familyAsteraceae
genusMicroseris
speciesMicroseris douglasii
subspeciesMicroseris douglasii subsp. douglasii
Difference between revisions of "Microseris douglasii subsp. douglasii"
Common names: Douglas’s silverpuffs
Synonyms: Microseris attenuata Greene Microseris parishii Greene Microseris platycarpha var. parishii (Greene) H. M. Hall
Treatment appears in FNA Volume 19. Treatment on page 344.
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Revision as of 20:18, 16 December 2019
Cypselae columnar, 4–10 mm (tapered to basal callosities, filled by embryos or distal 1/4–1/2 empty), ribs slightly flared apically, slightly constricted below flaring; pappi of orbiculate to lanceolate, arcuate, involute (glabrous or villous) scales 1–6.5 mm, usually 1–6 mm shorter than cypselae. 2n = 18.
Phenology: Flowering Mar-–Jun.
Habitat: Clay soils, flats and hillsides, often by vernal pools or near serpentine outcrops, grasslands and open oak and Pinus sabiniana woodlands
Elevation: 10–800 m
Discussion
Subspecies douglasii is the common subspecies away from the coast in cismontane California, north of the Transverse Ranges; it is relatively rare in southwestern California and southern Oregon. Some populations near the coast appear to be hybrids between it, or subsp. tenella, and Microseris bigelovii.
Selected References
None.
Lower Taxa
None.
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