Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Callitriche brutia var. hamulata

Callitriche brutia
Photo is of parent taxon

narrow leaf water-starwort, pedunculate water-starwort

narrow-leaf water-starwort
Stem

and leaf scales present.

Leaves

connate at base, ± linear, tapering strongly from near base or spatulate, 5.4–18 × 0.3–3 mm, 1+-veined.

Inflorescences

bracts caducous.

Pedicels

0 mm, rarely less than 2 mm in fruit.

Flowers

usually solitary;

styles reflexed, appressed to ovary;

pollen colorless.

Schizocarps

1.1–1.5(–1.6) × 1.1–1.4 mm, as long as wide;

mericarps blackish, not swollen, winged throughout, wings straight, 0.03–0.3 mm wide.

2n

= 38.

Callitriche brutia var. hamulata

Callitriche brutia
Phenology Flowering Jul–Sep.
Habitat Fast-flowing streams, backwaters, lakes, pools.
Elevation 0–1600 m. (0–5200 ft.)
Distribution
from FNA
OR; WA; BC; Greenland; Europe
[BONAP county map]
from FNA
OR; WA; BC; Europe; Africa [Introduced to Australia]
[BONAP county map]
Discussion

Variety hamulata is considered native in Greenland and is introduced in other parts of the flora area; the earliest specimen of var. hamulata known from western North America is from Oregon in 1956 (Steward 7238, MO).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Varieties 2 (1 in the flora).

Variety brutia is known from Europe and Africa plus is introduced to Australia; it differs from var. hamulata in chromosome number (2n = 28) and pedicellate fruit.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 50. FNA vol. 17, p. 50.
Parent taxa Plantaginaceae > Callitriche > Callitriche brutia Plantaginaceae > Callitriche
Sibling taxa
C. fassettii, C. hermaphroditica, C. heterophylla, C. longipedunculata, C. marginata, C. palustris, C. pedunculosa, C. peploides, C. stagnalis, C. stenoptera, C. terrestris, C. trochlearis
Subordinate taxa
C. brutia var. hamulata
Synonyms C. hamulata, C. intermedia, C. intermedia subsp. hamulata
Name authority (Kützing e× W. D. J. Koch) Lansdown: Watsonia 26: 113. (2006) Petagna: Inst. Bot. 2: 10. (1787)
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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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

The species comparison tool is brought to you by:
Northwest Wildflowers