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.
Origin/Endemic status: Native
Synonymy ⓘ: = Ar, C, Fl4, FNA10, GrPl, GW2, Il, K1, K3, K4, Meso4.1, Mex, Mi, 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
Links to other floras: = Rotala ramosior - FNA10
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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© Shaun Pogacnik, some rights reserved (CC BY-NC), uploaded by Shaun Pogacnik source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Jay Horn source | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© abelkinser, some rights reserved (CC BY-NC) source CC-BY-NC, permission granted to NCBG | Original Image ⭷Feedback
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Horticultural Information
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.
comments:
cultural notes:
germination code:
native range: