Ornduffia

Scientific name

Ornduffia Tippery & Les

Family

Menyanthaceae

Similar genera

Nymphoides, Ottelia, Villarsia

Native distribution

Australia

Species cultivated

typically offered under their Villarsia synonyms

Ornduffia albiflora (F.Muell.) Tippery & Les [offered under the synonym Villarsia albiflora F. Muell.]

O. parnassifolia (Labill.) Tippery & Les

O. reniformis (R. Br.) Tippery & Les [offered under the synonym Villarsia reniformis R. Br.]

O. umbricola (Aston) Tippery & Les [synonym of Villarsia umbricola Aston]

Adventive distribution

information not available

Weed status

information not available

Habit

small rosetterosette:
(n) a radiating cluster of leaves, usually close to the ground at the base of a plant
to erect herb; submersedsubmersed:
see submerged
, floating, or emergentemergent:
(adj) (syn. emersed) with parts raised out of the water; extending up out of the water

Brief description

Leaves submersedsubmersed:
see submerged
, floating to emergentemergent:
(adj) (syn. emersed) with parts raised out of the water; extending up out of the water
, radicalradical:
(adj) (of leaves) proceeding from the root, as in basal leaves clustered at the base of the stem
; petiolepetiole:
(n) the stalk of a leaf
base sheathing; leaf bladeblade:
(n) (syn. lamina) the flat, expanded part of a leaf, frond, or petal (excluding, e.g., the petiole)
ovateovate:
(adj) egg-shaped in outline; generally with the broad end at or near the base
or ellipticalelliptical:
(adj) in the form of an ellipse (oval)
; margins entireentire:
(adj) having a continuous margin that is not toothed or lobed
to crenatecrenate:
(adj) (of a margin) with shallow, rounded teeth
-dentate. Inflorescenceinflorescence:
(n) the arrangement of flowers on the floral axis
a paniclepanicle:
(n) an indeterminate, branched (often much-branched) inflorescence; the ultimate units may be of a different inflorescence type
; sepals 5; petals 5, fused at base and with a fimbriatefimbriate:
(adj) fringed with long hairs or processes
throat, petalpetal:
(n) one segment of the corolla
margins entireentire:
(adj) having a continuous margin that is not toothed or lobed
or serrulateserrulate:
(adj) minutely serrate
, yellow or white; stamens 5, inserted on corollacorolla:
(n) the inner whorl(s) of the perianth; all the petals of a flower
tube; stigmasstigma:
(n) the portion of the pistil that is receptive to pollen
2.

Natural habitat

along or in shallow water of swamps, marshes and ponds

Additional comments

Ornduffia species are offered for use in water gardens. Species of this genus were originally placed within Villarsia, which was divided into three distinct genera based on molecular and morphological analyses: Villarsia, Liparophyllum and Ornduffia (Tippery and Les, 2009).