Helianthus gracilentus

slender sunflower
Family:Asteraceae

Rarity

CNPS-EB: B

9 current natural populations

Criteria:
  • Narrow Range in ALA & CCA
  • N Limit
  • E Limit
  • Fire Follower

Ecology

Flowers April - October
Habitats:
  • Burns
  • Open Dry Slope

All Helianthus

  • H. californicus (C)
  • H. gracilentus
  • Populations

    Key
    LocationPop IDLast RecordedNotes
    Lime Ridge area32021-04-30
    Los Vaqueros Watershed112023-09-27
    Los Vaqueros Watershed132022-04-10
    Morgan Territory Rgnl Park122022-03-12
    Mt. Diablo State Park - North side92020-06-04
    Mt. Diablo State Park - North side102020-05-12
    Mt. Diablo State Park - South side42002-05-11
    Mt. Diablo State Park - West side82001-05-08
    Shell Ridge142022-05-08
    Mt. Diablo State Park - North side11932-12-31Historic
    Mt. Diablo State Park - North side21935-12-31Historic
    Mt. Diablo State Park - South side51933-05-11Historic
    Mt. Diablo State Park - South side71999-06-12Historic
    Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo61994-12-31Historic