Jepson eFlora: Key page
Vascular Plants of California
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Key to Hesperolinon

View taxon page for Hesperolinon

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

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

1. Petals yellow, often veined or tinged orange-red; anthers yellow

2. Leaf base clasping, margin  with 1–3 rows of prominent gland-tipped teeth ..... H. adenophyllum

2' Leaf base not clasping, margin neither serrate nor glandular

3. Styles generally 2 (occasionally some plants with both 2- and 3-carpellate flowers) ..... H. bicarpellatum (2)

3' Styles generally 3 (occasionally 2-carpellate flowers in 3-carpellate plants)

4. Styles generally 0.5–1 mm, corolla not  widely ..... H. clevelandii

4' Styles generally >= 2 mm, ; corolla spreading widely

5. Flowers generally clustered at inflorescence tips; stipular glands generally present throughout pl; petals 4–10 mm; filaments 4–8 mm ..... H. breweri

5' Flowers scattered, widely separated throughout inflorescence; stipular glands 0 or present only on proximal stem; petals <= 5.5 mm; filaments <= 4 mm

6. Stemleaves generally glabrous, or stem  only above ; petals 2–4 mm; styles generally 2–3.5 mm ..... H. bicarpellatum (2)

6' Stem, leaves generally puberulent; petals 3.5–5.5 mm; styles generally 3–10 mm ..... H. tehamense

1' Petals white to pink, often veined or tinged darker pink to purple; anthers white to pink or purple

7. Leaves  (generally in 4s) on main stem, generally 3–6 mm wide, , margin glandular ..... H. drymarioides

7' Leaves generally  on main stem, <= 3 mm wide, thread-like to margins not glandular

8' Styles generally 3 (occasionally some 2-carpellate flowers on 3-carpellate plants)

9. Inflorescence generally dense generally <= 2 mm at flower (scattered flowers at lower nodes occasionally with pedicels to 5(10) mm), elongating in fruit; stipular glands generally present at leaves, bracts

10. Sepals glabrous; petals white to white flushed or veined with pink ..... H. californicum

10' Sepals hairy; petals light to dark pink ..... H. congestum

9' Inflorescence generally open; pedicels generally 1–25 mm at flower, to 45 mm in fruit; stipular glands 0 or minute, or present only at proximal leaves

11. Styles included; petals only slightly spreading, 0.5–3.5 mm, often <= sepals ..... H. micranthum

11' Styles exserted; petals widely spreading to , 3–7 mm, > sepals

12. Pedicels straight in , not pendent ..... H. disjunctum

12' Pedicels pendent in bud ..... H. spergulinum



Citation for the whole project: Jepson Flora Project (eds.) . Jepson 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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