Jepson Flora Project: Jepson Interchange    
 

The Jepson Manual: Higher Plants of California

    THIS PAGE IS NO LONGER UPDATED
    AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

Names are linked to treatments from the Manual


Key to COLLINSIA

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

  1. Flowers crowded in whorls; lower pedicels < calyx
 
    2. Corolla ± uniformly purple; upper lip with winged appendages > 1 mm near base
C. greenei
    2' Upper lip or entire corolla paler; upper lip wingless
 
      3. Upper filaments with curved basal spur > 1 mm projecting into pouch; corolla throat as wide as long; calyx lobes generally sharp-tipped
C. heterophylla
      3' Filaments ± unspurred; corolla throat longer than wide; calyx lobes generally ± blunt-tipped
 
        4. Upper lip < 1/2 lower
 
          5. Leaf glabrous below; inflorescence ± head-like; corolla upper lobes ± 1 mm, dry, brownish, lateral lobes glabrous, throat barely angled to tube, pouch low; inflorescence glandless; North Coast
C. corymbosa
          5' Leaf hairy below; inflorescence generally of several whorls; corolla upper lobes >> 1 mm, red-banded, lateral lobes generally hairy, throat strongly angled to tube, pouch prominent; inflorescence densely glandular, staining; widespread
C. tinctoria
        4' Upper lip ± = lower in fully open flowers
 
          6. Corolla bluish, not drying veiny, upper lobes notched, lateral lobes and tip of middle lobe generally hairy; leaves thin, entire to toothed; San Bernardino Mountains, Peninsular Ranges
C. concolor
          6' Corolla generally white to ± purplish, generally drying veiny, upper lobes ± toothed, often back-to-back, lower lip generally glabrous; leaves thick, crenate; widespread
C. bartsiifolia
            7. Corolla 15–20 mm; seed < 1 mm; especially n California
var. bartsiifolia
            7' Corolla 9–14 mm; seed ± 1.5 mm; especially s California
var. davidsonii
  1' Flowers solitary or whorled, not very crowded; lower pedicels > calyx
 
    8. Corolla ± uniformly dark purple, upper lip ± 1/2 lower, with winged appendages > 1 mm near base
C. greenei
    8' Upper lip or entire corolla paler, upper lip ± = lower, wingless
 
      9. Leaves generally ± lanceolate-deltate, generally coarsely toothed; lowest pedicels 1–2 per node, >> calyx, upper 3+ per node, shorter — n&c Central Coast, n Outer South Coast Ranges
C. multicolor
      9' Leaves linear to ovate, generally entire or crenate; pedicels ± equal
 
        10. Inflorescence ± glandless
 
          11. Calyx lobes generally blunt-tipped
C. parryi
          11' Calyx lobes sharp-tipped
 
            12. Upper filaments and middle corolla lobe glabrous; calyx ± = fruit, lobes not widely spreading; seeds plump, oblong, unwinged
 
              13. Corolla 8–15 mm, main lobes generally 2–6 mm wide, obovate, throat strongly angled to tube
C. grandiflora
              13' Corolla 4–8 mm, main lobes ± 1 mm wide, oblong, throat barely angled to tube
C. parviflora
            12' Upper filaments and middle corolla lobe hairy; calyx generally >> fruit, lobes widely spreading in fruit; seeds flat, roundish, ± winged — fruit generally red-blotched
C. sparsiflora
              14. Largest corollas > 13 mm
var. arvensis
              14' Corollas < 13 mm
 
                15. Corolla 5–8 mm, throat barely angled to tube, pouch hidden by calyx
var. collina
                15' Corolla 7–13 mm, throat strongly angled to tube, pouch evident
var. sparsiflora
        10' Inflorescence conspicuously glandular
 
          16. Pedicels spreading to ascending in fruit; upper most bracts > 2 mm
 
            17. Middle and upper leaves oblong to ovate, generally < 6 × longer than wide
 
              18. Plant fleshy; upper leaves clasping; seeds 6–8, ± 2 mm; calyx lobes ± = fruit
C. callosa
              18' Plant not fleshy; upper leaf bases tapered; seeds 2, ± 3 mm; calyx lobes > fruit
C. childii
            17' Middle and upper leaves ± linear, generally > 6 × longer than wide
 
              19. Corolla generally 8–12 mm, >> 2 × calyx, strongly angled to tube, pouch prominent
C. linearis
              19' Corolla < 8 mm, generally < 2 × calyx, barely angled to tube, pouch ± hidden by calyx
C. rattanii
          16' Some pedicels strongly reflexed in fruit; upper most bracts 0–2 mm
C. torreyi
            20. Corollas < 7 mm
var. wrightii
            20' Some corollas > 7 mm
 
              21. Middle corolla lobe << lateral lobes
var. brevicarinata
              21' Middle corolla lobe ± = lateral lobes
 
                22. Leaves elliptic to ovate (generally 2–5 × longer than wide)
var. latifolia
                22' Leaves ± linear (generally > 6 × longer than wide)
var. torreyi


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