Hemizonia congesta ssp. tracyi Calflora

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Taxon Report

Hemizonia congesta DC. ssp. tracyi Babc. & H. M. Hall

Hayfield tarweed, Tracy's tarplant

2016 Steve Matson

Hemizonia congesta ssp. tracyi is an annual herb that is native to California, and endemic (limited) to California.

also called Hemizonia tracyi

California Rare Plant Rank: 4.3 (limited distribution).


	Plant Range Observation Search ~107 records in California Plant Characteristics one or more occurrences within a 7.5-minute quadrangle

Bloom Period

Photos on Calflora


Parent:	Hemizonia congesta
Genus:	Hemizonia
Family:	Asteraceae
Category:	angiosperm
PLANTS group:	Dicot
Jepson eFlora section: eudicot

Ultramafic affinity: 1.8 - weak indicator

Habitat: openings

Communities: Redwood Forest, Yellow Pine Forest, Coastal Prairie

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:


PLANTS	Hemizonia luzulifolia ssp. tracyi
CNPS + PLANTS	Hemizonia tracyi

Information about Hemizonia congesta ssp. tracyi from other sources


Nursery availability from CNPLX Commercial availability unknown. Jepson eFlora USDA PLANTS Profile (HECOT) Photos on Calflora Photos on CalPhotos Google Images Photos on iNaturalist ID Tips on PlantID.net	ITIS Original Publication citation International Plants Names Index Search efloras.org (Flora of North America) Landscape information from Calscape BONAP Distribution Map CNPS Inventory: 4.3 Consortium of California Herbaria 2 Search the Native American Ethnobotany Database	Add an Observation Location Suitability Planting Guide Distribution by County
photos / record / common / links

Suggested Citation

Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 05/23/2025).