The Jepson Manual: Higher Plants of California

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Names are linked to treatments from the Manual


Key to NAVARRETIA

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

  1. Calyx ribs strap-shaped, wider at base than membrane; lobes of bract tip 7–many; fruit dehiscing from base upward, not to tip (sect. Mitracarpium)
 
    2. Axis of upper leaves and often of bracts wider above middle
 
      3. Central stem < or = branches; axis white-hairy
N. jaredii
      3' Central stem generally > branches; axis puberulent
 
        4. Bracts generally hairy and puberulent, axis of inner bracts wider below middle, generally not above
2 N. pubescens
        4' Bracts puberulent, axis wider below and above middle
N. setiloba
    2' Axis of upper leaves and bracts linear
 
      5. Corolla throat lacking spots
 
        6. Corolla bright blue with purple throat
2 N. pubescens
        6' Corolla yellow or white (sometimes lobe tips blue)
 
          7. Inflorescence puberulent, slightly or not hairy; corolla lobes 4
N. cotulifolia
          7' Inflorescence densely white-hairy, corolla lobes generally 5
N. eriocephala
      5' Corolla throat with purple or brown spots
 
        8. Corolla lobes purple; fruit 8-valved
N. jepsonii
        8' Corolla lobes white or yellow; fruit 4-valved
 
          9. Corolla white; fruit 1–2-seeded
N. heterandra
          9' Corolla yellow; fruit 2–9-seeded
N. nigelliformis
            10. Corolla 12–16 mm; branches ascending; herbage dark green
subsp. nigelliformis
            10' Corolla 9–11 mm; branches decumbent; herbage gray-green
subsp. radians
  1' Calyx ribs tapered, narrower at base than membrane; lobes of bract tip generally 0–few; fruit dehiscing from tip downward (if dehiscing upward, then only when wet)
 
    11. Plant generally not glandular; seeds stuck together until wet; fruit translucent, sticking to seeds, opening at base when wet (sect. Navarretia)
 
      12. Axis of inner bracts concave-expanded at base; corolla lobes ovate
 
        13. Bract tips with 3 spreading spines; corolla lobes with 1 vein entering base; stigmas 2
N. intertexta
          14. Bracts and calyces densely white-hairy; plant erect, loosely branched, 8–28 cm
subsp. intertexta
          14' Bracts and calyces sparsely white-hairy; plant spreading, densely branched, < 10 cm
subsp. propinqua
        13' Bract tips without 3 spreading spines; corolla lobes with 3 veins entering base; stigmas 3
 
          15. Calyx and bracts glabrous; bract tips entire; calyx lobes entire
N. subuligera
          15' Calyx and bracts appressed-hairy; bract tips many-lobed; calyx lobes toothed
N. tagetina
      12' Axis of inner bracts widely membranous-winged at base, not concave-expanded; corolla lobes linear or narrowly ovate (N. leucocephala group)
 
        16. Mature inflorescence a head (flowers sessile); plants prostrate
 
          17. Corolla 12–21 mm, tube long-exserted; involucral leaves lobed near base
N. myersii
          17' Corolla 7–9 mm, tube slightly exserted; involucral leaves with many lobes above and below
N. prostrata
        16' Mature inflorescence a dense cyme (flowers subsessile or short-pedicelled); plants generally not prostrate
 
          18. Calyx tube hairy; seeds 5–25; s California; Baja California
N. fossalis
          18' Calyx tube glabrous or slightly hairy; seeds 2–7; n&c California
N. leucocephala
            19. Corolla tube exserted, throat 2–3 mm wide, lobes narrowly ovate
subsp. leucocephala
            19' Corolla tube included, throat 1–2 mm wide, lobes linear
 
              20. Inflorescence 2–20-flowered; outer bracts generally with 3–5 entire or forked lobes
subsp. pauciflora
              20' Inflorescence 10–60-flowered; outer bracts generally with 7 or more 3–4-branched lobes
 
                21. Corolla < or = calyx; some calyx lobes generally toothed; Cascade Range, Sierra Nevada, Great Basin Floristic Province
subsp. minima
                21' Corolla = or > calyx; calyx lobes generally entire; North Coast Ranges, w Sacramento Valley
 
                  22. Stem generally erect, branches ascending; corolla white
subsp. bakeri
                  22' Stem low, branches spreading; corolla blue — rare
subsp. plieantha
    11' Plant generally glandular; seeds not stuck together; fruit opaque, not sticking to seeds, dehiscing downward from tip to base
 
      23. Outer bracts with short or linear axis and linear lobes, terminal lobe ± as wide as laterals (sect. Masonia)
 
        24. Bracts pinnately lobed
 
          25. Corolla yellow; plant puberulent, not glandular-hairy
N. breweri
          25' Corolla lavender; plant puberulent and glandular-hairy
N. peninsularis
        24' Bracts palmately lobed
 
          26. Corolla 8–10 mm; stamens and style exserted
N. prolifera
            27. Corolla lobes yellow
subsp. lutea
            27' Corolla lobes blue to purple
subsp. prolifera
          26' Corolla 4–7 mm; stamens and style included
N. divaricata
            28. Corolla white with pink lobes; longest bract 5–10 mm
subsp. divaricata
            28' Corolla purple; longest bract 7–20 mm
subsp. vividior
      23' Outer bracts with broad axis and tapered lobes (if bracts palmate then middle lobe much wider than laterals) (sect. Aegochloa)
 
        29. Tip of outer bracts 3-lobed, often hooked
 
          30. Leaf lobes generally pointed tipward (basal lobes spreading); bract lobes pointed tipward, tips not hooked
N. atractyloides
          30' Leaf and bract lobes spreading; bract tips generally hooked
N. hamata
            31. Corolla pale colored; bracts hairy, not glandular, 3 lobes of hook equal
subsp. parviloba
            31' Corolla bright colored; bracts gland-dotted or glandular-hairy, 3 lobes of hook generally unequal
 
              32. Corolla tube included, throat wide
subsp. hamata
              32' Corolla tube exserted, throat narrow
subsp. leptantha
        29' Tip of outer bracts neither 3-lobed nor hooked
 
          33. Bract bases not concave, lobes many, generally forked on back; stamens attached in tube
 
            34. Corolla light blue, 5–7 mm; outer bracts with middle lobe ovate-acuminate
N. mellita
            34' Corolla dark blue, 9–12 mm; outer bracts with middle lobe lanceolate, long-tapered
N. squarrosa
          33' Bracts or their bases concave, lobes few, not forked on back; stamens attached in throat
 
            35. Outer bracts much longer than wide
 
              36. Inflorescence leaves thread-like, lobed only at base
N. filicaulis
              36' Inflorescence leaves strap-shaped or lanceolate, lobed at base and above
N. viscidula
            35' Outer bracts little longer than wide
 
              37. Corolla > calyx, purple; stamens, style exserted
N. heterodoxa
              37' Corolla = calyx, lavender or white; stamens, style included
N. rosulata


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