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Electronic Flora of South Australia species Fact Sheet

Family: Plantaginaceae
Callitriche hamulata

Citation: Kütz. in Koch, Syn. Fl. Germ. Heir. edn 1, 1:246 (1836). (111. Aston (1973) Aquatic plants of Australia, fig. 19a-d; Orchard (1980) J. Adelaide Bot. Gard. 2:192, fig. 1j-1.)

Synonymy: Not Applicable

Common name: None

Description:
Aquatic or terrestrial herb; leaves in aquatic plants of 2 types, submerged leaves linear, 6-30 mm long, 0.5-1 mm wide, deeply notched at the tip, with a single mid-vein, rosette leaves spathulate, c. 3-4 mm long, 1.3-1.7 mm wide, more or less emarginate, 3-nerved; leaves of the land form linear-elliptic to elliptic, 1- rarely 2- or 3-nerved.

Flowers solitary in the leaf axils, bracteoles absent or rarely present; stamen 0.6-1 mm long; styles deflexed close to the fruit, deciduous.

Fruit sessile or on a pedicel to 15 mm long, dark-brown to greyish, longer than broad or almost isodiametric, 1.1-1.2 mm long, 0.9-1 sometimes to 1.4 mm wide, pale narrow wing running around the top and the base of the nutlets, commissural groove broad and shallow, face of fruit virtually flat.

image of FSA3_Callitriche_ham.jpg Fruit in three views.
Image source: fig. 552A in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).

Distribution:    Vic..   New Zealand; Native to Europe and Greenland.

Conservation status: naturalised

Flowering time: Aug. — Jan.


SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: No text

Author: Not yet available


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