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Hydrolea quadrivalvis Walter. Waterpod. Phen: Jun-Sep. Hab: Swamp forests, backwater sloughs, especially in cypress-gum forests, marshes, ditches. Dist: Se. VA south to c. peninsular FL, west to LA.

Origin/Endemic status: Endemic

Synonymy ⓘ: = C, F, Fl6, FNA14, G, GW2, K1, K3, K4, RAB, Tn, Va, WH3; = n/a – Tat; = Nama quadrivalve (Walter) Kuntze – S

Links to other floras: = Hydrolea quadrivalvis - FNA14

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL
  • Eastern Mountains and Piedmont: OBL

Heliophily ⓘ: 5

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image of plant© Jeffrey S. Pippen | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Jeffrey S. Pippen | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect to spreading aquatic perennial found in swamp forests, especially cypress-gum forests, and in backwater sloughs, marshes and ditches.

Stems: Stems stout, succulent, branched, the upper part covered in stiff spreading hairs; lower portion trailing and rooting at nodes to form mats.

Leaves: Leaves alternate, short-petiolate to sessile, elliptic to lance-shaped, 2-5 in. long, smooth to sparsely hairy. There are spines to 1/2 in. long in some leaf axils.

Inforescence:

Flowers: Flowers in small clusters in upper leaf axils; blue or bluish-purple; broadly bell-shaped; consisting of 5 oval petals, 5 narrow sepals with spreading hairs like those on stem, 5 stamens and a green ovary in the center.

Fruits: Fruit a round capsule surrounded by persistent calyx.

Comments:

Height: to 1 1/2 ft.

plant sale text:

bloom table text:

description: Erect to spreading aquatic perennial found in swamp forests, especially cypress-gum forests, and in backwater sloughs, marshes and ditches.

stems: Stems stout, succulent, branched, the upper part covered in stiff spreading hairs; lower portion trailing and rooting at nodes to form mats.

leaves: Leaves alternate, short-petiolate to sessile, elliptic to lance-shaped, 2-5 in. long, smooth to sparsely hairy. There are spines to 1/2 in. long in some leaf axils.

inflorescence:

flowers: Flowers in small clusters in upper leaf axils; blue or bluish-purple; broadly bell-shaped; consisting of 5 oval petals, 5 narrow sepals with spreading hairs like those on stem, 5 stamens and a green ovary in the center.

fruits: Fruit a round capsule surrounded by persistent calyx.

comments:

cultural notes:

germination code:

native range: