Juncus caesariensis

Memoirs of the Torrey Botanical Club 5: 106. 1894.
Basionym: Juncus asper Engelmann Trans. Acad. Sci. St. Louis 2: 478. 1868,
Treatment appears in FNA Volume 22.
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Illustrator: Yevonn Wilson-Ramsey

Copyright: Flora of North America Association

Herbs, perennial, cespitose, 3–9 dm. Culms erect, 2–4 mm diam., scabrous. Cataphylls 0 or 1–2, straw-colored, apex acuminate. Leaves: basal 1–2, cauline 1–2; auricles 1–7.5 mm, apex rounded, scarious; blade terete, 4–25 cm × 1–1.8 mm, scabrous. Inflorescences panicles of 5–30 heads, 12–15 cm, erect to ascending branches; primary bract erect; heads 2–6-flowered, broadly obovoid, 5–10 mm diam. Flowers: tepals green to reddish brown, lanceolate; outer tepals 3.3–3.9 mm, apex acuminate; inner tepals 3.9–4.7 mm, acuminate; stamens 6, anthers 1/2 filament length. Capsules exserted, chestnut brown, 3-locular, ovoid, 4.5–5.3 mm, apex acuminate, valves separating at dehiscence. Seeds fusiform, 2.2–2.6 mm, tailed. ; seed body covered with whitish translucent veil.

Phenology: Fruiting mid summer–early fall.
Habitat: Wet springy bogs, swamps, and borders of wet woods
Elevation: 0–100 m


V22 482-distribution-map.jpg

N.S., Del., D.C., Md., N.J., N.C., Pa., Va.


Selected References


Lower Taxa


... more about "Juncus caesariensis"
Ralph E. Brooks* +  and Steven E. Clemants* +
Coville +
Juncus asper +
N.S. +, Del. +, D.C. +, Md. +, N.J. +, N.C. +, Pa. +  and Va. +
0–100 m +
Wet springy bogs, swamps, and borders of wet woods +
Fruiting mid summer–early fall. +
Memoirs of the Torrey Botanical Club +
Illustrated +  and Endemic +
Juncus sect. Septati +
Juncus caesariensis +
Juncus subg. Septati +
species +