Plant Index


 
 
 

Iris tridentata

Iris tridentata Pursh

savanna iris

Synonym(s): Iris tripetala
Iris tridentata (Savanna Iris)
Image ID: 17873
Image by: Sorrie, Bruce A.
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: IRTR
SCIENTIFIC NAME: Iris tridentata
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2018-01-09

GENUS INDEX

GENUS CODE: IRIS
GENUS SCIENTIFIC: Iris
GENUS AUTHORITY: L.
GENUS COMMON: Iris
GENUS SUMMARY: A genus of about 225 species, herbs, of Eurasia, n. Africa, and North America. Wilson (2004) suggests that Belamcanda is phylogenetically nested within Iris and should be included there; Goldblatt & Mabberley (2005) make the appropriate nomenclatural combination. Alternatively, Iris may be broken up into multiple genera (Mavrodiev et al. 2014; Crespo, Martínez-Azorín, & Mavrodiev 2015).
GENUS IDENTIFICATION: Identification notes: the petals are usually erect, smaller than the petaloid sepals (which are brightly colored, generally reflexed, and marked with a signal). The styles are also petaloid, arched over the sepals, and 2-cleft at the tip (except in I. domestica).
GENUS REFERENCES: Crespo, Martínez-Azorín, & Mavrodiev (2015); Henderson in FNA (2002a); Goldblatt in FNA (2002a); Mavrodiev et al. (2014); Goldblatt & Mabberley (2005)=Z; Wilson (2004); Goldblatt, Manning, & Rudall in Kubitzki (1998a). Key based on Henderson in FNA (2002a).

FAMILY INDEX

FAMILY CODE: IRIDAC
FAMILY SCIENTIFIC: Iridaceae
FAMILY AUTHORITY: A.L. de Jussieu 1789
FAMILY COMMON: Iris Family
FAMILY SUMMARY: A family of about 65-82 genera and 1700-1810 species, herbs, of cosmopolitan distribution (most diverse in s. Africa).
FAMILY REFERENCE: Goldblatt in FNA (2002a); Goldblatt, Manning, & Rudall in Kubitzki (1998a).

NCBG DESCRIPTIVES

INTRO:
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT: 12-28 inches

DURATION: Perennial
HABIT: Herb

LEAF ARRANGEMENT:
LEAF COMPLEXITY:
LEAF RETENTION:

FLORAL CHARACTERISTICS
SYMMETRY:
BLOOM TIME: Late May-Jun
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x

BLOOM COLOR: Blue-violet flowers
White Red Pink Orange Yellow Green Blue Lavender Purple Violet Brown Not Applicable
x x x x x x

FRUITING PERIOD: Aug-Oct.

DISTRIBUTION
HABITAT TYPE:
NATIVE RANGE: southeastern United States

HORTICULTURAL
Plant Sale Text: Savannah iris is a late blooming iris often found growing in swamps and wetlands in the coastal plan and is perfect for a bog garden. The sepals are widely spreading and then arching downward with prominent dark purple veins and a white to yellow signal.  During the winter period, depending on the severity of the winter, the leaves generally die, to re-grow next spring. When new plants are planted they take a year to settle in before flowering.

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Moist/Wet
LIGHT EXPOSURE: Sun, Part Shade
MINIMUM HARDINESS ZONE: 6
MAXIMUM HARDINESS ZONE: 10
GERMINATION CODE: 2
WILDLIFE VALUE: Bee Friendly
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
61 2013-0009 2013-05-06 64 View
341 2011-0210 2011-10-19 345 View
1954 1986-1742 View
7948 2002-0099 2007-07-25 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
64 HORT 2008-12-01 Walker View
345 HORT 2010-12-31 Poythress View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
80 61 32 Mixon 2012-03-28 View
831 341 44 NCBG staff 2011-10-18 View
3118 1954 64 NCBG staff 1984-03-11 View
11190 7948 64 NCBG staff 2007-05-21 View

USDA PLANTS DATABASE

USDA Symbol: IRTR
USDA Common Name: Savannah Iris
Native Status: L48 (N)
Distribution: USA (FL, GA, NC, SC, TN)
Duration: Perennial
Growth Habit: Forb/herb

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: 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: Iris tridentata
COMMON NAME: Savanna Iris
SYNONYMY: [= FNA, GW, K, RAB, Tn, WH3; ? I. tripetala - S, misapplied; = Limniris tridentata (Pursh) Rodionenko - Y]
PHENOLOGY: Late May-Jun; Aug-Oct.
HABITAT: Wet savannas, pine flatwoods, margins of pineland pools.
COMMENTS: Se. NC south to ne. FL and Panhandle FL and AL (Mobile County); allegedly disjunct in the southern Eastern Highland Rim of TN.
RANGE MAP: Iris tridentata.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Iridaceae A.L. de Jussieu 1789 (Iris Family)
SUMMARY: A family of about 65-82 genera and 1700-1810 species, herbs, of cosmopolitan distribution (most diverse in s. Africa).
REFERENCE: Goldblatt in FNA (2002a); Goldblatt, Manning, & Rudall in Kubitzki (1998a).
ABOUT GENUS (Weakley Flora)
Iris L. (Iris)
SUMMARY: A genus of about 225 species, herbs, of Eurasia, n. Africa, and North America. Wilson (2004) suggests that Belamcanda is phylogenetically nested within Iris and should be included there; Goldblatt & Mabberley (2005) make the appropriate nomenclatural combination. Alternatively, Iris may be broken up into multiple genera (Mavrodiev et al. 2014; Crespo, Martínez-Azorín, & Mavrodiev 2015).
REFERENCE: Crespo, Martínez-Azorín, & Mavrodiev (2015); Henderson in FNA (2002a); Goldblatt in FNA (2002a); Mavrodiev et al. (2014); Goldblatt & Mabberley (2005)=Z; Wilson (2004); Goldblatt, Manning, & Rudall in Kubitzki (1998a). Key based on Henderson in FNA (2002a).

HERBARIUM RESOURCES

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

WEB RESOURCES

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

NCBG IMAGE RECORDS

ID IMAGE1: 17873
ID IMAGE2: 8473
ID IMAGE3: 21609

From the Image Gallery


Image ID: 8473

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Image ID: 21612

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Image ID: 29438

Image ID: 21608
14 photo(s) available in the Image Gallery

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