Luzula wahlenbergii |
Luzula subg. Anthelaea |
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Wahlenberg's wood rush |
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Rhizomes | short. |
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Culms | cespitose, 15–30(–35) cm. |
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Leaves | sheath throat acutely angled, pilose; basal leaf blade 5–10 cm × 3–8 mm, apex short acuminate, mostly glabrous; cauline leaves (1–)2–4, 3–5 cm × 2–4 mm. |
apex generally not callous. |
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Inflorescences | anthelate, few flowered; main branches generally 2–4, spreading less than 90°, lax, usually arching; proximal inflorescence bract 1 cm or less; bracts and bracteoles brown; margins with long curly cilia. |
paniculate or dichasial. |
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Flowers | solitary on short pedicels; tepals dark purplish brown (margins finely lacerate toward apex), 2–2.5 mm, margins finely lacerate toward apex, apex acute, not reflexed; anthers ± equaling filament length; stigmas 2 times style length. |
in pairs, rarely in clusters of 3–4 or solitary. |
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Capsules | dark brown, less than 2.5 mm, slightly longer than tepals; beak absent. |
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Seeds | dark reddish brown, cylindric, 1.2–1.6 mm; caruncle essentially absent. |
micropylar end with tuft of hairs; caruncle barely visible or absent. |
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2n | = 24. |
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Luzula wahlenbergii |
Luzula subg. Anthelaea |
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Phenology | Flowering and fruiting late summer. | |||||||||||||||||||||
Habitat | Wet mossy arctic and alpine tundra, lake shores, alluvial rivers, shores of alpine creeks, gneissic seashores | |||||||||||||||||||||
Elevation | 40–600 m (100–2000 ft) | |||||||||||||||||||||
Distribution |
AK; BC; MB; NT; NU; QC; YT; Greenland; Eurasia |
Northern Hemisphere |
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Discussion | Species 20+ ca. 50 (6 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 22. | FNA vol. 22. | ||||||||||||||||||||
Parent taxa | Juncaceae > Luzula > subg. Anthelaea | Juncaceae > Luzula | ||||||||||||||||||||
Sibling taxa | ||||||||||||||||||||||
Subordinate taxa | ||||||||||||||||||||||
Synonyms | L. section Anthelaea | |||||||||||||||||||||
Name authority | Ruprecht: Fl. Samojed. Cisural. 58. (1845) | (Grisebach) Buchenau: Botanische Jahrbucher fur Systematik, Pflanzengeschichte und Pflanzengeographie 12: 76, 86. (1890) | ||||||||||||||||||||
Web links |