Taxon Report

Scrophularia atrata Penn.

black-flowered figwort

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Species Description:
Scrophularia atrata, commonly known as black-flowered figwort, is a perennial herb in the Scrophulariaceae that is found only in California. It occurs within Chaparral, Closed-cone coniferous forest, Coastal dunes, Coastal scrub, and Riparian scrub, growing at elevations from 10 to 500 meters. Scrophularia atrata is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

  Classification

Scientific Name:
Scrophularia atrata Penn.
Common Name:
black-flowered figwort
Family: Scrophulariaceae
Element Code: PDSCR1S010
USDA Plants Symbol: SCAT3
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: Mar-Jul Mar-Jul
Elevation: 10-500 (35-1640)
General Habitats: Chaparral, Closed-cone coniferous forest, Coastal dunes, Coastal scrub, Riparian scrub
Microhabitat:
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 62
Element Occurrence Ranks:
   Excellent (A) 4
   Good (B) 5
   Fair (C) 9
   Poor (D) 0
   None (X) 1
   Unknown (U) 43
California Endemic:  True
California Counties and Islands: Name (Code)
San Luis Obispo (SLO), Santa Barbara (SBA)
Quads: Name (Quad Code)
Arroyo Grande NE (3512025), Casmalia (3412075), Dos Pueblos Canyon (3411948), Gaviota (3412042), Goleta (3411947), Guadalupe (3412085), Lompoc (3412064), Lompoc Hills (3412054), Los Alamos (3412063), Oceano (3512015), Orcutt (3412074), Pismo Beach (3512026), Point Arguello (3412056), Point Sal (3412086), Santa Barbara (3411946), Santa Rosa Hills (3412053), Solvang (3412052), Surf (3412065), Tajiguas (3412041)

Threat List Data from the CNDDB

Threat List Total: 11
EOs with Threat Listed: Total EOs % of EOs
24 39 %
Development 15 24%
Road/trail construction/maint. 11 17%
Erosion/runoff 2 3%
Foot traffic/trampling 1 1%
Grazing 1 1%
Landfill 1 1%
Mining 1 1%
Other 1 1%
Vandalism/dumping/litter 1 1%
Wood cutting or brush clearing 1 1%
Altered flood/tidal/hydrologic regime 1 1%

Notes

Threats:
Threatened by energy development and mining.
Taxonomy:
Plants from south of Pt. Conception (143A, 143B, 144A, 144B) are probably hybrids with S. californica ssp. floribunda.
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 24 January 2025].