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Lythraceae
Rotala

not marked as a favorite taxon Rotala ramosior (Linnaeus) Koehne. Common name: Toothcup. Phenology: Jun-Oct. Habitat: Marshes, ditches, exposed drawdown muds and silts. Distribution: VT, NY, ON, MI, WI, MN, SD, MT, and BC, south to s. FL, TX, AZ, CA, and south through Mexico to Central America and South America; West Indies.

Glossary (beta!)

Origin/Endemic status: Native

Synonymy ⓘ: = Ar, C, Fl4, FNA10, GrPl, GW2, Il, K4, Meso4.1, Mex, Mi, Mo3, NcTx, NE, NY, Pa, RAB, S, S13, Tat, Tn, Va, W, WH3, Graham (1975); > Rotala ramosior (L.) Koehne var. interior Fernald & Griscom — F, G, Tx; > Rotala ramosior (L.) Koehne var. ramosior — F, G, Tx; Ammannia ramosior Linnaeus. Basionym: Ammannia ramosior L. 1753

Links to other floras: = Rotala ramosior - FNA10

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL
  • Eastern Mountains and Piedmont: OBL
  • Great Plains: OBL
  • Midwest: OBL
  • Northcentral & Northeast: OBL

Heliophily ⓘ: 8

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image #1 of Rotala ramosior© Shaun Pogacnik, some rights reserved (CC BY-NC), uploaded by Shaun Pogacnik source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #2 of Rotala ramosior© Bruce A. Sorrie | Original Image ⭷
image #3 of Rotala ramosior© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #4 of Rotala ramosior© Jay Horn source | Original Image ⭷
image #5 of Rotala ramosior© Bruce A. Sorrie | Original Image ⭷
image #6 of Rotala ramosior© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #7 of Rotala ramosior© Gary P. Fleming | Original Image ⭷
image #8 of Rotala ramosior© abelkinser, some rights reserved (CC BY-NC) source CC-BY-NC, permission granted to NCBG | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect to reclining annual of marshes, ditches, exposed draw-down muds and silts.

Stems: Stems 4-angled, freely branched (sometimes unbranced), smooth, turning red over time.

Leaves: Leaves opposite or whorled, linear-oblong, petiolate, 1/2-1 1/4 in. long, smooth.

Inforescence:

Flowers: Flowers solitary in leaf axils, red, to 1/4 in. long, tubular with 4 minute, white-pink corolla lobes.

Fruits: Fruit a rounded, 4-sectioned capsule tipped with 4 teeth.

Comments:

Height: 2-15 in.

plant sale text:

bloom table text:

description: Erect to reclining annual of marshes, ditches, exposed draw-down muds and silts.

stems: Stems 4-angled, freely branched (sometimes unbranced), smooth, turning red over time.

leaves: Leaves opposite or whorled, linear-oblong, petiolate, 1/2-1 1/4 in. long, smooth.

inflorescence:

flowers: Flowers solitary in leaf axils, red, to 1/4 in. long, tubular with 4 minute, white-pink corolla lobes.

fruits: Fruit a rounded, 4-sectioned capsule tipped with 4 teeth.

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cultural notes:

germination code:

native range:



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