PlantNET Home PlantNET Home | Search NSW Flora | Contact Us  
FloraOnline
Introduction
Plant Name Search
Index Search
Spatial Search
Identification Keys
Classification
Glossary
HerbLink (Type Images)
WeedAlert
Other PlantNET Sites
Other Data Sources
NEW SOUTH WALES FLORA ONLINE Printable Page

Myriophyllum alpinum Orchard
Family Haloragaceae
Myriophyllum alpinum Orchard APNI*

Description: Perennial aquatic herb; stems 1–2 mm diam., rooting freely at the lower nodes.

Emergent leaves usually crowded at the apex, reddish, in whorls of 3 or 4, ovate and deeply pinnatifid into 6–9 segments, c. 5 mm long, 3–5 mm wide or linear to lanceolate and toothed, c. 35 mm long and 1 mm wide.

Plants monoecious; male and female flowers on the same shoot, solitary in the axils. Male flowers ± sessile; sepals triangular to ovate; petals 3–3.5 mm long, red to yellow. Female flowers sessile; sepals and petals absent; stigmas white. Mericarps ovoid, up to 1 mm long, reddish purple, sparsely papillose.


Type
Specimen

Distribution and occurrence: in high-altitude lakes and streams; forms densely interwoven masses in relatively deep water.
NSW subdivisions: NC, NT, CT, ST
Other Australian states: Vic.
AVH map***

Text by Peter G. Wilson
Taxon concept: A.E. Orchard (1990)


APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
  Privacy | Copyright | Disclaimer | About PlantNET | Cite PlantNET