Juncus gerardii

Loiseleur-Deslongchamps
J. Bot. (Desvaux) 2: 284. 1809.
Illustrated
Synonyms: Juncus bulbosus var. gerardii (Loiseleur-Deslongchamps) A. Gray Juncus fucensis H. St. John Juncus gerardii var. pedicellatus Fernald
Treatment appears in FNA Volume 22.

Herbs, perennial, 2–9 dm. Rhizomes long- creeping. Cataphylls 1–3. Leaves basal, (1–)2–4; auricles 0.4–0.6(–0.8) mm, scarious; blade flat or somewhat channeled, 10–40 cm × 0.4–0.7 mm, margins entire. Inflorescences 10–30(–80)-flowered, usually loose and somewhat lax, 2–16 cm; primary bract rarely surpassing inflorescence. Flowers: bracteoles 2; tepals dark brown or blackish, lanceolate-ovate to oblong, 2.6–3.2(–3.8) mm; inner and outer series nearly equal, apex obtuse; stamens 6, filaments 0.4–0.7 mm, anthers 1.1–1.6(–1.8) mm; style 0.4 mm. Capsules chestnut brown or brown, 3-locular, widely ellipsoid, (2.2–)2.5–3.2(–3.5) × 1.3–1.9 mm. Seeds dark brown, ellipsoid to lunate, 0.485–0.6(–0.67) mm, not tailed. 2n = ca. 80, 84.


Phenology: Flowering and fruiting late spring–summer.
Habitat: Forming extensive colonies in exposed coastal estuary meadows and salt marshes just above high- tide line, also inland

Distribution

V22 228-distribution-map.jpg

Greenland, St. Pierre and Miquelon, B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., Oreg., P.E.I., Que., Colo., Conn., Del., Ill., Ind., Kans., Ky., Maine, Md., Mass., Mich., Minn., Mo., N.H., Mont., N.J., N.Y., N.Dak., Ohio, Oreg., Pa., R.I., Utah, Vt., Va., Wash., Wis., Europe, Asia.

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Juncus gerardii"
Ralph E. Brooks* +  and Steven E. Clemants* +
Loiseleur-Deslongchamps +
Greenland +, St. Pierre and Miquelon +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, Oreg. +, P.E.I. +, Que. +, Colo. +, Conn. +, Del. +, Ill. +, Ind. +, Kans. +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, N.H. +, Mont. +, N.J. +, N.Y. +, N.Dak. +, Ohio +, Pa. +, R.I. +, Utah +, Vt. +, Va. +, Wash. +, Wis. +, Europe +  and Asia. +
Forming extensive colonies in exposed coastal estuary meadows and salt marshes just above high- tide line, also inland +
Flowering and fruiting late spring–summer. +
J. Bot. (Desvaux) +
Illustrated +
Juncus bulbosus var. gerardii +, Juncus fucensis +  and Juncus gerardii var. pedicellatus +
Juncus gerardii +
Juncus subg. Poiophylli +
species +