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Eurasian woodrush, pale European wood rush

hairy wood rush

Rhizomes

thickened.

similar to stolons.

Culms

cespitose, 9–35 cm.

loosely cespitose, 10–40 cm × width3–5 mm.

Stolons

to 6 cm, scale leaves present.

Leaves

basal leaves 6–11.5 cm × 1.5–4 mm, apex not callous, sparingly ciliate.

sheaths reddish, throat pilose;

blade sparsely pubescent;

basal leaves 32 cm × 12 mm;

cauline leaves 2–4, 2–4 cm × 2–5 mm.

Inflorescences

umbellate-paniculate;

glomerules 4–30 (each with 9–24 flowers), central glomerules sessile or nearly sessile, cylindric, 6–10 × 4 mm;

branches straight, erect, to 3 cm;

proximal inflorescence bract conspicuous, leaflike, equal to much longer than inflorescence;

bracts clear, sometimes variegated with purple;

bracteole margins dentate to lacerate.

cymose, not rarely branching or often branching to 6 cm;

proximal inflorescence bract 1/2–2/3 inflorescence length;

bracts straw-colored, apex truncate, lacerate, glabrous or pubescent;

bracteoles lance-ovate, 1/3–1/2 tepal length;

pedicels single or paired, erect to spreading, 1–4 cm.

Flowers

tepals clear to straw-colored throughout or centers brown with clear margins and apex, 1.5–2.6 mm;

outer whorl exceeding inner whorl, (outer whorl apex awned);

anthers equaling to 1.5 times filament length.

tepals pale to dark brown, 3–4.5 mm, margins entire, clear;

anthers 2 times filament length;

stigmas ± equaling style length.

Capsules

light or dark reddish, shining, spheric, usually equaling inner tepal whorl.

green to straw-colored, exceeding tepals;

beak a mucro;

valves widely spreading upon splitting.

Seeds

translucent brown, ellipsoid, 0.7–1 mm;

caruncle 0.2–0.3 mm.

reddish to brown, 1–1.5 mm;

caruncle curved, ± equaling length of seed body.

2n

= 12.

= 48.

Luzula pallidula

Luzula acuminata

Phenology Flowering and fruiting early–late summer.
Habitat Moist to wet woods, grassy places, and clearings on rocky places and barrens
Elevation 0–1000 m (0–3300 ft)
Distribution
from FNA
NY; VT; NB; NF; QC; Eurasia [Introduced in North America]
[BONAP county map]
from USDA
[WildflowerSearch map]
[BONAP county map]
Discussion

Basal leaves of Luzula pallidula are sparingly ciliate.

For discussion of the change of the widely known name for this species, see J. Kirschner (1990).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Inflorescences simple, with occasional branch from near base of flower
var. acuminata
1. Inflorescences usually branching, with pedicels commonly paired
var. carolinae
Source FNA vol. 22. FNA vol. 22, p. 256.
Parent taxa Juncaceae > Luzula > subg. Luzula Juncaceae > Luzula > subg. Pterodes
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. parviflora, L. piperi, L. rufescens, L. spicata, L. subcapitata, L. subcongesta, L. wahlenbergii
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. piperi, L. rufescens, L. spicata, L. subcapitata, L. subcongesta, L. wahlenbergii
Subordinate taxa
L. acuminata var. acuminata, L. acuminata var. carolinae
Synonyms Juncus pallescens, L. pallescens
Name authority Kirschner: Taxon 39: 110. (1990) Rafinesque: Autikon Botanikon 3: 193. (1840)
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