UCJEPS: keys

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THIS PAGE IS NO LONGER UPDATED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