Hydrophyllum macrophyllum Nuttall. Common name: Hairy Waterleaf. Phenology: May-Jun; Jul-Aug. Habitat: Cove forests and other moist rocky forests, especially over calcareous or mafic rocks. Distribution: WV west to OH, and IL, south to sw. VA, w. NC, n. GA, and n. AL; disjunct in the lower Piedmont of SC (Kershaw County; L.L. Gaddy, pers. comm. 2013).
Origin/Endemic status: Native
Taxonomy Comments: Reports from AR are erroneous, and are based on material of Hydrophyllum brownei Kral & Bates (Peck 2003). The w. North American H. occidentale (S. Watson) A. Gray is rather closely related.
Synonymy ⓘ: = C, F, G, Il, K4, Pa, RAB, S, Tn, Va, W, WV, Beckmann (1979), Constance (1942), Kral & Bates (1991); >< Hydrophyllum macrophyllum Nutt. Basionym: Hydrophyllum macrophyllum Nutt. 1834
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Heliophily ⓘ: 2
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© Gary P. Fleming | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Joey Shaw source | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Joey Shaw source | Original Image ⭷Feedback
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Horticultural Information
Intro: Erect, rhizomatous perennial of cove forests and other moist rocky forests, especially over calcareous or mafic rocks.
Stems: Stems tending to zig-zag, branched, furry-hairy.
Leaves: Leaves petiolate, elliptic to oblong, to 6 in. long, pinnately divided into 7-13 toothed segments, blotched with grayish-white when young (resembles a water stain) and slightly hairy.
Inforescence:
Flowers: Flowers in 2-3 floppy, terminal clusters, the branches and stalks covered with long hairs; usually white; 3/4 in. wide (fully open); bell-shaped, the corolla divided into 5 spreading lobes and the hairy calyx divided into 5 triangular lobes.
Fruits:
Comments:
Height: 1-2 1/2 ft.
plant sale text:
bloom table text:
description: Erect, rhizomatous perennial of cove forests and other moist rocky forests, especially over calcareous or mafic rocks.
stems: Stems tending to zig-zag, branched, furry-hairy.
leaves: Leaves petiolate, elliptic to oblong, to 6 in. long, pinnately divided into 7-13 toothed segments, blotched with grayish-white when young (resembles a water stain) and slightly hairy.
inflorescence:
flowers: Flowers in 2-3 floppy, terminal clusters, the branches and stalks covered with long hairs; usually white; 3/4 in. wide (fully open); bell-shaped, the corolla divided into 5 spreading lobes and the hairy calyx divided into 5 triangular lobes.
fruits:
comments:
cultural notes:
germination code:
native range:
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