Juncus dichotomus

Elliott

1: 406. 1817.

Synonyms: Juncus dichotomus var. platyphyllus Wiegand Juncus tenuis var. dichotomus (Elliott) A. W. Wood Juncus tenuis var. platyphyllus (Wiegand) Cory Juncus platyphyllus
Treatment appears in FNA Volume 22.

Herbs, perennial, to 10 dm. Rhizomes densely branched to short- creeping. Cataphylls 1–3. Leaves basal, (1-)2-3; auricles 0.2-0.5(-0.6) mm, scarious to leathery; blade nearly terete, channeled or flat, 10-25(-40) cm × (0.5-)0.7-1(-1.2) mm, margins entire. Inflorescences terminal, (5–)10–85(–100)-flowered, congested to somewhat loose, (1-)2.5-10(-13) cm; primary bract usually exceeding inflorescence. Flowers: bracteoles 2; tepals green, lanceolate, (3-)3.3-4.5(-5.5) mm; outer and inner series nearly equal; stamens 6, filaments 0.6–1.2 mm, anthers 0.4-0.8(-1) mm; style 0.2 mm. Capsules tan to brown, 1-locular to pseudo-3-locular, ellipsoid to widely so, (2.5-)2.8-3.5(-4.5) × 1x 1.6-2.2 mm. Seeds brownish to amber, ellipsoid to lunate, 0.3-0.4 mm, not tailed. 2n = ca. 80.


Phenology: Flowering and fruiting late spring–summer.
Habitat: Ditches, shores, clearings, and other typically open areas, usually in sandy, well-drained (but frequently wet) soil

Distribution

V22 480-distribution-map.jpg

Ala., Ark., Colo., Conn., Del., D.C., Fla., Ga., Ky., La., Md., Mass., Miss., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Tex.as, Va., W.Va., Mexico, Central America, South America.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Juncus dichotomus"
Ralph E. Brooks* +  and Steven E. Clemants* +
Elliott +
Ala. +, Ark. +, Colo. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ky. +, La. +, Md. +, Mass. +, Miss. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex.as +, Va. +, W.Va. +, Mexico +, Central America +  and South America. +
Ditches, shores, clearings, and other typically open areas, usually in sandy, well-drained (but frequently wet) soil +
Flowering and fruiting late spring–summer. +
Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen +
Juncus dichotomus var. platyphyllus +, Juncus tenuis var. dichotomus +, Juncus tenuis var. platyphyllus +  and Juncus platyphyllus +
Juncus dichotomus +
Juncus subg. Poiophylli +
species +