Taxon Report

Pseudobahia bahiifolia (Benth.) Rydb.

Hartweg's golden sunburst

Print Report


Taxon Summary

Pseudobahia bahiifolia, commonly known as Hartweg's golden sunburst, is a annual herb in the Asteraceae that is found only in California. It occurs within Cismontane woodland, and Valley and foothill grassland, growing at elevations from 15 to 150 meters. Pseudobahia bahiifolia is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.


  Classification

Scientific Name:
Pseudobahia bahiifolia (Benth.) Rydb.
Common Name:
Hartweg's golden sunburst
Family: Asteraceae
Element Code: PDAST7P010
USDA Plants Symbol: PSBA
Synonyms/Other Names:

Ecology and Life History

Lifeform: annual herb
Blooming Period: Mar-Apr Mar-Apr
Elevation: 15-150 (50-490)
General Habitats: Cismontane woodland, Valley and foothill grassland
Microhabitat: Acidic (often), Clay
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 27
Element Occurrence Ranks:
   Excellent (A) 2
   Good (B) 19
   Fair (C) 0
   Poor (D) 1
   None (X) 4
   Unknown (U) 1
California Endemic:  True
California Counties and Islands: Name (Code)
Fresno (FRE), Madera (MAD), Merced (MER), Stanislaus (STA), Sutter (SUT), Tuolumne (TUO), Yuba (YUB)*
Quads: Name (Quad Code)
Cooperstown (3712065), Friant (3611986), Gilsizer Slough (3912116), Haystack Mtn. (3712043), Knights Ferry (3712076)*, La Grange (3712064), Merced Falls (3712053), Millerton Lake West (3711916), Olivehurst (3912115), Snelling (3712054), Sutter (3912126), Yuba City (3912125)*

Threat List Data from the CNDDB

Threat List Total: 11
EOs with Threat Listed: Total EOs % of EOs
19 70 %
Grazing 17 62%
Development 10 37%
Erosion/runoff 5 18%
Foot traffic/trampling 4 14%
Other 4 14%
Agriculture 4 14%
Road/trail construction/maint. 3 11%
Mining 3 11%
Non-native plant impacts 3 11%
ORV activity 2 7%
Vandalism/dumping/litter 1 3%

Notes

Many occurrences are very small.
Threats:

Seriously threatened by development, agriculture, overgrazing, and trampling.

Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 5 February 2025].