Jepson eFlora: Taxon page
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Luzula piperi

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 piperi (Coville) M.E. Jones
NATIVE
Habit: Plant 20--30(35) cm, cespitose, +- blue-green, +- glabrous. Leaf: tip acute; basal leaves 5--10 cm, 3--4 mm wide; cauline 2--3, to 3--7 cm, 3--5 mm wide. Inflorescence: conspicuously nodding, generally +- 5 cm, 3 cm wide, generally 30--60-flowered, flowers not clustered; lower bract to +- 1 cm, +- brown, ciliate. Flower: perianth parts (1.8)2--2.3(2.5) mm, equal, +- lanceolate, acute, generally dark brown; anthers (0.3)0.4--0.6(0.8) mm; filaments +- 0.5 mm. Fruit: capsule > perianth, oblong-ellipsoid, +- acuminate to acute, +- dark-brown; valves 1.8--2.2(2.4) mm, 1--1.2 mm wide. Seed: seeds pale brown, 1--1.2 mm, 0.5--0.6 mm wide; appendage indistinct. Chromosomes: 2n=24.
Ecology: Areas of late-melting snow; Elevation: 2500--2600 m. Bioregional Distribution: KR; Distribution Outside California: to Alaska, western Montana; eastern Asia. Flowering Time: Jul Note: Further study needed.
eFlora Treatment Author: Jan Kirschner
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Previous taxon: Luzula parviflora subsp. parviflora
Next taxon: Luzula spicata

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Citation for this treatment: Jan Kirschner 2016. Luzula piperi, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=32166, accessed on May 04, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 04, 2016.


Geographic subdivisions for Luzula piperi:
KR;
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.