Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera
       
   

Key to Luzula

View taxon page for Luzula

(For a list of species in Luzula, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Flowers 1(2–3) on inflorescence branches

2. Inflorescence branches generally at ± right angles; perianth part tip ±  ..... L. divaricata

2' Inflorescence branches nodding to  but not at ± right angles; perianth parts  to , not reflexed

3. Plant < 30 cm; cauline leaves 2–3,  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. Inflorescence few-flowered, branches long; perianth parts generally pale- to straw-brown ..... subsp. fastigiata

4' Inflorescence many-flowered, main branches long, distal 2° branches short; perianth parts medium brown ..... subsp. parviflora

1' Flowers in denseovoid to  clusters, or  inflorescence congested

5. Cauline  tips microscopically generally not thickened or rounded

6. Inflorescence dense, generally interrupted at base, nodding; basal leaves 1.5–3 mm wide, channeled ..... L. spicata

6' Inflorescence of 4–20 clusters on  of variable length, not nodding, some peduncles occasionally arching or ± flexuous; basal leaves 3–6 mm wide, flat ..... L. subcongesta

5' Cauline leaf tips microscopically generally thickened and rounded

7. Inflorescence dense, ± black-brown; seeds 0.5–0.6 mm wide ..... L. orestera

7' Inflorescence of peduncled or ±  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. Inflorescence 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' Inflorescence 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

 

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