Juncus hemiendytus |
Juncus elliottii |
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blood rush, dwarf rush, Herman's dwarf rush, Hermann's dwarf rush, juncus hemiendytus |
Elliott's rush |
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Habit | Herbs, annual, cespitose, 0.03–0.36 dm. | Herbs, perennial, cespitose, 3–9 dm. | ||||
Roots | often with terminal tubers. |
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Culms | to 5. |
erect, terete, 1–3 mm diam., smooth. |
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Cataphylls | 1, maroon to brown, apex acute. |
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Leaves | to 1.8 cm, 1/2–1 1/3 height of plant. |
basal 1–3, cauline 1–2; auricles 0.5–2 mm, apex rounded, scarious; blade green or maroon, compressed, 2–16 cm × 1–2 mm. |
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Inflorescences | solitary flowers. |
terminal panicles of 40–100(–200) heads, 4–16 cm, branches ascending to spreading; primary bract erect to ascending; heads 2–10-flowered, hemispheric to obpyramidal, 0.3–0.5 mm diam. |
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Flowers | 2-merous; : tepals 4(–6), erect to recurved at maturity, reddish, 1.5–3 × 0.5–1.2 mm; outer and outer series nearly equal, apex rounded to acute; stamens 2(–3), filaments 0.5–1.4 mm, anthers 0.3–0.7 mm; style 0.1–0.4 mm, stigma 2(–3), 0.3–1 mm. |
tepals straw-colored, lanceolate, apex acuminate; outer tepals (2.2–)2.6–2.9 mm; inner tepals (1.8–)2.4–2.8; stamens 3, anthers 2/3 to equal filament length. |
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Capsules | reddish, 2–- or 3-locular, obovoid to ellipsoid or oblate, 1.9–3.5 × 1–2 mm. |
exserted, chestnut brown, 1-locular, narrowly obpyriform to narrowly ovoid, 2.4–2.9 mm, apex acute, valves separating at dehiscence. |
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Seeds | ovoid to oblate, 0.3–0.55 mm. |
ellipsoid, 0.3–0.5 mm, not tailed; body clearly yellow-brown. |
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, with faint ringlike bands at position of septa. | ||||||
2n | = 40. |
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Juncus hemiendytus |
Juncus elliottii |
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Phenology | Fruiting summer. | |||||
Habitat | Wet sands, peaty sands, or peat, exposed shores of ponds and lakes, depressions in savannas and flatwoods, moist to wet, much disturbed clearings, roadsides and ditches | |||||
Elevation | 0–700 m (0–2300 ft) | |||||
Distribution |
AL; AR; DE; FL; GA; LA; MS; NC; NJ; SC; TN; TX; VA
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Juncus elliottii has tubers at the ends of the roots. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 22, p. 232. | FNA vol. 22. | ||||
Parent taxa | Juncaceae > Juncus > subg. Graminifolii | Juncaceae > Juncus > subg. Septati | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | J. brachystylus, J. brachystylus var. uniflorus, J. triformis var. uniflorus | |||||
Name authority | F. J. Hermann: Leaflets of Western Botany 5: 118. (1948) | Chapman: Fl. South. U.S. 494. (1860) | ||||
Web links |
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