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    THIS PAGE IS NO LONGER UPDATED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 CERASTIUM

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

  1. Annual; stems generally all flower, ascending to erect
 
    2. Calyx 8.5–12 mm; fruit 14–22 mm; seeds ± 1 mm
C. dichotomum
    2' Calyx 3.5–7 mm; fruit 3.5–11 mm; seeds ± 0.4–1 mm
 
      3. Sepals with hairs < tip, scarious margin of most outer sepals 0.2–0.6 mm wide; upper bracts scarious-margined; pedicels in fruit generally > sepals
C. fontanum subsp. vulgare
      3' Sepals with some long hairs 0.2–0.8 mm > tip; scarious margin of most outer sepals < 0.1 mm wide; all bracts herbaceous; pedicels in fruit (except lowest) < sepals
C. glomeratum
  1' Perennial; stems both vegetative (mat-forming) and flower (± erect)
 
    4. Petals generally < to 0.5 mm > sepals
C. fontanum subsp. vulgare
    4' Petals ± 1.2–6 mm > sepals
 
      5. Leaves clustered in flower stem axils (especially lower); petals 3–6 mm > sepals; fruit 9–16 mm; seeds ± 1–1.3 mm; < 2500 m
C. arvense
      5' Leaves not clustered in flower stem axils; petals 1.2–2.8 mm > sepals; fruit 5.5–8.5 mm; seeds 0.7–0.8 mm; 2900–4300 m
C. beeringianum var. capillare


University & Jepson Herbaria Home Page |

Copyright by the Regents of the University of California