Geum laciniatum J. Murray. Common name: Rough Avens. Phenology: Jun-Jul; Jul-Aug. Habitat: Fens and wet meadows, rich alluvial soil of bottomland forests, especially over calcareous or mafic rocks. Distribution: NS west to w, ON, MN, and e. SD, south to nw. SC and KS.
Origin/Endemic status: Native
Taxonomy Comments: Two varieties are sometimes recognized: var. laciniatum has glabrous achenes and is generally more northern and more restricted in distribution than var. trichocarpum, which has achenes sparsely to densely pubescent with long stiff trichomes, and ranges from NS west to s. ON, south to MD, VA, w. NC, TN, OH, IL, MO, and KS. The difference appears to be that of a single trait, uncorrelated with other traits, and with largely overlapping geographic distributions; the varieties are not recognized here.
Synonymy ⓘ: = C, Can, FNA9, GrPl, GW2, K4, Mi, NY, Pa, RAB, Tn, Va, W, Bolle (1933); > Geum laciniatum Murray var. laciniatum — F, G, Il, NE, WV, Robertson (1974); > Geum laciniatum Murray var. trichocarpum Fernald — F, G, Il, NE, Robertson (1974). Basionym: Geum laciniatum Murray 1775
Links to other floras: = Geum laciniatum - FNA9
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACW
- Eastern Mountains and Piedmont: FAC
- Great Plains: FACW
- Midwest: FACW
- Northcentral & Northeast: FACW
Heliophily ⓘ: 7
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© Gary P. Fleming | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Paul Marcum source | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Paul Marcum source | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Erik Danielson source | Original Image ⭷Feedback
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Horticultural Information
Intro: Erect perennial of fens and wet meadows, especially over calcareous or mafic rocks.
Stems: Stems densely hairy.
Leaves: Basal and lower leaves on long petioles with lobed or toothed stipules at the base, simple and round or pinnately divided into 5 or more sharply toothed leaflets/lobes; upper stem leaves smaller and simple or divided into 3.
Inforescence:
Flowers: Flowers 1-3 at top of stem, each on a stalk to 3 in. long and covered with spreading hairs; white or cream; to 1/2 in. wide; consisting of 5 spreading petals, 5 lance-shaped sepals that are significantly longer and several stamens surrounding a cone-shaped compound ovary bristling with elongated styles.
Fruits: Fruit a bristly, round head of achenes.
Comments:
Height: 1 1/2-3 ft.
plant sale text:
bloom table text:
description: Erect perennial of fens and wet meadows, especially over calcareous or mafic rocks.
stems: Stems densely hairy.
leaves: Basal and lower leaves on long petioles with lobed or toothed stipules at the base, simple and round or pinnately divided into 5 or more sharply toothed leaflets/lobes; upper stem leaves smaller and simple or divided into 3.
inflorescence:
flowers: Flowers 1-3 at top of stem, each on a stalk to 3 in. long and covered with spreading hairs; white or cream; to 1/2 in. wide; consisting of 5 spreading petals, 5 lance-shaped sepals that are significantly longer and several stamens surrounding a cone-shaped compound ovary bristling with elongated styles.
fruits: Fruit a bristly, round head of achenes.
comments:
cultural notes:
germination code:
native range:
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