Jepson eFlora
Key to families | Table of families and genera

Key to Leptosyne

View taxon page for Leptosyne

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

1. Perennial herb or shrub; stem stout, 3–20 dm; ray elliptic to oblong, much longer than wide; heads, including rays, generally 4–10 cm diam

2. Trunk erect, fleshy, to ± 2 m; stem solid; heads (1)8–20+ per cluster; peduncle 6–20 cm ..... L. gigantea

2' Trunk 0; stem hollow; heads generally 2–4 per cluster; peduncle 15–50 cm ..... L. maritima

1' Annual; stem slender, generally 0.5–4 dm; ray oblong to ovate or obovate; heads 1–7 cm diam

3. Disk fruit ciliate, pappus scales 2, 1–5 mm; ray fruit glabrous, pappus scales 0

4. Outer phyllaries triangular-ovate; disk pappus scales 2.5–5 mm ..... L. calliopsidea

4' Outer phyllaries linear to linear-oblong; disk pappus scales <= 3 mm

5. Disk pappus scales 1.7–2.8 mm; palea and disk fruit fused at base, falling together; rays spreading horizontally in fully opened heads ..... L. bigelovii

5' Disk pappus scales 0.9–1.3 mm; palea free from disk fruit, falling separately; rays reflexed in fully opened heads ..... L. hamiltonii

3' Disk and ray fruits similar, never ciliate; pappus 0 or of 1–2 scales, < 1 mm

6. Leaves ± flat, 1–2-pinnately divided into narrowly oblanceolate lobes 1–3 mm wide; outer phyllary bases with gland-tipped teeth ..... L. stillmanii

6' Leaves or leaf lobes linear or thread-like, 0.3–1.3 mm wide; phyllary teeth 0

7. Fruit rusty-tan to light brown or ± red, generally blotched with red or black spots near margin at least when young, puberulent, wings irregularly thickened, corky ..... L. californica

7' Fruit dark brown, shiny, ± glabrous, wings thin ..... L. douglasii


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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