Trillium ovatum subsp. ovatum

white trillium

Family:Melanthiaceae

Rarity

CNPS-EB: A2

11 current natural populations

Criteria:

Limited/Threatened Habitat
Narrow Range in ALA & CCA
E Limit
S Limit

Observations

Key

Ecology

Flowers February - April

Habitats:

Forest
Redwood Forest

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Canyon Area - EBMUD land nearby	1	2014-03-19
Huckleberry Rgnl Preserve	3	2018-04-25
Joaquin Miller Park, Oakland	4	2023-03-12
Joaquin Miller Park, Oakland	5	2021-04-04
Joaquin Miller Park, Oakland	15	2024-03-27
Las Trampas Rgnl Wilderness	6	2009-03-07
Redwood Rgnl Park	8	2021-06-09
Redwood Rgnl Park	9	2023-04-12
Redwood Rgnl Park	11	2017-02-23
Redwood Rgnl Park	16	2024-02-23
Strawberry Canyon	12	2005-02-22
Chabot Rgnl Park	13	1999-12-31	ID Uncertain
Garin Rgnl Park	2	1997-03-06	Historic
Moraga - other or unknown sites	7	1992-12-31	Historic
Pleasanton Ridge Rgnl Park	14	1999-12-31	ID Uncertain
Redwood Rgnl Park	10	1992-03-08	Historic

The list of populations shows the distinct populations identified by the CNPS-EB Rare and Unusual Plants Committee. The locations in this list are very general. More specific location details can be obtained from the links in the Observations section (for some of these links, a login is required).

Font

Populations in bold type have precise coordinates available for field volunteers and researchers.

Populations in normal type are only known from a description of the location; no precise coordinates are available.

Background

Populations with a white background have been observed in the last 25 years.

Populations with a blue background have not been observed for at least 25 years.

Populations with an orange background have an uncertain location or identification, or are planted.

Columns

Pop ID is a label that identifies the population. Many locations have more than one population of a species, and the population ID is used to distinguish them.