Difference between revisions of "Xylorhiza cognata"
Brittonia 29: 204. 1977.
Common names: Mecca woody-aster
Basionym: Aster cognatus H. M. Hall
Synonyms: Machaeranthera cognata (H. M. Hall) Cronquist & D. D. Keck
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|distribution=Calif. | |distribution=Calif. | ||
|discussion=<p>Of conservation concern.</p><!-- | |discussion=<p>Of conservation concern.</p><!-- | ||
− | --><p>Xylorhiza cognata is known only from Riverside County.</p> | + | --><p><i>Xylorhiza cognata</i> is known only from Riverside County.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1977 | |publication year=1977 | ||
|special status= | |special status= | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V20_928.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Xylorhiza | |genus=Xylorhiza |
Revision as of 16:28, 18 September 2019
Shrubs, 50–150 cm. Stems branched to near apices, glabrescent (younger stems and branches stipitate-glandular). Leaf blades spatulate to ovate, 3–20 mm wide, bases attenuate, subclasping, margins flat, coarsely spinulose-toothed, faces glabrous, sparsely stipitate-glandular. Peduncles 5–11(–20) cm. Involucres 15–20 × 20–40 mm. Phyllaries loosely appressed, outermost (at least margins) stipitate-glandular, innermost shorter than mid. Ray florets (12–)20–29(–32); corollas light blue to violet. Style-branch appendages shorter than stigmatic lines. 2n = 12.
Phenology: Flowering Jan–Apr(–Jun).
Habitat: Slopes and bottoms of deep ravines in clay, rocky sand, and gravel
Elevation: 20–300 m
Discussion
Of conservation concern.
Xylorhiza cognata is known only from Riverside County.
Selected References
None.
Lower Taxa
None.