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Luzula orestera

Higher Taxonomy
Family: JuncaceaeView DescriptionDichotomous Key

Common Name: RUSH FAMILY
Habit: Annual, perennial herb generally from rhizomes. Stem: round or flat. Leaf: generally basal; sheath margins fused, or overlapping and generally with 2 ear-like extensions at blade junction; blade round, flat, or vestigial, glabrous or margin hairy. Inflorescence: head-like clusters or flowers 1, variously arranged; bracts subtending inflorescence 2, generally leaf-like; bracts subtending inflorescence branches 1--2, reduced; bractlets subtending flowers generally 1--2, generally translucent. Flower: generally bisexual, radial; sepals and petals similar, persistent, scale-like, green to brown or +- purple-black; stamens generally 3 or 6, anthers linear, persistent; pistil 1, ovary superior, chambers generally 1 or 3, placentas 1 and basal or 3 and axile or parietal, stigmas generally > style. Fruit: capsule, loculicidal. Seed: 3--many, generally with white appendages on 1 or both ends.
Genera In Family: 7 genera, 440 species: temperate, arctic, and tropical mountains. Note: Flowers late spring to early fall.
eFlora Treatment Author: Peter F. Zika, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: LuzulaView DescriptionDichotomous Key

Common Name: HAIRY WOOD RUSH
Habit: Perennial herb, cespitose or rhizomatous, rhizome ascending or vertical. Stem: cylindric. Leaf: generally basal, cauline few; blades linear, flat or channeled, margins and sheath opening, sparsely to densely long-soft-hairy. Inflorescence: panicles of 1--few flowers per branch, or head-like and cylindric to ovoid in dense to loose clusters; lower bract leaf-like or herbaceous at base, membranous distally, bractlets 1--3, margins generally ciliate. Flower: perianth parts 6, pale brown to +- black-brown; stamens 6; pistil 1, chamber 1, placenta basal. Fruit: capsule, opening with 3 valves. Seed: 3, elliptic to ovoid, ridged on 1 side, occasionally attached to placenta by tuft of hairs, generally with +- white appendage at tip.
Species In Genus: +- 115 species: worldwide. Etymology: (Latin: light; Italian: glow worm) Note: Measure unridged side of seeds; seed length measurement not including appendage.
eFlora Treatment Author: Jan Kirschner

Luzula orestera Sharsm.
NATIVE
Habit: Plant densely cespitose, 7--14 cm. Stem: stout, erect. Leaf: flat, tip obtuse, thickened; basal leaves numerous, 3--5(8) cm, 3--4 mm wide; cauline 1--2, 3--4 cm, 3--4 mm wide. Inflorescence: +- 1--4(6) sessile clusters, generally (0.5)0.8--1.2 cm, heads densely congested, many-flowered; lower bracts 1--3, > inflorescence, leaf-like, +- stiff, +- red, erect-spreading. Flower: perianth parts +- 2.4--2.9 mm, +- equal, lanceolate, acuminate, dark brown, margins pale, distinct; anthers 0.4--0.6 mm, filaments 0.5--0.6 mm. Fruit: < perianth, +- obtuse, dark brown; valves 1.8--2 mm, +- 1.1 mm wide. Seed: 0.8--0.9(1) mm, 0.5--0.6 mm wide; appendage 0.15--0.2 mm. Chromosomes: 2n=20,22.
Ecology: Alpine and subalpine meadows, fell-fields; Elevation: 2700--3600 m. Bioregional Distribution: SNH. Flowering Time: Jul--Aug Note: Possibly in Nevada, Oregon.
eFlora Treatment Author: Jan Kirschner
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Citation for this treatment: Jan Kirschner 2016. Luzula orestera, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=32150, accessed on February 11, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 11, 2016.


Luzula orestera
click for enlargement
© 2004 Steve Matson
Luzula orestera
click for enlargement
© 2004 Steve Matson
Luzula orestera
click for enlargement
© 2004 Steve Matson
Luzula orestera
click for enlargement
© 2004 Steve Matson
Luzula orestera
click for enlargement
© 2004 Steve Matson
Luzula orestera
click for enlargement
© 2004 Steve Matson

More photos of Luzula orestera in CalPhotos


Geographic subdivisions for Luzula orestera:
SNH.
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.