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Piper's wood-rush, smooth woodrush

Rhizomes

horizontal, short.

Culms

densely cespitose, 10–30(–35) cm.

Leaves

basal blade green, 5–10 cm × 2–4 mm, firm, essentially glabrous;

cauline leaves 2–3, 3–7 cm × 3–5 mm.

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.

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.

Capsules

dark brown, ellipsoid, shorter than 2.5 mm, longer than tepals;

beak absent.

Seeds

light yellow-brown, lanceolate, narrowed at ends, 1.2 mm.

2n

= 24.

Luzula piperi

Phenology Flowering and fruiting summer.
Habitat Snowbeds and mesic heaths in subalpine and oceanic zones
Elevation 400–2400 m (1300–7900 ft)
Distribution
from FNA
AK; ID; MT; OR; WA; AB; BC; YT; e Asia
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 22.
Parent taxa Juncaceae > Luzula > subg. Anthelaea
Sibling taxa
L. acuminata, L. arctica, L. arcuata, L. bulbosa, L. campestris, L. comosa, L. confusa, L. divaricata, L. echinata, L. groenlandica, L. hitchcockii, L. kjellmaniana, L. luzuloides, L. multiflora, L. orestera, L. pallidula, L. parviflora, L. rufescens, L. spicata, L. subcapitata, L. subcongesta, L. wahlenbergii
Synonyms Juncoides piperi, L. wahlenbergii subsp. piperi
Name authority (Coville) M. E. Jones: Bull. Biol. Ser. Bull. State Univ. Montana 15: 22. (1910)
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