Juncus brevicaudatus |
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short-tailed rush |
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Habit | Plants perennial, 14–55 cm tall, cespitose. |
Leaves | basal and cauline; round; hollow, septate, 1–2 mm wide; auricles 0.5–3 mm. |
Inflorescences | 2–35 clusters; clusters mostly 2–5-flowered, elliptic to narrowly obconic, lacking bulblets. |
Flowers | tepals 6, green, red; pale or medium brown; tips acuminate; stamens 3; filaments 0.6–0.8 mm; anthers 0.3–0.5 mm; styles 0.1–0.3 mm. |
Capsules | 1–1.5 mm longer than the tepals, dark brown, 1-chambered. |
Seeds | narrowly ellipsoid to linear, 0.8–1.1 × 0.2–0.3 mm; body 0.5–0.6 mm; tails 0.2– 0.4 mm, 0.5–1 times as long as seed body. |
2n | =80. |
Juncus brevicaudatus |
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Distribution | |
Discussion | Wet acidic sandy banks, shores, mossy ditches, cranberry farms. 0–50 m. Est. ID, WA; northeastern US, Great Lakes area, southern Canada; AZ, CO, WY. Exotic. This species is native to northeastern Washington, northern Idaho, Montana, and eastern North America, but it is introduced in Oregon. |
Source | Flora of Oregon, volume 1, page 271 Peter Zika |
Sibling taxa | |
Web links |
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