Silphidium

Quality 0.50 · 2 views · Updated 2 months ago

Species of flowering plant

title: "Silphidium" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["coreopsideae", "monotypic-asteraceae-genera", "flora-of-the-appalachian-mountains", "flora-of-georgia-(u.s.-state)", "flora-of-north-carolina", "flora-of-south-carolina", "flora-of-tennessee", "endemic-flora-of-the-united-states", "taxa-described-in-2023"] description: "Species of flowering plant" topic_path: "geography/united-states" source: "https://en.wikipedia.org/wiki/Silphidium" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Species of flowering plant ::

|image = Coreopsis latifolia.jpg |status = G3 |status_system = TNC |status_ref = |genus = Silphidium |parent_authority = (Torr. & A.Gray) Mesfin & D.J.Crawford |species = latifolium |authority = (Michx.) Mesfin & D.J.Crawford |display_parents = 4 |synonyms =

  • Coreopsis latifolia Michx. (1803) (basionym)
  • Leiodon latifolius (Michx.) Shuttlew. ex Sherff |synonyms_ref =

Silphidium latifolium is a North American species of flowering plant in the aster family known by the common name broad-leaved tickseed. It is the sole species in genus Silphidium. It is native to the southeastern United States, primarily in the southern Appalachians of the states of Georgia, North Carolina, South Carolina, and Tennessee.

The species was first described as Coreopsis latifolia by André Michaux in 1803. In 2023 Mesfin Tadesse and Daniel J. Crawford placed the species in the new genus Silphidium as Silphidium latifolium.

Description

Silphidium latifolium, a rhizomatous perennial herb, grows up to 1.5 m tall. The leaves are oval and may exceed 20 cm long by 10 cm wide.

The inflorescence is a corymb

Distribution

Silphidium latifolium is native to the Blue Ridge Mountains, its distribution extending from the Great Craggy Mountains to the South Carolina line. Populations in Tennessee are disjunct. The plant grows in moist hardwood forest habitat on mafic rock such as amphibolite or hornblende gneiss. It can sometimes be seen on roadsides. In its range it is most abundant in North Carolina, but it is rare in general.

It is likely a relict species which had a wider distribution in the past.

Conservation

Silphidium latifolium is threatened with the loss of its habitat, which is being consumed for development. It is a listed Vulnerable plant species. In some of its range it is considered to be stable and not declining quickly.

References

References

  1. "''Silphidium latifolium'' (Michx.) Mesfin & D.J.Crawford". [[Royal Botanic Gardens, Kew]].
  2. [https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.141346/Coreopsis_latifolia] The Nature Conservancy.
  3. link. (2011-10-26 Center for Plant Conservation.)
  4. [http://bonap.net/MapGallery/County/Coreopsis%20latifolia.png Biota of North America Program 2014 county distribution map]
  5. of [[Head (botany). flower heads]], each with five [[bract
  6. Crawford, D. J., et al. (1988). [http://onlinelibrary.wiley.com/doi/10.1111/j.1442-1984.1988.tb00165.x/abstract Allozyme variation within and between populations of ''Coreopsis latifolia'' (Asteraceae).] ''Plant Species Biology'' 3(1) 1-5.

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::

coreopsideaemonotypic-asteraceae-generaflora-of-the-appalachian-mountainsflora-of-georgia-(u.s.-state)flora-of-north-carolinaflora-of-south-carolinaflora-of-tennesseeendemic-flora-of-the-united-statestaxa-described-in-2023