Cyclospermum leptophyllum (Persoon) Sprague ex Britton & Wilson. Common name: Marsh-parsley. Phenology: Apr-early Jun; Jun-Jul. Habitat: Freshwater marshes, disturbed areas, roadside ditches. Distribution: Widespread in se. North America, from NC and OK south into tropical America, the native distribution uncertain.
Origin/Endemic status: Native
Synonymy ⓘ: = Ar, Fl7, FNA13, K4, Meso4.1, Mex, NcTx, Ok, Tn, Va, WH3, Ronse et al (2010); = Apium ammi Crantz — S13, misapplied; = Apium leptophyllum (Pers.) F.Muell. ex Benth. — Bah, C, G, GW2, Il, MC, RAB, Tx; = Ciclospermum leptophyllum (Pers.) Sprague ex Britton & Wilson — NY, orthographic variant; = Cyclospermum ammi (L.) Lag. — S, misapplied; = n/a — F, Pa, Tat; Pimpinella leptophylla C.H. Persoon. Basionym: Pimpinella leptophylla Pers. 1805
Links to other floras: = Cyclospermum leptophyllum - FNA13
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FAC
- Eastern Mountains and Piedmont: FAC
- Great Plains: FAC
- Midwest: FAC
Heliophily ⓘ: 8
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© Keith Bradley | Original Image ⭷
© Aidan Campos source | Original Image ⭷
© Keith Bradley | Original Image ⭷
© Aidan Campos source | Original Image ⭷
© Aidan Campos source | Original Image ⭷
© Radford, Ahles and Bell | Original Image ⭷Feedback
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Horticultural Information
Intro: Erect to reclining annual of freshwater marshes and disturbed areas, such as roadside ditches. Probably native of tropical America, now widespread in se. North America.
Stems: Stems slender, branched, smooth.
Leaves: Leaves alternate, on petioles with sheathing bases, 1/2-3 1/2 in. long (reduced in size upward), finely divided (2-3 times pinnately compound) into many linear, almost needle-like segments, smooth.
Inforescence:
Flowers: Flowers in compound, terminal and axillary umbels containing 2-3 umbellets; umbellets 1/4-1/2 in. wide and composed of 5-15 tiny white, 5-petaled flowers.
Fruits: Fruit a joined pair of asymmetrically elliptic seeds that are flat to slightly concave on one side and convex and conspicuously 3-ribbed on the other.
Comments:
Height: 4-18 in.
plant sale text:
bloom table text:
description: Erect to reclining annual of freshwater marshes and disturbed areas, such as roadside ditches. Probably native of tropical America, now widespread in se. North America.
stems: Stems slender, branched, smooth.
leaves: Leaves alternate, on petioles with sheathing bases, 1/2-3 1/2 in. long (reduced in size upward), finely divided (2-3 times pinnately compound) into many linear, almost needle-like segments, smooth.
inflorescence:
flowers: Flowers in compound, terminal and axillary umbels containing 2-3 umbellets; umbellets 1/4-1/2 in. wide and composed of 5-15 tiny white, 5-petaled flowers.
fruits: Fruit a joined pair of asymmetrically elliptic seeds that are flat to slightly concave on one side and convex and conspicuously 3-ribbed on the other.
comments:
cultural notes:
germination code:
native range:
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