.
1891. Papyrius papyriferus (L.) Kuntze
Paper mulberry,
Tapa-cloth-tree
Mûrier à papier
Introduced from
 Asia (temp & trop),
Highly invasive,
 NYIS Tier: 3,
 Invasive.org: [8],
Naturalized

Perennial,
Tree
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FatouaEdit

Rosales — Moraceae — Moreae — Fatoua
Fatoua Crabweed N.Y. Status Images Distribution NY NPT
 (Thunb.) Nakai

1784. Urtica japonica Thunb. non L.f. 1782
1784. Urtica villosa Thunb.
1856. Fatoua japonica (Thunb.) Blume nom. illeg.
1927. Fatoua villosa (Thunb.) Nakai
Mulberry-weed,
Hairy crabweed
Introduced from
 Japan & Taiwan,
Potentially invasive,
 Invasive.org: [9],
Naturalized,
NSE: GNR

FAC

Annual,
Herb-forb
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Tribe MaclureaeEdit

MacluraEdit

 
Maclura pomifera
Maclura pomifera (osage-orange) is a shrub or small tree that has been widely cultivated throughout the continental U.S., but it is considered to be native only to southwestern Arkansas, southeastern Oklahoma, and Texas. It has been cultivated in New York, but only occasionally naturalizes.
Rosales — Moraceae — Maclureae — Maclura
Maclura Maclura N.Y. Status Images Distribution NY NPT
 (Raf.) C.K.Schneid.

1817. Ioxylon pomiferum Raf.
1817. Toxylon pomiferum Raf.
1828. Toxylon aurantiacum (Nutt.) Raf.
1906. Maclura pomifera (Raf.) C.K.Schneid.
Osage-orange,
Hedge-apple,
Bow-wood,
Bodoark
Bois d'arc
Introduced from
 TX, OK, AR,
N. America native,
Naturalized

Perennial,
Shrub, tree
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Tribe FiceaeEdit

FicusEdit

Rosales — Moraceae — Ficeae — Ficus
Ficus Fig N.Y. Status Images Distribution NY NPT
 L.

1753. Ficus carica L.
Common fig,
Edible fig
Introduced,
Impersistent
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USDA-XX
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Family UrticaceaeEdit

The Urticaceae (nettle family)...[1]

Subfamily UrticoideaeEdit

Tribe UrticeaeEdit

LaporteaEdit
Rosales — Urticaceae — Urticoideae — Urticeae — Laportea
Laportea Wood nettle N.Y. Status Images Distribution NY NPT
 (L.) Wedd.

1753. Urtica canadensis L.
1826. Laportea canadensis (L.) Gaudich.
1849. Fleurya canadensis (L.) Benth.
1854. Laportea canadensis (L.) Weddell
1891. Urticastrum divaricatum (L.) Kuntze
Canada wood nettle,
Canada nettle,
Wood-nettle,
Canadian woodnettle
Laportéa du Canada,
Ortie des bois,
Ortie du Canada
Native,
Secure
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  1. Urticaceae Troy Weldy & David Werier (2013) New York Flora Atlas. New York Flora Association, Albany, New York.
UrticaEdit
 
Urtica gracilis ssp. gracilis
Many sources treat Urtica gracilis, the American stinging nettle, as a subspecies of Urtica dioica, which contains the European stinging nettle. Henning et al. (2014) proposed the transfer of the North American U. dioica subtaxa to U. gracilis, the holotype of which was collected on the Hudson Bay.[1]

U. gracilis differs from U. dioica in that the native plant is monoecious and has a less dense population of stinging hairs than the European species.


Rosales — Urticaceae — Urticoideae — Urticeae — Urtica
Urtica Nettle N.Y. Status Images Distribution NY NPT
 Aiton
ssp. gracilis

1789. Urtica gracilis Aiton
1805. Urtica procera Muhl. ex Willd.
1856. Urtica dioica var. procera (Muhl. ex Willd.) Wedd.
1875. Urtica lyallii S.Watson
1889. Urtica californica Greene
1912. Urtica viridis Rydb.
1947. Urtica dioica ssp. gracilis (Aiton) Selander
American stinging nettle,
California nettle,
California stinging nettle,
California nettle,
Slender stalked nettle
Native, CoC: 2,
Secure
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 L.
ssp. dioica

1753. Urtica dioica L.
1869. Urtica dioica var. vulgaris
    
European stinging nettle
Ortie dioïque,
Grande ortie
Introduced,
Highly invasive,
NYS Tier 5[1],
Naturalized,
SNA, G5-T5?

FAC-FACU

Perennial,
Herb-forb
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 L.

Burning nettle,
Dog nettle
Introduced   NYFA-X
USDA-XX
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 Pursh

Weak nettle,
Red nettle,
Heart-leaved nettle
Introduced,
US South native
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Tribe LecantheaeEdit

PileaEdit

Rosales — Urticaceae — Urticoideae — Lecantheae — Pilea
Pilea Clearweed N.Y. Status Images Distribution NY NPT
 (L.) A. Gray
var. pumila

1753. Urtica pumila L.
1848. Pilea pumila (L.) A. Gray
Green-fruited clearweed,
Canadian clearweed,
Coolwort,
Richweed
Piléa nain,
Pilée naine,
Ortie naine,
Petite ortie
Native, CoC: 2,
Secure
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 (Lunell) Rydb.

1843. Adicea pumila Raf.
1913. Adicea fontana Lunell
1913. Adicea opaca Lunell
1931. Pilea fontana (Lunell) Rydb.
1931. Pilea opaca (Lunell) Rydb.
Black-fruited clearweed,
Lesser clearweed,
Spring clearweed,
Springs clearweed
Piléa des fontaines
Native, CoC: 6,
Secure
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Pilea fontana × pumila

Pilea fontana ×
Pilea pumila

Hybrid clearweed Native,
N.Y. excluded
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Tribe BoehmerieaeEdit

BoehmeriaEdit
 
Boehmeria cylindrica
false nettle
Native false nettle is common in wet shady locations
Rosales — Urticaceae — Urticoideae — Boehmerieae — Boehmeria
Boehmeria False nettle N.Y. Status Images Distribution NY NPT
 (L.) Sw.

1753. Urtica cylindrica L.
1788. Boehmeria cylindrica (L.) Sw.
1805. Boehmeria cylindrica (L.) Willd.
False nettle
Smallspike false nettle
Bog hemp

Boehméria cylindrique,
Fausse ortie cylindrique,
Ortie de savanne
Native, CoC: 7,
Secure

FACW-OBL

Perennial,
Herb-forb
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Tribe ParietarieaeEdit

ParietariaEdit
Rosales — Urticaceae — Urticoideae — Parietarieae
Parietaria Pellitory N.Y. Status Images Distribution NY NPT

1806. P. pensylvanica Muhl. ex Willd.
1857. P. debilis var. pensylvanica
1903. P. obtusa Rydb. ex Small
1912. P. occidentalis Rydb.
1941. Freirea pensylvanica (Muhl. ex Willd.) Jarm.
1950. P. pensylvanica var. obtusa
Pennsylvania pellitory,
Pennsylvania cucumber plant
Native, CoC: 2,
Secure
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 L.

    Parietaria judaica L.
    Parietaria diffusa
    
Spreading pellitory Introduced from
 s. Europe,
 n. Africa,
Impersistent
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