Plant Index


 
 
 

Silphium terebinthinaceum

Silphium terebinthinaceum Jacq.

prairie rosinweed, prairie-dock

Silphium terebinthinaceum (Prairie Rosinweed)
Image ID: 9581
Image by: Ware, Richard & Teresa
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: SITE
SCIENTIFIC NAME: Silphium terebinthinaceum
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2019-01-23

GENUS INDEX

GENUS CODE: SILPH
GENUS SCIENTIFIC: Silphium
GENUS AUTHORITY: L.
GENUS COMMON: Rosinweed
GENUS SUMMARY: A genus of 20-30 species, herbs, of e. North America.
GENUS IDENTIFICATION: Identification notes: The number of ray flowers per head is a useful taxonomic character in Silphium; since only ray flowers are fertile, the number of ray flowers can also be estimated by the number of achenes in freshly fruiting material. The key and taxonomic treatment is provisional.
GENUS REFERENCES: Sweeney (1970)=Z; Perry (1937)=Y; Clevinger in FNA (2006c); Clevinger (2004)=X; Cronquist (1980)=SE; Cruden (1962); Medley (1989); Steyermark (1951).

FAMILY INDEX

FAMILY CODE: ASTERA
FAMILY SCIENTIFIC: Asteraceae
FAMILY AUTHORITY: Dumortier 1822 or COMPOSITAE Giseke 1792
FAMILY COMMON: Aster Family
FAMILY SUMMARY: A family of about 1500-1700 genera and 20,000-25,000 species, shrubs, herbs, trees, and vines, cosmopolitan in distribution.
FAMILY REFERENCE: Cronquist (1980)=SE throughout family treatment.

NCBG DESCRIPTIVES

INTRO:
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT:

DURATION: Perennial
HABIT: Herb

LEAF ARRANGEMENT:
LEAF COMPLEXITY:
LEAF RETENTION:

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

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

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE:
NATIVE RANGE: central North America

HORTICULTURAL
Plant Sale Text:

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Dry
LIGHT EXPOSURE: Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE:
MAXIMUM HARDINESS ZONE:
GERMINATION CODE:
WILDLIFE VALUE:
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
364 2011-0236 2011-11-29 368 View
5507 1995-0630 View
8439 2005-0513 2005-12-20 View
9020 1996-0202 0000-00-00 1620 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
368 HORT Poythress View
1375 HORT 2006-10-14 Bryan View
1555 HORT 2005-03-08 Bryan View
1620 HORT 1996-11-12 Gardner View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
885 364 23 Steen 2011-11-03 View
8021 5507 204 NCBG staff 1993-01-01 View
9279 9020 142 NCBG staff 1967-12-31 View
11668 8439 115 NCBG staff 2006-01-01 View
12348 8439 43 Liloia 2012-03-28 View

USDA PLANTS DATABASE

USDA Symbol: SITE
USDA Common Name: Prairie Rosinweed
Native Status: L48 (N), CAN (N)
Distribution: USA (AL, AR, DC, GA, IA, IL, IN, KY, MI, MO, MS, NC, OH, SC, TN, VA, WI, WV), CAN (ON)
Duration: Perennial
Growth Habit: Forb/herb

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FACU FACU FAC FAC

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

2018 Natural Heritage Program List of Rare Plant Species of North Carolina

NHP IDS RANKROUNDED S RANKG RANKROUNDED G RANKSTATE STATUSFEDERAL STATUS
15125 S2 S2 G4G5 G4 SR-P

This information is derived from the 2018 North Carolina Natural Heritage Program List of Rare Plant Species.

WEAKLEY FLORA

SCIENTIFIC NAME: Silphium terebinthinaceum
COMMON NAME: Prairie-dock
SYNONYMY: [= RAB, SE, Va; = S. terebinthinaceum var. terebinthinaceum - F, FNA, K2; < S. terebinthinaceum - G; > S. terebinthinaceum var. terebinthinaceum - Il, K1, Y; S. terebinthinaceum var. lucy-brauniae - Il, orthographic variant; > S. terebinthinaceum var. luciae-brauniae Steyermark - K1; > S. terebinthinaceum - S; > S. rumicifolium Small - S, Y]
PHENOLOGY: Jul-Sep.
HABITAT: Mafic or calcareous glades, barrens, woodlands, prairies, and roadsides.
COMMENTS: NY, ON, WI, and NE south to nw. GA, MS,and AR; disjunct eastward in Piedmont of NC and n. SC. S. rumicifolium Small refers to plants of limestone in the Ridge and Valley province of e. TN and extreme sw. VA, alleged to differ from S. terebinthinaceum in the leaf bases cuneate at the base (vs. cordate or truncate), smaller leaf blades (only to 15 cm long), smaller plants (to 8 dm tall vs. to 30 dm tall), and outer phyllaries broader than long (vs. longer than broad). The distinction of var. luciae-brauniae Steyermark, with leaf blades glabrous above vs. scabrous, is dubious and needs additional study.
RANGE MAP: Silphium terebinthinaceum.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Asteraceae Dumortier 1822 or COMPOSITAE Giseke 1792 (Aster Family)
SUMMARY: A family of about 1500-1700 genera and 20,000-25,000 species, shrubs, herbs, trees, and vines, cosmopolitan in distribution.
REFERENCE: Cronquist (1980)=SE throughout family treatment.
ABOUT GENUS (Weakley Flora)
Silphium L. (Rosinweed)
SUMMARY: A genus of 20-30 species, herbs, of e. North America.
REFERENCE: Sweeney (1970)=Z; Perry (1937)=Y; Clevinger in FNA (2006c); Clevinger (2004)=X; Cronquist (1980)=SE; Cruden (1962); Medley (1989); Steyermark (1951).

HERBARIUM RESOURCES

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

WEB RESOURCES

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

NCBG IMAGE RECORDS

ID IMAGE1: 9581
ID IMAGE2: 9582
ID IMAGE3: 9581

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38 photo(s) available in the Image Gallery

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