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Luzula spicata

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 spicata (L.) DC.
NATIVE
Habit: Plant densely cespitose, 5--30 cm. Leaf: channeled; basal leaves numerous, generally to 1.5--3 mm wide; cauline acute. Inflorescence: nodding, generally +- interrupted at base, clusters dense; middle bract lance-ovate, acuminate, membranous; lower bract <= inflorescence, +- green- to brown-membranous. Flower: perianth parts generally 2.2--2.8(3.3) mm, lance-oblong, acuminate, brown; anthers (0.4)0.5--0.6(0.7) mm, +- = filaments. Fruit: valves generally 1.6--2.3 mm, < perianth. Seed: 0.9--1.1 mm, +- 0.6(0.7) mm wide; appendage 0.10--0.15 mm. Chromosomes: 2n=24.
Ecology: Alpine slopes, on wind-eroded acidic soils; Elevation: 2900--3700 m. Bioregional Distribution: SNH, Wrn, SNE (Sweetwater Mtns); Distribution Outside California: to Alaska, Montana, Colorado; New York to Maine; circumpolar. Flowering Time: Jul--Aug Note: Variable, further study needed in CA-FP, GB.
Synonyms: Luzula spicata subsp. saximontana Á. Löve & D. Löve; Luzula spicata var. nova Smiley
eFlora Treatment Author: Jan Kirschner
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Citation for this treatment: Jan Kirschner 2016. Luzula spicata, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=32168, accessed on February 08, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 08, 2016.


Luzula spicata
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© 2004 Steve Matson
Luzula spicata
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© 2009 Steve Matson
Luzula spicata
click for enlargement
© 2004 Steve Matson
Luzula spicata
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© 2008 Steve Matson
Luzula spicata
click for enlargement
© 2008 Steve Matson
Luzula spicata
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© 2015 Steve Matson

More photos of Luzula spicata in CalPhotos


Geographic subdivisions for Luzula spicata:
SNH, Wrn, SNE (Sweetwater Mtns);
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.