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Apiaceae
Ptilimnium

not marked as a favorite taxon Ptilimnium capillaceum (Michaux) Rafinesque. Common name: Eastern Bishopweed, Atlantic Bishopweed. Phenology: Jun-Aug; Jul-Sep. Habitat: Ditches, marshes, other wet places. Distribution: MA, NY, and MO south to s. FL and TX.

Glossary (beta!)

Origin/Endemic status: Native

Synonymy ⓘ: = Ar, C, F, Fl7, FNA13, G, GrPl, GW2, K4, MC, Mo2, NcTx, NE, NY, Ok, Pa, S, S13, Tat, Tn, Tx, Va, W, WH3, Easterly (1957), Weakley & Nesom (2004); < Ptilimnium capillaceum (Michx.) Raf. — RAB, Feist (2010); Ammi capillaceum Michaux. Basionym: Ammi capillaceum Michx. 1803

Links to other floras: = Ptilimnium capillaceum - FNA13

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL (taxonomic split from wetland indicator species)
  • Eastern Mountains and Piedmont: OBL
  • Great Plains: FACW (taxonomic split from wetland indicator species)
  • Midwest: OBL (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: OBL (taxonomic split from wetland indicator species)

Heliophily ⓘ: 8

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image #1 of Ptilimnium capillaceum© Bruce A. Sorrie | Original Image ⭷
image #2 of Ptilimnium capillaceum© Alan M. Cressler | Original Image ⭷
image #3 of Ptilimnium capillaceum© Alan M. Cressler | Original Image ⭷
image #4 of Ptilimnium capillaceum© Scott Ward | Original Image ⭷
image #6 of Ptilimnium capillaceum© Keith Bradley | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Slender, erect annual of ditches, marshes and other wet places.

Stems: Stems loosely branched, at least above, smooth.

Leaves: Leaves alternate, on short petioles with sheathing base, to 4 in. long, divided into 3 leaflets that are further divided into many smooth, threadlike segments.

Inforescence:

Flowers: Flowers in flat-topped, compound umbels (to 2 in. wide) at tips of branches, each umbellet with 4--20 flowers, and the umbel surrounded by a whorl of bracts that resemble small versions of the leaves. . Flowers white, tiny, consisting of 5 incurved petals and stamens with pinkish-purple anthers.

Fruits: Fruit a joined pair of oval, ridged seeds.

Comments:

Height: 6-60 in.

plant sale text:

bloom table text:

description: Slender, erect annual of ditches, marshes and other wet places.

stems: Stems loosely branched, at least above, smooth.

leaves: Leaves alternate, on short petioles with sheathing base, to 4 in. long, divided into 3 leaflets that are further divided into many smooth, threadlike segments.

inflorescence:

flowers: Flowers in flat-topped, compound umbels (to 2 in. wide) at tips of branches, each umbellet with 4--20 flowers, and the umbel surrounded by a whorl of bracts that resemble small versions of the leaves. . Flowers white, tiny, consisting of 5 incurved petals and stamens with pinkish-purple anthers.

fruits: Fruit a joined pair of oval, ridged seeds.

comments:

cultural notes:

germination code:

native range: