The Jepson Manual: Higher Plants of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

Names are linked to treatments from the Manual


N.B.: couplets are linked, e.g., 1. is linked to 1'.

  1. Leaves green at least above, often glandular, sometimes sparsely tomentose
    2. Leaves green, glandular on both surfaces, sometimes sparsely tomentose
      3. Larger cauline leaves 10–15 mm wide, upper green at flowering; heads spheric; phyllaries generally white
G. californicum
      3' Larger cauline leaves 5–7 mm wide, all generally withered at flowering; heads narrower than high; phyllaries dull white to greenish or pinkish
G. ramosissimum
    2' Leaves green, glabrous or glandular above, densely tomentose below
      4. Heads densely clustered in leafy-bracted axils; phyllaries brown
        5. Basal leaves many more than cauline; perennial herb; leafy bracts short
G. collinum
        5' Basal leaves 0 or fewer than cauline; annual; leafy bracts long
G. japonicum
      4' Heads in open to dense, panicle-like clusters; leafy bracts 0; phyllaries white or pale yellow
        6. Plant from rhizome; leaf surface not glandular above; herbage not scented; pistillate corollas 4–5 mm
Anaphalis margaritacea
        6' Plant from taproot; leaf surface densely glandular-puberulent above; herbage generally ± strongly scented; pistillate corollas 3–4 mm
          7. Cauline leaves 4–16 mm wide, clasping; heads 5.5–6 mm
G. bicolor
          7' Cauline leaves 2–4 mm wide, not clasping; heads 6.5–7 mm
G. leucocephalum
  1' Leaves gray, densely tomentose on both surfaces
    8. Perennial (biennial); basal leaf-tufts present at flowering
G. canescens
      9. Heads 4–5 mm; pistillate corollas 2.5–3 mm; leaves of sterile shoots narrowly spoon-shaped
subsp. thermale
      9' Heads 5–6 mm; pistillate corollas 3–4 mm; leaves of sterile shoots linear to oblanceolate
        10. Leaves narrowly lanceolate, cauline ascending to erect
subsp. beneolens
        10' Leaves ± oblong to spoon-shaped, cauline spreading
          11. Middle phyllaries ± 3 × > wide, tips ± acute
subsp. canescens
          11' Middle phyllaries ± 2 × > wide, tips obtuse or rounded
subsp. microcephalum
    8' Annual or biennial; basal leaf-tufts 0 at flowering
      12. Hairs closely appressed, rarely loose; phyllaries brown to purple
G. purpureum
      12' Hairs not appressed, ± woolly, often loose and tufted; phyllaries white (at least tips)
        13. Stem generally < 20 cm; phyllaries brown, tips short, whitish; flowers 40–60 per head
G. palustre
        13' Stem 30–60 cm in healthy plants; phyllary upper 1/2 white or pale yellow, transparent or opaque; flowers 50–120 per head
          14. Heads 3–4.2 mm; pistillate corollas 1.5–2 mm; pappus bristles falling in clusters
G. luteo-album
          14' Heads 3.8–5.2 mm; pistillate corollas 1.8–2.5 mm; pappus bristles falling singly
G. stramineum

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