Pseudognaphalium biolettii

Bioletti's cudweed

Family:Asteraceae

Rarity

CNPS-EB: A2

6 current natural populations

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus Pseudognaphalium
- Pseudognaphalium biolettii
CCH2

Key

Ecology

Flowers April - June

Habitats:

Open Dry Slope
Sand, Sandstone

All Pseudognaphalium

P. beneolens (C)
P. biolettii
P. microcephalum (A2)

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Huckleberry Rgnl Preserve	10	2026-06-05
Joaquin Miller Park, Oakland	3	2002-12-31
Joaquin Miller Park, Oakland	9	2025-08-03
Pt. Molate	4	2026-01-29
San Pablo Reservoir - EBMUD	7	2019-06-08
Sibley Rgnl Park	6	2023-05-29
Albany Hill	1	1997-12-31	Historic
Clayton Ranch - SE of Clayton, EBRPD	2	1999-12-31	Historic
Huckleberry Rgnl Preserve	8	2025-05-07	ID Uncertain
Strawberry Canyon	5	1892-12-31	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.