SimplePlant

Apiaceae

Ribbed mock bishopweed

Ptilimnium costatum Raf.

Family
Apiaceae
Genus
Ptilimnium

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Ribbed mock bishopweed (Ptilimnium costatum)
FlowerPhoto: Alison Northup, CC BY 4.0, from iNaturalist

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Common names

By language (2)
Chinese
丝裂芹, 大丝裂芹
English
Ribbed mock bishopweed

Synonyms

  • Ammi costatum Elliott
  • Discopleura capillacea var. costata A.Gray
  • Discopleura costata Steud.
  • Discopleura costata (Elliott) Chapm.
  • Ptilimnium missouriense J.M.Coult. & Rose
  • Sison costatus (Ell.) Eaton

Characteristics

Growth habit
Forb/herb
Lifespan
Annual
In the US and Canada
Lower 48 states: native

Photos

More in Ptilimnium

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.