Difference between revisions of "Hazardia detonsa"
Pittonia 1: 29. 1887.
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|common_names=Island bristleweed | |common_names=Island bristleweed | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Corethrogyne detonsa | |name=Corethrogyne detonsa | ||
|authority=Greene | |authority=Greene | ||
| + | |rank=species | ||
|publication_title=Bull. Torrey Bot. Club | |publication_title=Bull. Torrey Bot. Club | ||
|publication_place=10: 41. 1883 | |publication_place=10: 41. 1883 | ||
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|name=Haplopappus detonsus | |name=Haplopappus detonsus | ||
|authority=(Greene) P. H. Raven | |authority=(Greene) P. H. Raven | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Hazardia;Hazardia detonsa | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Hazardia;Hazardia detonsa | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Hazardia detonsa | name=Hazardia detonsa | ||
| − | |||
|authority=(Greene) Greene | |authority=(Greene) Greene | ||
|rank=species | |rank=species | ||
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|publication title=Pittonia | |publication title=Pittonia | ||
|publication year=1887 | |publication year=1887 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_1036.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Hazardia | |genus=Hazardia | ||
Latest revision as of 19:58, 5 November 2020
Shrubs, 60–250 cm. Stems lanate-tomentose. Leaves subsessile or subpetiolate; blades obovate, 40–140 × 10–50 mm, subcoriaceous, bases not clasping, margins serrulate to subentire, abaxial faces densely lanate-tomentose, adaxial densely short-tomentose. Heads in thyrsiform to subcorymbiform heads. Involucres campanulate, 10–13 × 10–13 mm. Phyllaries erect, oblong, apices acute, faces densely woolly. Ray florets 6–14, fertile; corollas shorter than involucre, inconspicuous. Disc florets 30–40; corollas 8–10 mm. Cypselae 3–4 mm, canescent. 2n = 10.
Phenology: Flowering Apr–Nov.
Habitat: Open, rocky hillsides, canyon walls, often with Pinus, Quercus, Ceanothus, Rhus, Arctostaphylos
Elevation: 10–300 m
Discussion
Hazardia detonsa is known from Anacapa, Santa Rosa, and Santa Cruz islands. It is little differentiated from H. cana and clearly its evolutionary sister. In both taxa, the ray and disc florets often change to red-purple with maturity.
Selected References
None.