Silphium 56 claims

genus · family Asteraceae · green plant · NCBI Taxonomy ↗

5 spellings

Silphium · picture of the genus (one of its species)DDennisM · CC BY 3.0 · Wikimedia Commons ↗

56 claims

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Observationobservedoriginal resultmeasured

Claim · model-written summary

Silphium had greatest root mass loss.

Taxon: silphiumSilphiume0
Outcome: Root mass losse0
Direction: greateste0
Qualifier: low neutral and acid detergent fibers and lignin contentse0

Verbatim

e0
“Root mass loss was greatest for silphium, owing to low neutral and acid detergent fibers and lignin contents (6%) relative to the other species (16%–25%)”
✓ located verbatim in the source · abstract, characters 785–938

Title

Root decomposition and nutrient dynamics in multifunctional forage‐biomass buffer‐strip systems

Helen C. S. Amorim; Amanda J. Ashworth; Taylor C. Adams; et al. Agrosystems Geosciences & Environment 2025. doi:10.1002/agg2.70030

Other claims from this paper (8)

Observation Intermediate wheatgrass had greatest root carbon loss.
Mechanism Low root mass, area and volume likely enhanced decomposition of silphium and intermediate wheatgrass.
Intervention effect Poultry litter plots had greater root mass loss.
Intervention effect Poultry litter plots had greater C, N and P mineralization.
Observation Soil organic carbon stocks were mostly similar across species and amendments.
Intervention effect Silphium with poultry litter had 27% to 50% greater soil organic carbon stocks after four years.
Association Root chemistry and morphology primarily affected decomposition rates.
Association Soil moisture and temperature drove soil carbon dioxide efflux.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Silphium with poultry litter had 27% to 50% greater soil organic carbon stocks after four years.

Taxon: SilphiumSilphiume0
Treatment: PLe0
Outcome: SOC stockse0
Direction: greatere0
Value: 27%–50%e0
Qualifier: after 4 yearse0

Not reportedComparator

Verbatim

e0
“Silphium‐PL had 27%–50% greater SOC stocks after 4 years, owing to higher root sloughing and C inputs to soil”
✓ located verbatim in the source · abstract, characters 1354–1463

Title

Root decomposition and nutrient dynamics in multifunctional forage‐biomass buffer‐strip systems

Helen C. S. Amorim; Amanda J. Ashworth; Taylor C. Adams; et al. Agrosystems Geosciences & Environment 2025. doi:10.1002/agg2.70030

Other claims from this paper (8)

Observation Silphium had greatest root mass loss.
Observation Intermediate wheatgrass had greatest root carbon loss.
Mechanism Low root mass, area and volume likely enhanced decomposition of silphium and intermediate wheatgrass.
Intervention effect Poultry litter plots had greater root mass loss.
Intervention effect Poultry litter plots had greater C, N and P mineralization.
Observation Soil organic carbon stocks were mostly similar across species and amendments.
Association Root chemistry and morphology primarily affected decomposition rates.
Association Soil moisture and temperature drove soil carbon dioxide efflux.

Observationobservedoriginal resultmeasured

Claim · model-written summary

DCMV was identified in association with Silphium for the first time.

Taxon: Silphium spp.Silphiume0
Interactor: DCMVe0pathogen
Outcome: DCMV was identifiede0

Verbatim

e0
“DCMV was identified for the first time in association with Silphium spp.”
✓ located verbatim in the source · abstract, characters 112–184

Title

Identification and Molecular Characterization of Dahlia Common Mosaic Virus from Silphium spp., a New Natural Host of the Virus

Ying Zhai; Prabu Gnanasekaran; Romana Iftikhar; et al. PhytoFrontiers™ 2024. doi:10.1094/phytofr-12-23-0156-sc

Other claims from this paper (4)

Method / resource A complete DCMV genome was cloned and sequenced from symptomatic silphium in Kansas.
Observation Two silphium DCMV isolates had over 98% sequence identity to dahlia isolates.
Observation DvEPRS was detected in all 19 silphium samples.
Mechanism Authors suggest DvEPRS may be integrated in the silphium genome.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

A complete DCMV genome was cloned and sequenced from symptomatic silphium in Kansas.

