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    THIS PAGE IS NO LONGER UPDATED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 VACCINIUM

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

  1. Leaves evergreen (but see V. parvifolium), leathery, veins not prominent on lower side; pedicels jointed to flower; filaments ± hairy
 
    2. Plant 5–30 dm, branches stout; leaf > 20 mm, serrate; corolla lobes < tube, erect to spreading when anthers open
V. ovatum
    2' Plant < 1.5 dm, branches slender; leaf generally 7–17 mm, ± entire; corolla lobes >> tube, reflexed when anthers open
V. macrocarpon
  1' Leaves deciduous, thin or ± thickened, veins generally prominent on lower side; pedicels not jointed to flower; filaments glabrous
 
    3. Leaf entire; calyx lobes generally > tube, persistent; twigs not angled, not green; flowers solitary or few on leafless older shoots
V. uliginosum subsp. occidentale
    3' Leaf serrate or minutely so (but see V. parvifolium); calyx lobes ± 0 or generally < tube, deciduous; twigs angled or not, green or not; flowers often solitary in axils of lowest leaves of youngest shoots
 
      4. Twigs strongly angled, green; fruit red (or dark purple when dry)
 
        5. Shrubby shrub, < 5 dm, rhizomed; leaf serrate, lower surface glabrous
V. scoparium
        5' Erect shrub, > 5 dm, not rhizomed; leaf entire to serrate or with only a deciduous, sharp point at tip, lower surface, especially midvein, puberulent
V. parvifolium
      4' Twigs not or weakly angled, not green but sometimes greenish or yellowish green; fruit not red (but see V. membranaceum)
 
        6. Plant generally 5–15 dm; twigs weakly angled; leaf generally ovate to elliptic or obovate, 2–5 cm, very thin, membranous, often rounded to truncate at base, acute at tip
V. membranaceum
        6' Plant generally < 5 dm; twigs not or weakly angled; leaf generally oblong or obovate to oblanceolate, rarely elliptic, generally 1–3.5 cm, generally thin but not membranous, tapered at base, seldom acute at tip
 
          7. Youngest twigs generally puberulent or glandular; leaf not glaucous, generally oblong or obovate to elliptic; corolla narrowly urn-shaped; fruit < 9 mm wide
V. caespitosum
          7' Youngest twigs generally glabrous, glaucous; leaf glaucous, obovate or oblanceolate, rarely elliptic; corolla ± spheric; fruit > 9 mm wide
V. deliciosum


Comments or questions on page
University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites |

Copyright by the Regents of the University of California