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VicFlora Flora of Victoria

Plantae
Tracheophyta
Magnoliopsida
Alismatales
Hydrocharitaceae
Najas
Sibling

Najas marina

L.

Sp. Pl.: 1015 (1753)

Taxonomic status Accepted

Occurrence status Present

Establishment means Native

Degree of establishment Native

Threat status

FFG: Critically Endangered (CR)

Herb up to 3 m long; dioecious. Leaves 20–50 × 2–5 mm, length to width ratio 7.5–15; sheath truncate to blunt distally, auricles absent; lamina margin with teeth c. 0.6–0.7 mm long; dorsal surface with 1–many teeth; leaf-sheath scales blunt and often asymmetrical. Flowers solitary. Male flowers with outer cup-like structure 3–4 mm long. Female flowers 1.9–4 mm long; stigmas 2–4.

WaP, EGL. Also WA, NT, Qld, NSW. Tropical and warmer parts of Europe and Africa, to Japan and Malesia (excluding New Guinea), North and South America. Only one recent collection in Victoria, from the brackish Swan Lake, east of Sydenham Inlet, East Gippsland. Extensive subsurface growth of this species can interfere with boating and fishing (Sainty & Jacobs 1981).

Source:

Conn, B.J. (1994). Najadaceae. In: Walsh, N.G.; Entwisle, T.J., ‍Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons‍, pp. 155–156. Inkata Press, Melbourne.

Najas marina (hero image)

Spinning

Najas marina (distribution map)

Spinning

kingdom

phylum

class

order

family

Hydrocharitaceae

genus

Higher taxa

species

Najas marina L.

Subordinate taxa

Flora of Australia

New South Wales Flora

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