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

Key to Hesperevax

View taxon page for Hesperevax

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

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

1. Distal heads 3–5 per group, ± terminal, ± , length 1.8–2.5 × width; groups loose, subtended by generally 1–4 leavespaleae of disk flowers 0.3–0.4 × , tips , ±  ..... H. sparsiflora

2. Largest leaves 6–12(14) mm, 3–5(6) mm wide;  ± round, woolly ..... var. brevifolia

2' Largest leaves (10)13–32 mm, 4–8(10) mm wide; blade oblanceolate to obovate, silky-cobwebby ..... var. sparsiflora

1' Distal heads 1 or (2)10–40+ per group, terminal, bell-shaped or ± obconic, length 1–1.5 × width; groups dense, subtended by 6–20 leaves; paleae of disk flowers 0.6–0.9 × head, tips 

3. Longest leaves (25)33–90 mm, 7–20 mm wide;  2–3 × blade, base strongly thickened; heads 10–40+ per group, largest group 10–25 mm wide, subtended by (not mixed with) leaves ..... H. caulescens

3' Longest leaves 4–22(32) mm, < 5 mm wide; petiole 0–1.5 × blade, base scarcely thickened; head generally 1, distal heads rarely 2–8 per group, largest group 3–7 mm wide, mixed with leaves ..... H. acaulis

4. Stem ± erect; largest leaves (9)12–22(32) mm, 2–4(5) mm wide; longest paleae of disk flowers 2.5–3.2 mm ..... var. robustior

4' Stem ±  or 0; largest leaves generally 4–12 mm, 0.5–2 mm wide; longest paleae of disk flowers 1.6–2.4 mm

5. Largest leaves generally 7–12 mm, 0.5–2 mm wide; petiole 0–0.8 × blade; blade oblanceolate,  ..... var. acaulis

5' Largest leaves generally 4–7 mm, 1–2 mm wide; petiole generally 0.5–1.5 × blade; blade obovate to round,  ..... var. ambusticola

 

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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, https://ucjeps.berkeley.edu/eflora/ [accessed on ]

Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .

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