familyAsteraceae
tribeAsteraceae tribe Cardueae
genusCirsium
speciesCirsium hydrophilum
varietyCirsium hydrophilum var. hydrophilum

Cirsium hydrophilum var. hydrophilum

David J. Keil
Common names: Suisun thistle
EndemicConservation concern
Treatment appears in FNA Volume 19. Treatment on page 132.
Revision as of 20:34, 27 May 2020 by imported>Volume Importer

Heads usually 2.5–3 cm. Cypselae oblong, ca. 5 mm. 2n = 32.


Phenology: Flowering spring–summer (May–Sep).
Habitat: Tidal marshes
Elevation: 0–5 m

Distribution

V19-102-distribution-map.gif

Calif.

Discussion

Of conservation concern.

Suisun thistle is known only from the Suisun Marsh (Solano County) in the Sacramento River delta.

Variety hydrophilum is listed by the U.S. Fish and Wildlife Service as endangered.

Selected References

None.

Lower Taxa

None.
... more about "Cirsium hydrophilum var. hydrophilum"
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Author
David J. Keil +
Authority
(Greene) Jepson +
Basionyms
Carduus hydrophilus +
Common name
Suisun thistle +
Distribution
Calif. +
Elevation
0–5 m +
Habitat
Tidal marshes +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Number of lower taxa
0 +
Phenology
Flowering spring–summer (May–Sep). +
Publication title
Fl. W. Calif., +
Publication year
1901 +
Reference
None +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse grained fna xml/V19-20-21/V19 102.xml +
Special status
Endemic +  and Conservation concern +
Synonyms
Cirsium vaseyi var. hydrophilum +
Taxon family
Asteraceae +
Taxon name
Cirsium hydrophilum var. hydrophilum +
Taxon parent
Cirsium hydrophilum +
Taxon rank
variety +
Volume
Volume 19 +