Callitriche terrestris |
Callitriche longipedunculata |
|
---|---|---|
terrestrial water-starwort |
longstock water-starwort |
|
Stem | and leaf scales present. |
and leaf scales present. |
Leaves | connate at base, obovate-oblanceolate to spatulate, 1.5–3.9 × 0.8–1.4(–1.5) mm, 2+-veined. |
connate at base, spatulate, 2.8–5 × 1.8–3.3 mm, 1+-veined. |
Inflorescences | bracts absent. |
bracts caducous. |
Pedicels | 0.4–0.6 mm in fruit. |
0–25 mm in fruit. |
Flowers | usually solitary or 1 staminate and 1 pistillate opposed by 1 pistillate; styles deflexed; pollen yellow. |
usually 1 staminate and 1 pistillate in 1 axil opposed by 1(+) pistillate; styles erect and spreading to recurved; pollen yellow. |
Schizocarps | (0.5–)0.6–0.7(–0.8) × (0.5–)0.8–1 mm, shorter than wide; mericarps black, not swollen, winged only at apex, wings straight, 0.01–0.03 mm wide. |
0.9–1.4 × 0.8–1.2 mm, as long as or longer than wide; mericarps black, not swollen, evenly winged throughout, wings straight, 0.03–0.1 mm wide. |
2n | = 10. |
|
Callitriche terrestris |
Callitriche longipedunculata |
|
Phenology | Flowering Apr–Jul(–Aug), Nov–Dec. | Flowering Mar–May. |
Habitat | Seasonally wet hollows, damp soils, cultivated fields, rocky grounds, paths, tracks, sandy bars. | Vernal pools. |
Elevation | 0–600 m. (0–2000 ft.) | 0–700 m. (0–2300 ft.) |
Distribution |
AR; CT; DC; IL; IN; KS; KY; LA; MA; MO; MS; NC; ND; NY; OH; PA; TN; TX; VA; NB; Mexico; Central America; South America [Introduced in Asia (China, Japan)]
|
CA |
Discussion | Callitriche longipedunculata is known from most of California, including the Inner North Coast Ranges, Cascade Range Foothills, Great Central Valley, San Francisco Bay Area, and western Pensisular Ranges (R. V. Lansdown and R. E. Preston, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=16691). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 17, p. 54. | FNA vol. 17, p. 52. |
Parent taxa | Plantaginaceae > Callitriche | Plantaginaceae > Callitriche |
Sibling taxa | ||
Synonyms | C. marginata var. longipedunculata | |
Name authority | Rafinesque: Med. Repos., hexade 2, 5: 358. (1808) — (as terrestre) | Morong: Bull. Torrey Bot. Club 18: 236. (1891) |
Web links |