Juncus hemiendytus |
Juncus scirpoides |
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blood rush, dwarf rush, Herman's dwarf rush, Hermann's dwarf rush, juncus hemiendytus |
needlepod rush, scirpuslike rush |
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Habit | Herbs, annual, cespitose, 0.03–0.36 dm. | Herbs, perennial, rhizomatous, tosometimes nearly cespitose, 0.8–7 dm. | ||||
Rhizomes | usually tuberous, 2–4 mm diam. |
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Culms | to 5. |
erect, terete, 1–3 mm diam., smooth. |
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Cataphylls | 0–1. |
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Leaves | to 1.8 cm, 1/2–1 1/3 height of plant. |
basal 1–2, cauline 2–3, green; auricles 1–2 mm, apex rounded, membranaceous; blade terete, 2–23 cm × 1–2 mm, distal cauline leaf blade 1.6–26 cm, equaling or longer than sheath. |
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Inflorescences | solitary flowers. |
terminal panicles of 1–23(–32) heads, 2.5–9 cm, branches ascending to erect; primary bracts erect; heads 20–60-flowered, spheric or usually lobed, 6–11 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, lance-subulate, 2–3.5 mm, nearly equal, apex acuminate; stamens 3, anthers 1/3 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, straw-colored, 1-locular, lance-subulate, 3–4 mm, apex tapering, remaining attached at tip, valves not separating at dehiscence, fertile throughout or only proximal to middle. |
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Seeds | ovoid to oblate, 0.3–0.55 mm. |
oblong, 0.4 mm, not tailed; body clear yellow-brown. |
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Juncus hemiendytus |
Juncus scirpoides |
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Phenology | Fruiting early summer–fall. | |||||
Habitat | Wet sandy soil, salt marshes, lake shores, ditches, meadows, wet woods | |||||
Elevation | 0–1400 m (0–4600 ft) | |||||
Distribution |
AL; AR; DC; DE; FL; GA; IL; IN; KS; KY; LA; MD; MI; MO; MS; NC; NE; NJ; NY; OK; PA; SC; TN; TX; WV; Va
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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. echinatus, J. scirpoides var. compositus, J. scirpoides var. genuinus, J. scirpoides var. macrostemon, J. scirpoides var. meridionalis | ||||
Name authority | F. J. Hermann: Leaflets of Western Botany 5: 118. (1948) | Lamarck: in J. Lamarck et al., Encycl. 3: 267. (1789) | ||||
Web links |
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