Callitriche stagnalis
Fl. Carniol. ed. 2, 2: 251. 1772.
Common names: Pond water-starwort callitriche des eau× stagnantes
WeedyIntroduced
Revision as of 19:08, 16 December 2019 by FNA>Volume Importer
Leaves connate at base, obovate-spatulate to ± round, 4–9 × 1–4 mm, 1+-veined. Stem and leaf scales present. 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.
Phenology: Flowering May–Oct.
Habitat: Standing water, stream margins, backwaters, ponds, pools, ditches.
Elevation: 0–1500 m.
Distribution
St. Pierre and Miquelon, B.C., Nfld. and Labr. (Nfld.), Que., Ala., Calif., Conn., Maine, Md., Mass., Mo., Mont., N.J., N.Y., Oreg., Pa., Va., Wash., Wis., Europe, introduced also in Australia.
Discussion
Selected References
None.
Lower Taxa
None.