FNA: Callitriche stagnalis

	Callitriche stagnalis
	callitriche des eau× stagnantes, pond water-starwort
Stem	and leaf scales present.
Leaves	connate at base, obovate-spatulate to ± round, 4–9 × 1–4 mm, 1+-veined.
Inflorescences	bracts persistent.
Pedicels	0–0.2 mm in fruit.
Flowers	solitary; styles erect; pollen yellow.
Schizocarps	1.2–1.8 × 1–1.7 mm, ± as long as wide; mericarps pale grayish brown, not swollen, winged throughout, wings straight, 0.1–0.5 mm wide.
2n	= 10.

	Callitriche stagnalis
Phenology	Flowering May–Oct.
Habitat	Standing water, stream margins, backwaters, ponds, pools, ditches.
Elevation	0–1500 m. (0–4900 ft.)
Distribution	AL; CA; CT; MA; MD; ME; MO; MT; NJ; NY; OR; PA; VA; WA; WI; BC; NF; QC; SPM; Europe [Introduced in North America; introduced also in Australia] [WildflowerSearch map] [BONAP county map]
Source	FNA vol. 17, p. 54.
Parent taxa	Plantaginaceae > Callitriche
Sibling taxa	C. brutia, C. fassettii, C. hermaphroditica, C. heterophylla, C. longipedunculata, C. marginata, C. palustris, C. pedunculosa, C. peploides, C. stenoptera, C. terrestris, C. trochlearis
Name authority	Scopoli: Fl. Carniol. ed. 2, 2: 251. (1772)
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, Go Botany, MD Biodiversity, MO Plants, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

callitriche des eau× stagnantes, pond water-starwort

Stem

and leaf scales present.

Leaves

connate at base, obovate-spatulate to ± round, 4–9 × 1–4 mm, 1+-veined.

Inflorescences

bracts persistent.

Pedicels

0–0.2 mm in fruit.

Flowers

solitary;

styles erect;

pollen yellow.

Schizocarps

1.2–1.8 × 1–1.7 mm, ± as long as wide;

mericarps pale grayish brown, not swollen, winged throughout, wings straight, 0.1–0.5 mm wide.

= 10.

Phenology

Flowering May–Oct.

Habitat

Standing water, stream margins, backwaters, ponds, pools, ditches.

Elevation

0–1500 m. (0–4900 ft.)

Distribution

AL; CA; CT; MA; MD; ME; MO; MT; NJ; NY; OR; PA; VA; WA; WI; BC; NF; QC; SPM; Europe [Introduced in North America; introduced also in Australia]

Source

Parent taxa

Sibling taxa

Name authority

Scopoli: Fl. Carniol. ed. 2, 2: 251. (1772)

Web links

Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

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