Jepson eFlora
Key to families | Table of families and genera

Key to Solidago

View taxon page for Solidago

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

1. Mid-cauline leaves largest

2. Peduncle bracts, and/or phyllaries sparsely to moderately minutely stalked-glandular; stem generally glabrous proximally; inflorescence pyramid-shaped, proximal branches not crowded; n High Sierra Nevada, Modoc Plateau ..... S. lepida var. salebrosa

2' Inflorescence not glandular; stem ± hairy to base, not waxy distally; inflorescence pyramid- or club-shaped; widespread

3. Inflorescence ± widely pyramid-shaped; involucre 3–5 mm; leaves weakly serrate; disturbed sites ..... S. altissima subsp. altissima

3' Inflorescence ± club-shaped; involucre 2.5–3.5 mm; leaves generally serrate; ± undisturbed sites ..... S. elongata

1' Proximal cauline or basal leaves largest

4. Inflorescence generally flat- to round-topped; phyllaries long-acuminate, not strongly graduated; leaf generally long-ciliate ..... S. multiradiata

4' Inflorescence generally panicle- or raceme-like, generally ± pyramid- or club-shaped, but not flat- or round-topped; phyllaries obtuse, rounded, acute or acuminate, ± strongly graduated; leaf not long-ciliate

5. Leaves and heads strongly resinous; North Coast, Outer North Coast Ranges, Inner North Coast Ranges, Central Coast, San Francisco Bay Area ..... S. spathulata

5' Leaves and heads not strongly resinous; widespread

6. Herbage sparsely to densely short-hairy; distal nodes without axillary leaf-clusters ..... S. velutina

7. Herbage ± densely short-hairy; outer phyllaries strigose; disk corolla throat obscure ..... subsp. californica

7' Herbage ± sparsely short-hairy; outer phyllaries ± glabrous; disk corolla throat ± obvious ..... subsp. sparsiflora

6' Herbage ± glabrous; distal nodes often with axillary leaf-clusters

8. Phyllaries lanceolate to ± ovate, not inrolled, obtuse to acuminate; rays 6–21; Klamath Ranges, High Cascade Range, n High Sierra Nevada (e slope), Great Basin Floristic Province ..... S. spectabilis

8' Phyllaries very narrowly triangular, inrolled near tip, sharply acute; rays 3–13; Tehachapi Mountain Area, Central Western California, Southwestern California, White and Inyo Mountains, n Desert Mountains

9. Leaves generally < 10 × longer than wide; inflorescence generally club-shaped, panicle-like ..... S. confinis

9' Leaf generally 10+ × longer than wide; inflorescence generally narrow, sometimes spike-like — s Inner South Coast Ranges ..... S. guiradonis

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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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