Taxon: silphiumSilphiume0
Interactor: DCMVe0pathogen
Outcome: complete genome of DCMV was cloned and sequencede0
Setting: Kansase0

Not reportedComparatorValue

Verbatim

e0
“The complete genome of DCMV was cloned and sequenced from naturally occurring symptomatic silphium plants grown in Kansas.”
✓ located verbatim in the source · abstract, characters 185–307

Title

Identification and Molecular Characterization of Dahlia Common Mosaic Virus from Silphium spp., a New Natural Host of the Virus

Ying Zhai; Prabu Gnanasekaran; Romana Iftikhar; et al. PhytoFrontiers™ 2024. doi:10.1094/phytofr-12-23-0156-sc

Other claims from this paper (4)

Observation DCMV was identified in association with Silphium for the first time.
Observation Two silphium DCMV isolates had over 98% sequence identity to dahlia isolates.
Observation DvEPRS was detected in all 19 silphium samples.
Mechanism Authors suggest DvEPRS may be integrated in the silphium genome.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Two silphium DCMV isolates had over 98% sequence identity to dahlia isolates.

Taxon: silphiumSilphiume0
Interactor: DCMVe0pathogen
Outcome: sequence identitye0
Value: over 98%e0
Comparator: dahlia ( D. variabilis)e0

Verbatim

e0
“The two DCMV silphium isolates sequenced showed over 98% sequence identity with those reported from dahlia ( D. variabilis).”
✓ located verbatim in the source · abstract, characters 308–432

Title

Identification and Molecular Characterization of Dahlia Common Mosaic Virus from Silphium spp., a New Natural Host of the Virus

Ying Zhai; Prabu Gnanasekaran; Romana Iftikhar; et al. PhytoFrontiers™ 2024. doi:10.1094/phytofr-12-23-0156-sc

Other claims from this paper (4)

Observation DCMV was identified in association with Silphium for the first time.
Method / resource A complete DCMV genome was cloned and sequenced from symptomatic silphium in Kansas.
Observation DvEPRS was detected in all 19 silphium samples.
Mechanism Authors suggest DvEPRS may be integrated in the silphium genome.

Observationobservedoriginal resultmeasured

Claim · model-written summary

DvEPRS was detected in all 19 silphium samples.

Taxon: silphiumSilphiume0
Gene: D. variabilis endogenous pararetroviral sequence (DvEPRS)e0
Outcome: endogenous pararetroviral sequence (DvEPRS) was also detectede0
Value: all 19e0

Verbatim

e0
“The D. variabilis endogenous pararetroviral sequence (DvEPRS) was also detected in all 19 silphium samples tested in this study”
✓ located verbatim in the source · abstract, characters 433–560

Title

Identification and Molecular Characterization of Dahlia Common Mosaic Virus from Silphium spp., a New Natural Host of the Virus

Ying Zhai; Prabu Gnanasekaran; Romana Iftikhar; et al. PhytoFrontiers™ 2024. doi:10.1094/phytofr-12-23-0156-sc

Other claims from this paper (4)

Observation DCMV was identified in association with Silphium for the first time.
Method / resource A complete DCMV genome was cloned and sequenced from symptomatic silphium in Kansas.
Observation Two silphium DCMV isolates had over 98% sequence identity to dahlia isolates.
Mechanism Authors suggest DvEPRS may be integrated in the silphium genome.

Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Authors suggest DvEPRS may be integrated in the silphium genome.

Taxon: silphiumSilphiume0
Gene: DvEPRSe0
Outcome: integrated sequence in the silphium genomee0
Qualifier: may existe0

Verbatim

e0
“DvEPRS may exist as an integrated sequence in the silphium genome as well”
✓ located verbatim in the source · abstract, characters 578–651

Title

Identification and Molecular Characterization of Dahlia Common Mosaic Virus from Silphium spp., a New Natural Host of the Virus

Ying Zhai; Prabu Gnanasekaran; Romana Iftikhar; et al. PhytoFrontiers™ 2024. doi:10.1094/phytofr-12-23-0156-sc

Other claims from this paper (4)

Observation DCMV was identified in association with Silphium for the first time.
Method / resource A complete DCMV genome was cloned and sequenced from symptomatic silphium in Kansas.
Observation Two silphium DCMV isolates had over 98% sequence identity to dahlia isolates.
Observation DvEPRS was detected in all 19 silphium samples.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Penstemon and Silphium were among the strongly preferred plants.

