North Carolina Botanical Garden

Plant Index

Scientific Name:
Common Name:
Genus:
Family:

Juncus roemerianus

Juncus roemerianus Scheele

black needle rush

Image ID: 34576
Image by: SOS, Collectors
Image Collection: Seeds of Success

PLANT INDEX

ID_PLANT: JURO
SCIENTIFIC NAME: Juncus roemerianus
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2018-01-27

GENUS INDEX

GENUS CODE: JUNCU
GENUS SCIENTIFIC: Juncus
GENUS AUTHORITY: L.
GENUS COMMON: Rush
GENUS SUMMARY: (by B.A. Sorrie and W.M. Knapp)
GENUS IDENTIFICATION: Identification Notes: For identification of most rushes, it is important to collect plants with mature capsules and seeds. Stamen number is often a diagnostic character and can be determined after anthesis by counting the number of persistent filaments located behind the tepals. Care must be taken to collect specimens with uninjured heads, especially for the group of rushes in Key D; the long beaks of the capsules are often fragile and easily broken off.
GENUS REFERENCES: Brooks & Clemants in FNA (2000); Kirschner et al. (2002b, 2002c)= Y; Knapp (2014)=X; Bridges & Orzell (2008); Clemants (1990); Balslev in Kubitzki (1998b); Zika (2003)=Z; Dr�bkov� et al. (2003). The key based, in part, on those references.

FAMILY INDEX

FAMILY CODE: JUNCAC
FAMILY SCIENTIFIC: Juncaceae
FAMILY AUTHORITY: A.L. de Jussieu 1789
FAMILY COMMON: Rush Family
FAMILY SUMMARY: A family of about 8 genera and 350-440 species, herbs (and a few shrubs), largely of temperate regions of the Old and New World.
FAMILY REFERENCE: Brooks & Clemants in FNA (2000); Balslev in Kubitzki (1998b); Dr�bkov� et al. (2003).

NCBG DESCRIPTIVES

INTRO:
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT: 1-3 ft.

DURATION: Perennial
HABIT: Grass/Grasslike

LEAF ARRANGEMENT:
LEAF COMPLEXITY:
LEAF RETENTION:

FLORAL CHARACTERISTICS
SYMMETRY:
BLOOM TIME: Jan-Jun

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
x	x	x	x	x	x	x	x	x	x

BLOOM COLOR:

White	Red	Pink	Orange	Yellow	Green	Blue	Lavender	Purple	Violet	Brown	Not Applicable
				x	x

FRUITING PERIOD: May-Oct.

DISTRIBUTION
HABITAT TYPE:
NATIVE RANGE:

HORTICULTURAL
Plant Sale Text:

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Moist/Wet
LIGHT EXPOSURE: Sun, Part Shade
MINIMUM HARDINESS ZONE:
MAXIMUM HARDINESS ZONE:
GERMINATION CODE:
WILDLIFE VALUE: Bird Friendly
DEER RESISTANCE:

GRIM COLLECTIONS

Coll_id	Project	Collection date	Collector	Action
409	SOS	2015-07-07	Maynard	View
645	SOS	2016-06-27	Faucette	View
646	SOS	2016-06-30	Flood	View
648	SOS	2016-07-01	Anthony	View
911	SOS	2017-06-14	Faucette	View
912	SOS	2017-06-20	Dakar	View
914	SOS	2017-06-20	Dakar	View

USDA PLANTS DATABASE

USDA Symbol: JURO
USDA Common Name: Needlegrass Rush
Native Status: L48 (N)
Distribution: USA (AL, DE, FL, GA, LA, MD, MS, NC, SC, TX, VA)
Duration: Perennial
Growth Habit: Graminoid

NATIONAL WETLAND INDICATOR STATUS

Region:	AGCP	AK	AW	CB	EMP	GP	HI	MW	NCNE	WMVE
Status:	OBL				OBL	OBL

This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast

WEAKLEY FLORA

SCIENTIFIC NAME: Juncus roemerianus
COMMON NAME: Black Needle Rush
SYNONYMY: [= C, F, FNA, G, GW, K1, K2, RAB, S, Va, WH3, Y]
PHENOLOGY: Jan-Jun; May-Oct.
HABITAT: Coastal tidal marshes, forming dense stands at and above mean high tide, above the Sporobolus alterniflorus zone.
COMMENTS: MD to s. FL, west to se. TX. See Eleuterius (1977) for additional information on this species.
RANGE MAP: Juncus roemerianus.png

Key to Map Symbols

ABOUT FAMILY (Weakley Flora)
Juncaceae A.L. de Jussieu 1789 (Rush Family)
SUMMARY: A family of about 8 genera and 350-440 species, herbs (and a few shrubs), largely of temperate regions of the Old and New World.
REFERENCE: Brooks & Clemants in FNA (2000); Balslev in Kubitzki (1998b); Dr�bkov� et al. (2003).

ABOUT GENUS (Weakley Flora)
Juncus L. (Rush)
SUMMARY: (by B.A. Sorrie and W.M. Knapp)
REFERENCE: Brooks & Clemants in FNA (2000); Kirschner et al. (2002b, 2002c)= Y; Knapp (2014)=X; Bridges & Orzell (2008); Clemants (1990); Balslev in Kubitzki (1998b); Zika (2003)=Z; Dr�bkov� et al. (2003). The key based, in part, on those references.

HERBARIUM RESOURCES

SERNEC: Find Juncus roemerianus in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Juncus roemerianus in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

WEB RESOURCES

USDA: Find Juncus roemerianus in USDA Plants
NPIN: Find Juncus roemerianus in NPIN Database
FNA: Find Juncus roemerianus in the Flora of North America (if available)
Google: Search Google for Juncus roemerianus

IMAGE USE RECORDS

ID IMAGE: 34576 - Primary Image FloraQuest Plant Detail Page (Landscape Preferred)
ID IMAGE1: 0 - Primary Image WOTAS
ID IMAGE2: 0 - Secondary Image WOTAS
ID IMAGE3: 34576 - Primary Image Plant Sale Sign (Landscape Only)
ID IMAGE4: 0 - Primary Image New Plant Sale Label (Portrait Only)