Plant Index


 
 
 

Triantha racemosa

Triantha racemosa (Walter) Small

southern bog asphodel, coastal false asphodel, coastal plain bog asphodel

Triantha racemosa (Southern Bog Asphodel)
Image ID: 19419
Image by: Stuart, Will
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: TRRA6
SCIENTIFIC NAME: Triantha racemosa
Include in WOTAS: 1
Publish to Web: 1
Last Modified: 2018-02-06

GENUS INDEX

GENUS CODE: TRIAN2
GENUS SCIENTIFIC: Triantha
GENUS AUTHORITY: (Nutt.) Baker
GENUS COMMON: False asphodel
GENUS SUMMARY: A genus of ca. 4 species, herbs, of North America and Japan.
GENUS IDENTIFICATION:
GENUS REFERENCES: Packer in FNA (2002a); Zomlefer (1997c)=Z; Hitchcock (1944)=Y; Cruden (1991).

FAMILY INDEX

FAMILY CODE: TOFIEL
FAMILY SCIENTIFIC: Tofieldiaceae
FAMILY AUTHORITY: Takhtajan 1994
FAMILY COMMON: False-asphodel Family
FAMILY SUMMARY: A family of 4 genera and about 30 species, of disjunct distribution in north temperate and subarctic areas, and in the Guayana Shield and northern Andes areas of n. South America. There is controversy about the circumscription of the genera; Azuma & Tobe (2011) have clarified the phylogeny and generic subscriptions in the family. Some have believed that Tofieldia, Triantha, and Pleea should be treated together in a broadly circumscribed Tofieldia (Utech 1978, Zomlefer 1997c); others that all three should be treated separately (Ambrose 1980; Packer 1993; Cruden 1991). Packer in FNA (2002a) has recently recognized Triantha, Pleea, and Tofieldia as separate genera, a conclusion followed here in part because of the ancient, relictual nature of these units, and additionally supported by the molecular analysis of Azuma & Tobe (2011). Reveal & Zomlefer (1998) place the Tofieldiaceae in the monotypic order Tofieldiales, only distantly related to the Liliaceae. Tamura in Kubitzki (1998a) treats this group as subfamily Tofieldioideae of the Nartheciaceae; this treatment is not tenable following more recent research.
FAMILY REFERENCE: Azuma & Tobe (2011); Zomlefer (1997c, 1999); Tamura in Kubitzki (1998a).

NCBG DESCRIPTIVES

INTRO: Erect, rhizomatous perennial of savannas, savanna-pocosin ecotones, seepage bogs and sinkhole ponds (dolines) in the mountains of VA.
STEMS: Stems scape-like, unbranched and densely covered with granular, rough glands.
LEAVES: Leaves mostly basal, erect, grass-like, to 14 in long and 1/4 in. wide; the few stem leaves are smaller and bract-like.
INFLORESCENCE:
FLOWERS: Flowers on glandular-hairy stalks in a terminal cylindrical cluster, with 3-7 flowers per node (1 per node at top); white (drying orange); about 1/3 in. wide; consisting of 6 spreading, blunt-tipped, oblong-lance to spoon-shaped tepals (the inner series of 3 narrower and longer) and 6 stamens (about as long as tepals) surrounding a greenish-white, 3-celled ovary.
FRUITS: Fruit a 3-celled, oval capsule.
COMMENTS:
HEIGHT: 8-24 in.

DURATION: Perennial
HABIT: Herb

LEAF ARRANGEMENT: Basal
LEAF COMPLEXITY: Simple
LEAF RETENTION:

FLORAL CHARACTERISTICS
SYMMETRY: Radial (Actinomorphic)
BLOOM TIME: Jun-early Aug
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x x x

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

FRUITING PERIOD: Late Sep-Oct.

DISTRIBUTION
HABITAT TYPE: Bogs/pocosins, Pine savannas
NATIVE RANGE: southeastern United States

HORTICULTURAL
Plant Sale Text:

Bloom Table Text:

NCBG Location:

Cultural Notes:

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

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
69 2013-0018 2013-07-01 72 View
391 2011-0282 2011-12-21 395 View
1859 1986-1640 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
72 HORT 2010-12-21 Poythress View
395 HORT 2009-12-08 Poythress View
1153 HORT 2006-10-08 Liloia View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
89 69 64 Liloia 2013-06-18 View
936 391 44 NCBG staff 2011-10-18 View
937 391 48 Mixon 2013-06-01 View
2951 1859 64 NCBG staff 1984-03-11 View

USDA PLANTS DATABASE

USDA Symbol: TRRA6
USDA Common Name: Coastal False Asphodel
Native Status: L48 (N)
Distribution: USA (AL, DE, FL, GA, LA, MD, MS, NC, NJ, SC, TN, TX, VA)
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: Triantha racemosa
COMMON NAME: Southern Bog Asphodel, Coastal Plain Bog Asphodel
SYNONYMY: [= FNA, K, S, Va; = Tofieldia racemosa var. racemosa - RAB; = Tofieldia racemosa (Walter) Britton, Sterns, & Poggenburg - C, F, G, GW, W, WH3, Z]
PHENOLOGY: Jun-early Aug; late Sep-Oct.
HABITAT: Savannas, savanna-pocosin ecotones, seepage bogs, sinkhole ponds (dolines) in the mountains of VA.
COMMENTS: NJ south to nw. FL, west to e. TX; disjunct in c. TN. The NJ populations are anomalous (as discussed by Packer in FNA 2002a) and are under taxonomic investigation by Sasha Eisenman.
RANGE MAP: Triantha racemosa.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Tofieldiaceae Takhtajan 1994 (False-asphodel Family)
SUMMARY: A family of 4 genera and about 30 species, of disjunct distribution in north temperate and subarctic areas, and in the Guayana Shield and northern Andes areas of n. South America. There is controversy about the circumscription of the genera; Azuma & Tobe (2011) have clarified the phylogeny and generic subscriptions in the family. Some have believed that Tofieldia, Triantha, and Pleea should be treated together in a broadly circumscribed Tofieldia (Utech 1978, Zomlefer 1997c); others that all three should be treated separately (Ambrose 1980; Packer 1993; Cruden 1991). Packer in FNA (2002a) has recently recognized Triantha, Pleea, and Tofieldia as separate genera, a conclusion followed here in part because of the ancient, relictual nature of these units, and additionally supported by the molecular analysis of Azuma & Tobe (2011). Reveal & Zomlefer (1998) place the Tofieldiaceae in the monotypic order Tofieldiales, only distantly related to the Liliaceae. Tamura in Kubitzki (1998a) treats this group as subfamily Tofieldioideae of the Nartheciaceae; this treatment is not tenable following more recent research.
REFERENCE: Azuma & Tobe (2011); Zomlefer (1997c, 1999); Tamura in Kubitzki (1998a).
ABOUT GENUS (Weakley Flora)
Triantha (Nutt.) Baker (False asphodel)
SUMMARY: A genus of ca. 4 species, herbs, of North America and Japan.
REFERENCE: Packer in FNA (2002a); Zomlefer (1997c)=Z; Hitchcock (1944)=Y; Cruden (1991).

HERBARIUM RESOURCES

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

WEB RESOURCES

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

NCBG IMAGE RECORDS

ID IMAGE1: 19419
ID IMAGE2: 0
ID IMAGE3: 19419

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14 photo(s) available in the Image Gallery

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