Taxon: Penstemon digitalis , and Silphium spp.Silphium Penstemon digitalise0
Interactor: BombusBombuse1pollinator
Outcome: Penstemon digitalis , and Silphium spp.e0

Verbatim

e0
“Monarda fistulosa , Penstemon digitalis , and Silphium spp.”
✓ located verbatim in the source · abstract, characters 817–876

e1
“Bombus selected flowers nonrandomly”
✓ located verbatim in the source · abstract, characters 654–689

Title

Bumble bee banquet: Genus‐ and species‐level floral selection by Midwestern Bombus

Jessie Lanterman Novotny; Andrew Lybbert; Paige Reeher; et al. Ecosphere 2023. doi:10.1002/ecs2.4425

Other claims from this paper (14)

Observation Bombus selected flowers nonrandomly.
Observation The most strongly preferred plants included Asclepias, Cirsium and Convolvulaceae.
Observation Other strongly preferred plants included Dipsacus, Echinacea and Monarda.
Observation Few Fabaceae were highly selected, including Baptisia, Trifolium pratense and Vicia.
Observation Securigera varia was preferred only during peak bloom.
Observation T. hybridum and Melilotus were not preferred by bumble bees.
Association Bumble bee diets differed among habitats.
Observation In restored meadows bumble bees selected native planted species including Monarda, Asclepias and Echinacea.
Association Seasonal diets and preferences shifted with plant phenology.
Method / resource Rarefaction detected almost all summer diet plants of three common Bombus species.
Method / resource Sampling did not fully characterize diets of five less common species.
Observation Common Bombus species differed in feeding niches.
Observation Three rarer Bombus species had high diet overlap.
Observation Five of eight Bombus species most strongly preferred a non-native plant.

Observationobservedoriginal resultmeasured

Claim · model-written summary

New distribution and naturalization records are reported in the Alabama and Mississippi Coastal Plain.

Taxon: Baptisia, Clematis, Coreopsis, Galium, Matelea, Mirabilis, Poterium, Rhynchospora, Silphium, and SymphyotrichumClematisMirabilisCoreopsisGaliumRhynchosporaBaptisiaSilphiumSanguisorbaMateleaSymphyotrichume1
Outcome: new distribution and naturalization recordse0
Setting: Coastal Plain of Alabama and Mississippie1

Schema note from the model: Multiple taxa grouped to retain distribution coverage within the claim budget.

Verbatim

e0
“new distribution and naturalization records”
✓ located verbatim in the source · abstract, characters 1279–1322

e1
“in the Coastal Plain of Alabama and Mississippi (taxa in the genera Baptisia, Clematis, Coreopsis, Galium, Matelea, Mirabilis, Poterium, Rhynchospora, Silphium, and Symphyotrichum)”
✓ located verbatim in the source · abstract, characters 1620–1800

Title

Studies in the vascular flora of the southeastern United States. IX

Alan S. Weakley; John C. Kees; Bruce A. Sorrie; et al. Journal of the Botanical Research Institute of Texas 2023. doi:10.17348/jbrit.v17.i1.1293

Other claims from this paper (15)

Observation A new Rhynchospora species is described.
Observation A new Sabulina species is described.
Observation A new Solidago species is described.
Observation A new section in Trichostema is described.
Observation New combinations are made in Lycopodioides.
Observation New combinations are made in Moeroris.
Observation New combinations are made in Morella.
Observation New combinations are made in Nellica.
Observation New combinations are made in Tamala.
Observation New combinations are made in Trichostema.
Recommendation Lumping two Sisyrinchium species is proposed, changing name and nativity status.
Method / resource New keys clarify identification of difficult regional flora groups.
Observation New distribution and naturalization records are reported for numerous genera in New Jersey.
Observation New distribution and naturalization records are reported in southern Indiana.
Observation New Euphorbia distribution and naturalization records occur in North Carolina, Virginia and likely other states.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

In 2017, more adult flies emerged from S. integrifolium and hybrids than from S. perfoliatum.

Taxon: SilphiumSilphiume1
Material: S. integrifolium and hybridse2
Interactor: Neotephritis finalisNeotephritis finalise0pest
Outcome: flies emergede2
Direction: moree2
Comparator: S. perfoliatume2
Setting: 2017e2

Verbatim

e0
“Neotephritis finalis (Loew), a fly known as a minor pest of cultivated sunflowers”
✓ located verbatim in the source · abstract, characters 9–90

e1
“Silphium spp., which are being evaluated as new crops”
✓ located verbatim in the source · abstract, characters 144–197

e2
“In 2017, more flies emerged from S. integrifolium and hybrids than from S. perfoliatum”
✓ located verbatim in the source · abstract, characters 565–651

Title

Pest potential of Neotephritis finalis (Loew) on Silphium integrifolium Michx., Silphium perfoliatum L., and interspecific hybrids

Stephan Reinert; Brent S. Hulke; Jarrad R. Prasifka Agronomy Journal 2020. doi:10.1002/agj2.20078

Other claims from this paper (4)

Association High numbers of adult flies per head appeared unrelated to seed set in S. integrifolium.
Observation In 2018, far fewer flies were found across Silphium spp. than in 2017.
Association Seed set in Silphium spp. in 2018 was similar to 2017.
Association N. finalis is unlikely to limit seed production of Silphium spp.