Alisma gramineum Lej.
  • Fl. Spa
  • Grass-leaved water-plantain, alisma graminoide

This taxon is accepted by Alismataceae
Notes: More details could be found in The Plant List v.1.1. Originally in The Plant List v.1.0

General Description

Herbs, 0.5--30(--50) cm. Leaves submersed, floating, or emersed; submersed sessile, ribbonlike; floating linear, 15--100 ´ 0.2--2(--3) cm, blade present or absent; emersed petiolate, rarely sessile, blade linear-lanceolate, lanceolate, or narrowly elliptic, 4--2--6 ´ 1.5 cm. Inflorescences to 50 cm. Flowers cleistogamous in submersed plants, chasmogamous in terrestrial; sepals 1.5--3 mm; petals faint purplish white, 2--4 mm, margin entire to slightly erose, apex obtuse; anthers ovoid, 0.3--0.6 mm; style ± coiled, 0.4--0.5 mm, ½ length ovary. Fruiting heads 3--6 mm diam.; achenes orbicular to orbicular-ovoid, 2--2.7 mm, with 2 shallow, abaxial grooves lateral to 1 abaxial ridge, beak erect. 2n =14.


Common Names

Grass-leaved water-plantain, alisma graminoide

 Information From

World Flora Online Data. 2017.
  • A CC0 1.0 Universal (CC0 1.0).
Flora of North America @
'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  • B Flora of North America Association
World Flora Online consortium
World Flora Online Data. 2018.
  • C CC0 1.0 Universal (CC0 1.0).
International Union for Conservation of Nature
IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
  • D See IUCN Terms and conditions of use