Chiba University Matsudo/Kashiwa Campus Plant Database

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Details of Genus: Nymphoides Ség. (1754)

ID: 538

Genus ja: アサザ

Genus en: Floating heart

# spp.: 52 (from genus_families table) | 3 (from names table)

Accepted: Accepted

Family: Menyanthaceae

Family ja: ミツガシワ

Infra familial classification:

Citation:
Data sourceKind of informationNote
Kew Gardens (2017) Plants of the world online (POWO). Accessed on 02 Nov 2025Scientific name & others Show this Data source

Distribution en: Cosmopolitan

Description en: Genus of 20 species of rhizomatous, herbaceous, submerged aquatic perennials occurring worldwide. They are often found in shallow, still water in lakes and ponds, where they spread rapidly, the leaves forming a floating carpet. Leaves are rounded with heart-shaped bases, or kidney-shaped, and grow from thin, creeping, branched rhizomes. The yellow or white, fringed flowers, resembling miniature water lilies (Nymphaea), are held above the surface of the water. Grow in a wildlife pool with water lilies or Nuphar species. In frost-prone areas, grow tender species in a greenhouse pool or aquarium.

Hardiness en: Fully hardy to frost tender.

Cultivation en:

Propagation en: Separate runners during summer.

Pests en: Trouble free.

Description ja:

Comment: Cosmopolitan

Comment ja:

Type species: Nymphoides peltata (S.G.Gmel.) Kuntze (1891) Accepted

Phylogenetic definition:

Update information: Created: 2007-12-06 12:51; Updated: 2026-02-27 22:00 by hkokubun@mac.com

Family:

System Accepted? Botanical name Japanese name Infra-familial classification # species
APG4 Accepted Menyanthaceae ミツガシワ科 52 Show
PB2 Menyanthaceae ミツガシワ科 Show
PB3 Menyanthaceae ミツガシワ科 Show