Cirsium douglasii var. douglasii

Endemic
Treatment appears in FNA Volume 19. Treatment on page 133.
Revision as of 20:47, 5 November 2020 by imported>Volume Importer
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Plants to 150 cm. Cauline leaves usually deeply lobed, spines usually 7–20 mm. Heads mostly 2.5–3.5 cm. 2n = 34.


Phenology: Flowering summer (Jun–Aug).
Habitat: Springs, seeps, streamsides, coastal bluffs, coniferous and hardwood forests, often on serpentine
Elevation: 10–1200 m

Discussion

Variety douglasii grows in the Coast Ranges from Humboldt to Monterey and San Benito counties.

Selected References

None.

Lower Taxa

None.
David J. Keil +
de Candolle +
Asteraceae tribe Cynareae +
10–1200 m +
Springs, seeps, streamsides, coastal bluffs, coniferous and hardwood forests, often on serpentine +
Flowering summer (Jun–Aug). +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Compositae +
Cirsium douglasii var. douglasii +
Cirsium douglasii +
variety +