Taxon Report

Romanzoffia tracyi Jeps.

Tracy's romanzoffia

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Taxon Summary

Romanzoffia tracyi, commonly known as Tracy's romanzoffia, is a perennial herb in the Hydrophyllaceae that is found in California and elsewhere. It occurs within Coastal bluff scrub, and Coastal scrub, growing at elevations from 15 to 30 meters. Romanzoffia tracyi is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Romanzoffia tracyi Jeps.
Common Name:	Tracy's romanzoffia
Family:	Hydrophyllaceae
Element Code:	PDHYD0E030
USDA Plants Symbol:	ROTR
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Mar-May	Mar-May
Elevation:	15-30 (50-100)
General Habitats:	Coastal bluff scrub, Coastal scrub
Microhabitat:	Rocky
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G4
State Rank:	S2
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2.3 to 2B.3 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	9
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	1
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	8

Location


California Endemic: False
California Counties and Islands: Name (Code)
Del Norte (DNT)?, Humboldt (HUM)
Quads: Name (Quad Code)
Cape Mendocino (4012444), Crescent City (4112472)?, Sister Rocks (4112462), Trinidad (4112412)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	%

Notes



Does plant occur in DNT Co.? Possibly threatened by foot traffic. See Flora of California 3:296 (1943) by W.L. Jepson for original description.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 26 November 2025].