Myriophyllum variifolium Hook.f. APNI*
Synonyms: Myriophyllum propinquum var. genuinum Schindl. APNI*
Myriophyllum propinquum var. genuinum Schindl. APNI*
Myriophyllum variaefolium Hook.f., orth. var. APNI*
Description: Perennial aquatic herb; stems up to 5 mm diam., rooting at the nodes in shallow water.
Emergent leaves in whorls of usually 5 linear to terete, entire or the lowermost with a few teeth, mostly 8–15 mm long, up to 1 mm wide.
Plants monoecious; male and female flowers on the same shoot, rarely all female, solitary in the axils. Male flowers sessile; sepals circular to oblong; petals 2–3.5 mm long, yellow to reddish. Female flowers sessile; sepals and petals absent; stigmas white. Mericarps cylindrical, c. 1.5 mm long, yellowish brown to pale reddish, smooth or weakly and minutely papillose.
Distribution and occurrence: Grows in still or slowly flowing water.
NSW subdivisions: NC, CC, SC, NT, CT, ST, CWS, NWP
Other Australian states: Vic. Tas. S.A.
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.