Juncus kelloggii |
Juncus torreyi |
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Kellogg's dwarf rush, Kellogg's rush |
Torrey's rush |
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Habit | Herbs, annual, cespitose, 0.1–0.55(–0.65) dm. | Herbs, perennial, rhizomatous, (3–)4–10 dm. |
Rhizomes | 1–3 mm diam., with swollen nodes. |
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Culms | to 100. |
erect, terete, 3–5 mm diam., smooth. |
Cataphylls | 0. |
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Leaves | to 2.5 cm × 0.1–0.3 mm. |
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. |
Inflorescences | terminal clusters, each with 1–4 flowers; bracts subtending inflorescence 2–5, ovate to lanceolate, inconspicuous, 1–2.5 mm, membranous, apex acute to obtuse. |
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. |
Flowers | 3-merous; : tepals dark reddish brown, 2–3.2 × 0.4–1 mm, margins unpigmented; inner series nearly equal to or slightly shorter than outer series, acute to acuminate; stamens 3, filaments 0.7–1.3 mm, anthers 0.3–0.5 mm; style 0.2–0.5 mm, stigma 0.4–1.3 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. |
Capsules | dark reddish, 3-locular, obovoid to ellipsoid, nearly equal to tepals, 1.8–2.9 × 1.2–1.6 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. |
Seeds | ovoid, 0.4–0.55 mm, apiculate. |
oblong to ellipsoid, 0.4–0.5 mm, not tailed; body clear yellow-brown. |
n | = 17. |
|
2n | = 40. |
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Juncus kelloggii |
Juncus torreyi |
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Phenology | Flowering and fruiting spring–early summer. | Fruiting early summer–fall. |
Habitat | Sandy and clayey damp soils around vernal pools, seepage areas, and low spots in fields and meadows | Wet sandy shores, edges of sloughs, along slightly alkaline watercourses, swamps, sometimes on clay soils, calcareous wet meadows, and alkaline soils |
Elevation | 0–800 m (0–2600 ft) | 0–600 |
Distribution |
CA; NV; OR; WA; BC
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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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Source | FNA vol. 22. | FNA vol. 22. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | J. triformis var. brachystylus | J. nodosus var. megacephalus, J.uncus megacephalus, J.uncus nodosus var. megacephalus, J.uncus megacephalus |
Name authority | Engelmann | Coville: Bulletin of the Torrey Botanical Club 22:303. (1895) |
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