Plant Index


 
 
 
 

Silphium laciniatum

Silphium laciniatum L.

compass-plant, compassplant

Silphium laciniatum (Compass-plant)
Image ID: 67094
Image by: Ware, Richard & Teresa
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: SILA3
SCIENTIFIC NAME: Silphium laciniatum
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2020-01-01

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: Deciduous

FLORAL CHARACTERISTICS
SYMMETRY:
BLOOM TIME: Jul-Sep
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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: eastern & central North America

HORTICULTURAL
Plant Sale Text:

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE:
LIGHT EXPOSURE:
MINIMUM HARDINESS ZONE:
MAXIMUM HARDINESS ZONE:
GERMINATION CODE:
WILDLIFE VALUE:
DEER RESISTANCE:

GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
1822 HORT 2006-10-01 Bryan View
1827 HORT 2006-10-01 Bryan View

USDA PLANTS DATABASE

USDA Symbol: SILA3
USDA Common Name: Compassplant
Native Status: L48 (N), CAN (N)
Distribution: USA (AL, AR, CO, DC, IA, IL, IN, KS, KY, LA, MI, MN, MO, MS, ND, NE, NM, NY, OH, OK, PA, SD, TN, TX, VA, WI), CAN (ON)
Duration: Perennial
Growth Habit: Forb/herb

WEAKLEY FLORA

SCIENTIFIC NAME: Silphium laciniatum
COMMON NAME: Compass-plant
SYNONYMY: [= C, FNA, G, K2, SE; > S. laciniatum var. laciniatum - F, Il, K1, Y; > S. laciniatum var. robinsonii L.M. Perry - F, Il, K1, Y]
PHENOLOGY: Jul-Sep.
HABITAT: Prairies, limestone barrens, calcareous glades, also sometimes cultivated (including outside of its native distribution).
COMMENTS: S. ON, MI. WI, s. MN, and e. SD south to se. TN, s. AL, c. MS, s. LA, c. TX, and n. NM. Populations discovered at outlying sites to the east (Chester Co. VA, Chain Bridge in Washington DC in the 1880s, etc.) are ambiguous as to nativity (R. Wright, pers. comm. 2012).
RANGE MAP: Silphium laciniatum.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 laciniatum in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Silphium laciniatum in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

WEB RESOURCES

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

IMAGE USE RECORDS

ID IMAGE: 67094 - Primary Image FloraQuest Plant Detail Page (Landscape Preferred)
ID IMAGE1: 0 - Primary Image WOTAS
ID IMAGE2: 0 - Secondary Image WOTAS
ID IMAGE3: 0 - Primary Image Plant Sale Sign (Landscape Only)
ID IMAGE4: 0 - Primary Image New Plant Sale Label (Portrait Only)

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Image ID: 67095

Image ID: 67096

Image ID: 67097
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