Difference between revisions of "Lasthenia burkei"

(Greene) Greene

Man. Bot. San Francisco, 204. 1894.

Common names: Burke’s goldfields
Basionym: Baeria burkei Greene Bull. Calif. Acad. Sci. 2: 151. 1887
Treatment appears in FNA Volume 21. Treatment on page 345.
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--><p><i>Lasthenia burkei</i> is known only from relatively few populations in the coast ranges north of San Francisco Bay. It is allopatric from other members of <i>Lasthenia </i>sect.<i> Ornduffia</i>. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
 
--><p><i>Lasthenia burkei</i> is known only from relatively few populations in the coast ranges north of San Francisco Bay. It is allopatric from other members of <i>Lasthenia </i>sect.<i> Ornduffia</i>. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
 
|tables=
 
|tables=
|references=
+
|references={{Treatment/Reference
 +
|id=ornduff1969b
 +
|text=Ornduff, R. 1969. The origin and relationship of Lasthenia burkei (Compositae). Amer. J. Bot. 56: 1042–1047.
 +
}}
 
}}<!--
 
}}<!--
  
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|elevation=0–500 m
 
|elevation=0–500 m
 
|distribution=Calif.
 
|distribution=Calif.
|reference=None
+
|reference=ornduff1969b
 
|publication title=Man. Bot. San Francisco,
 
|publication title=Man. Bot. San Francisco,
 
|publication year=1894
 
|publication year=1894
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_861.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_861.xml
 
|tribe=Asteraceae tribe Heliantheae
 
|tribe=Asteraceae tribe Heliantheae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Baeriinae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Baeriinae

Revision as of 20:40, 16 December 2019

Annuals, to 30 cm. Stems erect, branched distally, hairy. Leaves linear, 10–50 × 1–2+ mm (simple blades or single lobes), margins entire or pinnately lobed, faces glabrous or ± hairy. Involucres hemispheric or obconic, 4–6 mm. Phyllaries 7–16 (distinct), ovate, hairy. Receptacles conic or dome-shaped, muriculate, glabrous or hairy. Ray florets 8–13; laminae oblong to oval, to 6 mm. Anther appendages linear to ± ovate. Cypselae black or gray, clavate, to 1.5 mm, hairy; pappi usually of 1(–2) aristate scales plus 3–6+ shorter, ± subulate scales. 2n = 12.


Phenology: Flowering Apr–Jun.
Habitat: Vernal pools and wet meadows
Elevation: 0–500 m

Discussion

Of conservation concern.

Lasthenia burkei is known only from relatively few populations in the coast ranges north of San Francisco Bay. It is allopatric from other members of Lasthenia sect. Ornduffia. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Lower Taxa

None.