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Vascular Plants of California
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Key to Leptosiphon

View taxon page for Leptosiphon

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

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

1. Perennial herb

2. Leaf  0 ..... L. floribundus subsp. hallii

2' Leaf  

3. Leaf  generally 3;  generally 1–6 mm ..... L. floribundus

4. Leafcalyx hairy ..... subsp. floribundus

4' Leafcalyx glabrous ..... subsp. glaber

3' Leaf  generally 5;  0 or << 1 mm

5. Corolla tubecalyx  lance-linear; seeds > 2 mm ..... L. pachyphyllus

5' Corolla tube <= calyx  generally seeds < 2 mm ..... L. nuttallii

6. Leafcalyx sparsely hairy ..... subsp. nuttallii

6' Leafcalyx densely hairy

7. Leaf  3–7 mm; NCoRH ..... subsp. howellii

7' Leaf  5–10 mm; SNE ..... subsp. pubescens

1' Annual

8. Corolla not both  and in dense bracted heads

9. Flowers 

10. Corolla 15–30 mm; c CW ..... L. grandiflorus

10' Corolla < 15 mm; s SW, DSon ..... L. lemmonii

9' Flowers pedicelled

11. Hairy ring inside corolla 0, filaments glabrous; corolla generally < calyx

12. Stem branches generally above base or 0; corolla tube << stamens seeds 1 per chamber ..... L. harknessii

12' Stem branches at base; corolla tube >= stamens seeds > 1 per chamber ..... L. pygmaeus

13. Corolla white; SNF, GV, CW, SW (except ChI) ..... subsp. continentalis

13' Corolla blue; s ChI (San Clemente) ..... subsp. pygmaeus

11' Hairy ring inside corolla present or, if 0, then filaments hairy; corolla > calyx

14. Hairy ring inside corolla 0; filaments hairy at base

15. Stem branched at base; calyx membrane as wide as corolla veins obscure ..... L. filipes

15' Stem branched above base; calyx membrane wider than corolla veins conspicuous ..... L. liniflorus

14' Hairy ring inside corolla present; filaments glabrous (rarely hairy at base in Leptosiphon septentrionalis)

16. Corolla 2–4 mm; stamens attached at or below hairy ring ..... L. septentrionalis

16' Corolla 4–15 mm; stamens attached above hairy ring

17. Corolla tube ..... L. aureus

18. Corolla  bright yellow ..... subsp. aureus

18' Corolla  white ..... subsp. decorus

17' Corolla tube

19. Stigmas 1–2 mm; corolla throat generally maroon; stamens attached at or above mid throat; SnJV, SnFrB, SCoRI ..... L. ambiguus

19' Stigmas <= 1 mm; corolla throat yellow; stamens attached at or below mid throat; NW, CaR, n&c SNF, n SNH, SnFrB, MP

20. Corolla tube < 5 mm, white, pink, blue, or lilac, <= calyx ..... L. bolanderi

20' Corolla tube 10–15 mm, maroon, > 1.5 × calyx ..... L. rattanii

8' Corollas both  (tube >> calyx) and in dense, bracted heads

21. Calyx membrane at least as wide as 

22. Bracts white-ciliate

23. Corolla tube 10–25 mm,  2–4 mm ..... L. ciliatus

23' Corolla tube 25–30 mm,  5–8 mm ..... L. montanus

22' Bracts not white-ciliate

24. Leaf  oblanceolate; corolla lobes generally  or ± notched; s SNH ..... L. oblanceolatus

24' Leaf   to lance-linear; corolla lobes rounded; s SNH and elsewhere in s CA

25. Bract  not connected by translucent membrane; corolla tube glabrous outside; SnGb, SnBr, DMoj ..... L. breviculus

25' Bract  connected at base by translucent membrane; corolla tube hairy outside; s SNH, Teh ..... L. nudatus

21' Calyx membrane much narrower than 

26. Corolla tube 7–8 mm, < 2 × calyx ..... L. serrulatus

26' Corolla tube generally > 10 mm, 2–6 × calyx

27. Calyx hairs sparse or 0 except on margins, nonglandular

28. Corolla  generally < 4 mm; stigmas <= 1(3) mm ..... L. bicolor

28' Corolla  > 4 mm; stigmas < or > 1 mm

29. Corolla  4–6 mm; stigmas generally < 2 mm ..... L. jepsonii

29' Corolla  6–14 mm; stigmas generally > 2 mm

30. Corolla  generally 6–9 mm, rounded;  lobes spoon-shaped, tips rounded ..... L. rosaceus

30' Corolla  generally > 8 mm, often abruptly soft-pointed;  lobes narrowly oblanceolate to , tips pointed ..... L. androsaceus

27' Calyx hairs denseglandular or not

31. Leafcalyx  needle-like; corolla lobes 3(5) mm, bright yellow ..... L. acicularis

31' Leafcalyx  not needle-like; corolla lobes generally > 5 mm, yellow or otherwise colored, but not both < 5 mm and yellow

32. Corolla  2–4 mm, tube 5–16 mm ..... L. minimus

32' Corolla  >= 4 mm, tube generally > 14 mm

33. Corolla  > 5 mm wide, rounded, bright yellow; calyx lobes generally  ..... L. croceus

33' Corolla  < 5 mm wide, not both rounded and yellow; calyx lobes generally narrowly 

34. Tip of middle   rounded, generally > 2 mm wide at widest point; corolla  abruptly soft pointed or generally tube generally > 1 mm wide ..... L. latisectus

34' Tip of middle   , generally < 2 mm wide at widest point; corolla  rounded, tube generally < 1 mm wide ..... L. parviflorus

 

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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, http://ucjeps.berkeley.edu/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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