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| Jepson eFlora
Key to families | Table of families and genera This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press. Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link. |
Perennial, 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.
± 115 species: worldwide. (Latin: light; Italian: glow worm) Measure unridged side of seeds; seed length measurement not including appendage.
1. Fls 1(2–3) on inflorescence branches
2. Infl branches generally at ± right angles; perianth part tip ± reflexed ..... L. divaricata
2' Infl branches nodding to spreading but not at ± right angles; perianth parts appressed to erect, not reflexed
3. Plant < 30 cm; cauline leaves 2–3, basal leaves 3–4 mm wide; perianth parts generally dark brown ..... L. piperi
3' Plant 30–70 cm; cauline leaves (3)4–5, basal leaves 5–8 mm wide; perianth parts generally straw-brown ..... L. parviflora
4. Infl few-flowered, branches long; perianth parts generally pale- to straw-brown ..... subsp. fastigiata
4' Infl many-flowered, main branches long, distal 2° branches short; perianth parts medium brown ..... subsp. parviflora
1' Fls in dense, ovoid to cylindric clusters, or entire inflorescence congested
5. Cauline leaves acute, generally not thickened
6. Infl dense, generally interrupted at base, nodding; basal leaves 1.5–3 mm wide, channeled ..... L. spicata
6' Infl of 4–20 clusters on peduncles of variable length, not nodding, some peduncles occasionally arching or ± flexuous; basal leaves 3–6 mm wide, flat ..... L. subcongesta
5' Cauline leaves obtuse, generally thickened
7. Infl dense, ± black-brown; seeds 0.5–0.6 mm wide ..... L. orestera
7' Infl of peduncled or ± sessile clusters, if dense then pale brown to straw-brown, otherwise not darker than brown; seeds > 0.7 mm wide
8. Seeds ovoid-subspheric, 0.9–1.1 mm wide; style 0.6–1.2 mm ..... L. subsessilis
8' Seeds ovoid or narrowly ovoid; 0.7–0.9 mm wide, style 0.4–0.7 mm ..... L. comosa
9. Infl generally dense; style 0.4–0.5 mm; anthers 0.6–1 mm; seeds 1–1.2 mm, 0.8–0.9 mm wide ..... var. comosa
9' Infl generally of peduncled clusters; style 0.5–0.7 mm; anthers 0.8–1.2(1.5) mm; seeds 1.1–1.3 mm, 0.7–0.8 mm wide ..... var. laxa
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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