Jepson eFlora
Key to families | Table of families and genera

Key to Hesperevax

View taxon page for Hesperevax

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

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

2. Largest leaves 6–12(14) mm, 3–5(6) mm wide; blade ± 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 exserted, spreading

3. Longest leaves (25)33–90 mm, 7–20 mm wide; petiole 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 ± prostrate 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, acute ..... var. acaulis

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


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [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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