Flora of North America species comparison

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Callitriche peploides

Matted water-starwort
Stem

and leaf scales present.
Leaves

connate at base, spatulate-obovate, 1.4–2.3 × 0.4–1.5 mm, 2+-veined.
Inflorescences

bracts absent.
Pedicels

0 mm in fruit.
Flowers

not solitary, usually 1 staminate and 1 pistillate in 1 axil opposed by 1 pistillate;

styles erect to reflexed;

pollen yellow.
Schizocarps

0.4–0.7 × 0.7–0.9 mm, shorter than wide;

mericarps black, swollen at base, not winged or winged only at apex, wings straight, 0–0.03 mm wide.
2n

= 10.

Callitriche peploides
Phenology Flowering (Jan–)Feb–Apr(–May), Oct–Dec.
Habitat Seasonally damp hollows, sandy soils in woodlands, gardens, waste grounds, rocky areas.
Elevation 0–100 m. (0–300 ft.)
Distribution
from FNA
AL; AR; CA; FL; GA; LA; MS; TX [Introduced in Asia (China, Taiwan), Indian Ocean Islands (Madagascar, Réunion), Pacific Islands (New Zealand)]
[WildflowerSearch map]
[BONAP county map]
Discussion

Three varieties of Callitriche peploides have been recognized (N. C. Fassett 1951b). A collection reported as a weed of a container in a nursery in San Bernardino County, California (T. C. Fuller 1967) is referable to var. semialata. The characters used to distinguish these varieties do not appear reliable, and it seems best to disregard them (R. V. Lansdown and M. J. M. Christenhusz 2011).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 53.
Parent taxa Plantaginaceae > Callitriche
Sibling taxa
C. brutia, C. fassettii, C. hermaphroditica, C. heterophylla, C. longipedunculata, C. marginata, C. palustris, C. pedunculosa, C. stagnalis, C. stenoptera, C. terrestris, C. trochlearis
Synonyms C. peploides var. semialata
Name authority Nuttall: Trans. Amer. Philos. Soc., n. s. 5: 141. (1835)
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).



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