Luzula arctica |
Luzula luzuloides |
|
---|---|---|
arctic wood rush |
forest wood rush, oak-forest wood rush |
|
Culms | densely cespitose, 5-20 cm. |
|
Leaves | sheaths brown to straw-colored; basal leaves to 10 cm × 4 mm; cauline leaves usually 2, reduced. |
|
Inflorescences | glomerules 1-3, sessile; proximal inflorescence bract inconspicuous, brown, much shorter to ± equaling inflorescence, apex often clear, dentate; bracts deep brown, margins dentate; bracteoles deep brown, margins dentate. |
|
Flowers | tepals deep brown with narrow clear margins and apex, 1.7-2.1 mm; anthers ± equaling filament length. |
|
Capsules | dark reddish to blackish, shining, spheric, 1.8-2.1 mm, usually exceeding tepals. |
|
Seeds | translucent, clear brown, broadly elliptic, with few entangled hairs, 1-1.2 mm. |
|
2n | = 24. |
|
Luzula arctica |
Luzula luzuloides |
|
Phenology | Flowering and fruiting summer. | |
Habitat | Wet, stony places on slopes and in dwarf shrub heaths in alpine and arctic tundra; circumpolar. | |
Elevation | 0-1200 m (0-3900 ft) | |
Distribution |
AK; BC; LB; MB; NT; NU; QC; YT; Greenland; Eurasia |
CT; MA; ME; MN; NY; PA; VT; WI; NS; ON; QC; Europe [Introduced, North America] |
Discussion | Subspecies 2 (1 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 22, p. 263. | FNA vol. 22. |
Parent taxa | Juncaceae > Luzula > subg. Luzula | Juncaceae > Luzula > subg. Anthelaea |
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | L. nivalis | Juncus luzuloides |
Name authority | Blytt: in M. N. Blytt and A. G. Blytt, Norges Flora 1: 299. (1861) | (Lamarck) Dandy & Wilmott: J. Bot. 76: 352. (1938) |
Web links |