Juncus hemiendytus |
Juncus torreyi |
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blood rush, dwarf rush, Herman's dwarf rush, Hermann's dwarf rush, juncus hemiendytus |
Torrey's rush |
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Habit | Herbs, annual, cespitose, 0.03–0.36 dm. | Herbs, perennial, rhizomatous, (3–)4–10 dm. | ||||
Rhizomes | 1–3 mm diam., with swollen nodes. |
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Culms | to 5. |
erect, terete, 3–5 mm diam., smooth. |
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Cataphylls | 0. |
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Leaves | to 1.8 cm, 1/2–1 1/3 height of plant. |
basal 1–3, cauline 2–5, auricles 1–4 mm, apex rounded, scarious; blade strawberry-colored, green, or pink, terete, 13–30 cm × 1–5 mm. |
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Inflorescences | solitary flowers. |
terminal clusters of 1–23 heads or single heads, 2–5.5 cm, branches spreading; primary bract erect to ascending; heads 25–100-flowered, globose, 10–15 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 green to straw-colored, occasionally reddish, lanceolate-subulate; outer tepals (3.7–)4–6 mm, apex acuminate; inner tepals (3–) 3.4–4.6 mm, apex acuminate; stamens 6, anthers 1/2 filament length. |
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Capsules | reddish, 2–- or 3-locular, obovoid to ellipsoid or oblate, 1.9–3.5 × 1–2 mm. |
equaling perianth or slightly exserted, straw-colored or chestnut brown, 1-locular, lance-subulate, 4.3–5.7 mm, apex tapering to subulate tip, valves separating at dehiscence, fertile throughout or only proximal to middle. |
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Seeds | ovoid to oblate, 0.3–0.55 mm. |
oblong to ellipsoid, 0.4–0.5 mm, not tailed; body clear yellow-brown. |
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2n | = 40. |
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Juncus hemiendytus |
Juncus torreyi |
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Phenology | Fruiting early summer–fall. | |||||
Habitat | Wet sandy shores, edges of sloughs, along slightly alkaline watercourses, swamps, sometimes on clay soils, calcareous wet meadows, and alkaline soils | |||||
Elevation | 0–600 | |||||
Distribution |
AL; AR; AZ; CA; CO; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; MT; ND; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; ON; QC; SK; Mexico (Baja California, probably elsewhere in n Mexico)
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Discussion | Varieties 2 (2 in the flora). (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 | J. nodosus var. megacephalus, J.uncus megacephalus, J.uncus nodosus var. megacephalus, J.uncus megacephalus | ||||
Name authority | F. J. Hermann: Leaflets of Western Botany 5: 118. (1948) | Coville: Bulletin of the Torrey Botanical Club 22:303. (1895) | ||||
Web links |
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