Difference between revisions of "Castilleja ambigua var. meadii"

J. M. Egger & Ruygt

Phytoneuron 2012-68: 2, figs. 1, 3–7, 9[left]. 2012.

Common names: Mead’s owl’s-clover
EndemicConservation concern
Treatment appears in FNA Volume 17. Treatment on page 586. Mentioned on page 584.
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|elevation=400–500 m.
 
|elevation=400–500 m.
 
|distribution=Calif.
 
|distribution=Calif.
|discussion=<p>Variety meadii is limited to vernally wet habitats, growing over rocks of the Sonoma Volcanic Formation in central Napa County near Atlas Peak. All known populations are under private ownership, and the variety is of conservation concern due to its very limited range. For the present, all populations except one are protected by conservation easements. Variety meadii often grows alongside, but does not hybridize with, Castilleja attenuata and C. densiflora. Ongoing study of annual species of Castilleja suggests this variety is genetically distinctive and may deserve full species status (S. J. Jacobs et al. 2018).</p>
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|discussion=<p>Variety meadii is limited to vernally wet habitats, growing over rocks of the Sonoma Volcanic Formation in central Napa County near Atlas Peak. All known populations are under private ownership, and the variety is of conservation concern due to its very limited range. For the present, all populations except one are protected by conservation easements. Variety meadii often grows alongside, but does not hybridize with, <i>Castilleja attenuata</i> and <i>C. densiflora</i>. Ongoing study of annual species of <i>Castilleja</i> suggests this variety is genetically distinctive and may deserve full species status (S. J. Jacobs et al. 2018).</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Castilleja ambigua var. meadii
 
name=Castilleja ambigua var. meadii
|author=
 
 
|authority=J. M. Egger & Ruygt
 
|authority=J. M. Egger & Ruygt
 
|rank=variety
 
|rank=variety
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|publication year=2012
 
|publication year=2012
 
|special status=Endemic;Conservation concern
 
|special status=Endemic;Conservation concern
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V17/V17_1021.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V17/V17_1021.xml
 
|genus=Castilleja
 
|genus=Castilleja
 
|species=Castilleja ambigua
 
|species=Castilleja ambigua

Latest revision as of 19:24, 5 November 2020

Stems erect, unbranched, sometimes with a few divaricate-ascending branches from proximal 1/2 of stem above base. Leaves linear or linear-lanceolate to lanceolate, 1 mm wide at base, not fleshy, apex acuminate. Bracts proximally pale greenish, distally white on lobe apices, often becoming entirely greenish with age; lobes divaricate-ascending, linear, 8–14 mm, usually arising below mid length. Calyces with all 4 clefts subequal or lateral clefts shallower; lateral clefts 2–3 mm, 25% of calyx length. Corollas 14–21 mm; beak pale, off-white, pale yellow, green with margins off-white, or yellow, sometimes orange, 1–4 mm; abaxial lip pale yellow; teeth white to green.


Phenology: Flowering Apr–Jun(–Jul).
Habitat: Seasonally wet meadows with volcanic substrates in oak-pine woodlands or chaparral, shallow vernal pools, ephemeral stream margins.
Elevation: 400–500 m.

Discussion

Variety meadii is limited to vernally wet habitats, growing over rocks of the Sonoma Volcanic Formation in central Napa County near Atlas Peak. All known populations are under private ownership, and the variety is of conservation concern due to its very limited range. For the present, all populations except one are protected by conservation easements. Variety meadii often grows alongside, but does not hybridize with, Castilleja attenuata and C. densiflora. Ongoing study of annual species of Castilleja suggests this variety is genetically distinctive and may deserve full species status (S. J. Jacobs et al. 2018).

Selected References

None.

Lower Taxa

None.
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
J. M. Egger & Ruygt +
Mead’s owl’s-clover +
400–500 m. +
Seasonally wet meadows with volcanic substrates in oak-pine woodlands or chaparral, shallow vernal pools, ephemeral stream margins. +
Flowering Apr–Jun(–Jul). +
Phytoneuron +
Endemic +  and Conservation concern +
Euchroma +  and Oncorhynchus +
Castilleja ambigua var. meadii +
Castilleja ambigua +
variety +