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Kosteletzkya pentacarpos (Linnaeus) Ledebour. Seashore-mallow, Saltmarsh-mallow, Fen-rose. Phen: Jul-Oct. Hab: Brackish to freshwater tidal marshes. Dist: NY (Long Island) south to s. FL, west to TX; West Indies (Cuba); also early introduced in Europe, Linnaeus's name based on its occurrence in Venice).

Origin/Endemic status: Native

Taxonomy Comments: Several varieties have often been recognized on the basis of length of hairs and of parts of the flower and inflorescence (see synonymy). While geographic trends are readily apparent, the recognition of infraspecific taxa is made problematic by the non-correlation of various characters. In recent studies, neither Blanchard (2008) nor Alexander (2010) recognize varieties in our flora area. K. smilacifolia A. Gray, of peninsular FL, appears to warrant specific status, as treated by Small (1933). It also appears that the supposedly "Eurasian" K. pentacarpos represents an early introduction of North American Kosteletzkya to the Old World (probably via ship’s ballast) and is conspecific; K. pentacarpos (based on European material) has nomenclatural priority over K. virginica (Blanchard 2008).

Synonymy : = Va, WI; = Hibiscus pentacarpos L., basionym; = Kosteletskya virginica (L.) C.Presl ex A.Gray – RAB, orthographic variant; = Kosteletzkya pentacarpos (L.) Ledeb. var. pentacarpos – K3, K4, NY, Alexander (2010), Weeks (2017b) in Weakley et al (2017); > Kosteletzkya althaeifolia (Chapm.) Rusby – S, S13; < Kosteletzkya pentacarpos (L.) Ledeb. – Fl4, FNA6, WH3, Blanchard (2008); > Kosteletzkya virginica (L.) C.Presl ex A.Gray – GW2, K1, S, S13, Tat; > Kosteletzkya virginica (L.) C.Presl ex A.Gray var. althaefolia – Tx, orthographic variant; > Kosteletzkya virginica (L.) C.Presl ex A.Gray var. althaeifolia Chapm. – F, G; > Kosteletzkya virginica (L.) C.Presl ex A.Gray var. aquilonia Fernald – C, F, G; > Kosteletzkya virginica (L.) C.Presl ex A.Gray var. virginica – C, F, G

Links to other floras: < Kosteletzkya pentacarpos - FNA6

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL (taxonomic split from wetland indicator species)
  • Great Plains: OBL (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: OBL (taxonomic split from wetland indicator species)

Heliophily : 9

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Conway Hawn, some rights reserved (CC BY), uploaded by Conway Hawn source CC-BY | Original Image ⭷
image of plant© Keith Bradley | Original Image ⭷
image of plant© Jay Horn source
image of plant© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward source CC-BY | Original Image ⭷
image of plant© Jay Horn source
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Collectors SOS | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward source CC-BY | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Collectors SOS | Original Image ⭷
image of plant© Collectors SOS | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect, shrublike perennial found in brackish to freshwater tidal marshes.

Stems: Stems several arising from a semi-woody crown, covered with branched hairs and sometimes gray as a result.

Leaves: Leaves alternate, on long petioles with linear stipules that may drop early, heart-shaped to oval or triangular (upper leaves more lance-shaped), to 5 1/2 in. long, often lobed, coarsely toothed and covered with branched hairs.

Inforescence:

Flowers: Flowers in leafy axillary and terminal racemes; pink to lavender (occasionally white); to 3 in. wide; consisting of 5 spreading oblong-oval petals and, in the center, an erect tube of yellow stamens fused around a pistil. A whorl of linear, hairy bracts is at the flower base, surrounding the 5-lobed calyx.

Fruits: Fruit a 5-celled, flattened-round capsule.

Comments:

Height: 1-5 ft.

plant sale text: Bright pink flowers adorn this member of the hibiscus family in late summer. Seashore-mallow blooms profusely and has a shrub-like effect in the garden once established. Its flowers are a good source of nectar for butterflies and hummingbirds. Seashore-mallow commonly grows in brackish marshes in coastal North Carolina. Try growing Seashore-mallow with native asters or great blue lobelia. 1990 N.C. Wildflower of the Year

bloom table text: Bright pink flowers adorn this member of the hibiscus family in late summer. Seashore-mallow blooms profusely and has a shrub-like effect in the garden once established. Its flowers are a good source of nectar for butterflies and hummingbirds. Seashore-mallow commonly grows in brackish marshes in coastal North Carolina. Try growing Seashore-mallow with native asters or great blue lobelia. 1990 N.C. Wildflower of the Year

description: Erect, shrublike perennial found in brackish to freshwater tidal marshes.

stems: Stems several arising from a semi-woody crown, covered with branched hairs and sometimes gray as a result.

leaves: Leaves alternate, on long petioles with linear stipules that may drop early, heart-shaped to oval or triangular (upper leaves more lance-shaped), to 5 1/2 in. long, often lobed, coarsely toothed and covered with branched hairs.

inflorescence:

flowers: Flowers in leafy axillary and terminal racemes; pink to lavender (occasionally white); to 3 in. wide; consisting of 5 spreading oblong-oval petals and, in the center, an erect tube of yellow stamens fused around a pistil. A whorl of linear, hairy bracts is at the flower base, surrounding the 5-lobed calyx.

fruits: Fruit a 5-celled, flattened-round capsule.

comments:

cultural notes:

germination code: 3

native range: southeastern United States