Callitriche hermaphroditica L.
northern water-starwort
Plantaginaceae (Mare's-tail family)
(Previously in Callitrichaceae)

Introduction to Vascular Plants

Photograph

© Jamie Fenneman     (Photo ID #30171)


Map

E-Flora BC Static Map

Distribution of Callitriche hermaphroditica
Click here to view the full interactive map and legend

Species Information

General:
Aquatic or semi-aquatic perennial rooting in mud; stems slender, 5-15 cm long, with widely spaced internodes.
Leaves:
All opposite; linear, 5-20 mm long, single-nerved, their bases not joined by a ridge or wing, light green.
Flowers:
Inflorescence of tiny, inconspicuous flowers borne without bracts, stalkless or shortly-stalked; styles soon deciduous, ascending.
Fruits:
Achene-like, 4, each 1-seeded, wingless, 1-2 mm long, egg-shaped, irregularly pitted.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

USDA Species Characteristics

Flower Colour:
Green
Blooming Period:
Late Summer
Fruit/Seed characteristics:
Colour: Green
Present over the Fall
Source:  The USDA

Ecology

Ecological Framework for Callitriche hermaphroditica

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
675 675 675
Slope Gradient (%)
0 0 0

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

0
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 5 5
Modal Nutrient Regime
Class
B
# of field plots
 species was recorded in:
1
Modal BEC Zone Class
IDF

All BEC Zones (# of stations/zone) species was recorded in

IDF(1)

Habitat and Range

Slow-moving streams, lakes and sloughs in the lowland, steppe and montane zones; common in SW BC, less frequent in SC and SE BC; circumboreal, N to AK, YT and NT, E to NF and S to MN, MI, NM and CA; Eurasia.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Callitriche autumnalis L.