Luzula piperi |
Luzula divaricata |
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Piper's wood-rush, smooth woodrush |
fork wood rush |
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Rhizomes | horizontal, short. |
thick. |
Culms | densely cespitose, 10–30(–35) cm. |
densely cespitose, reddish, 6–30 cm × 2 mm. |
Leaves | basal blade green, 5–10 cm × 2–4 mm, firm, essentially glabrous; cauline leaves 2–3, 3–7 cm × 3–5 mm. |
basal leaves numerous, blade to 20 cm × 4–6 mm, sometimes longer than stem, apex long-pointed to 12 mm, mostly glabrous; cauline leaves 2–3. |
Inflorescences | branches spreading less than 90°, lax; proximal inflorescence bract leaflike, 0.8–1.5 cm; bracts and bracteoles brown, clear at apex, margins strongly ciliate. |
5–15 cm, width 1/2 to equaling length; branches widely spreading to 90°, stiff, not drooping; proximal bract inconspicuous, less than 2 cm; bracts and bracteoles clear, margins slightly lacerate, often with a few cilia. |
Flowers | single or in clusters of 2–3; tepals dark brown, 1–2.5 mm, ± equal, apex acute, not reflexed; anthers ± equaling filament length; stigmas 5 times style length. |
solitary; tepals pale brown with reddish tint, 1.8–2.4 mm, apex reflexed, long-acuminate; outer whorl slightly longer than inner whorl; anthers ± equaling filaments; stigmas 3 times style length. |
Capsules | dark brown, ellipsoid, shorter than 2.5 mm, longer than tepals; beak absent. |
deep reddish brown, shorter to slightly longer than tepals. |
Seeds | light yellow-brown, lanceolate, narrowed at ends, 1.2 mm. |
light brown, 1.2 mm. |
2n | = 24. |
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Luzula piperi |
Luzula divaricata |
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Phenology | Flowering and fruiting summer. | Flowering and fruiting summer. |
Habitat | Snowbeds and mesic heaths in subalpine and oceanic zones | Subalpine forest to alpine granitic slopes |
Elevation | 400–2400 m (1300–7900 ft) | 2100–3700 m (6900–12100 ft) |
Distribution |
AK; ID; MT; OR; WA; AB; BC; YT; e Asia
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CA; ID; NV; OR; WA
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Discussion | The culms of Luzula divaricata are reddish colored. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 22. | FNA vol. 22. |
Parent taxa | Juncaceae > Luzula > subg. Anthelaea | Juncaceae > Luzula > subg. Anthelaea |
Sibling taxa | ||
Synonyms | Juncoides piperi, L. wahlenbergii subsp. piperi | |
Name authority | (Coville) M. E. Jones: Bull. Biol. Ser. Bull. State Univ. Montana 15: 22. (1910) | S. Watson: Proc. Amer. Acad. Arts 14:302. (1879) |
Web links |
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