View source for Jensia

{{Treatment/ID
|accepted_name=Jensia
|accepted_authority=B. G. Baldwin
|publications={{Treatment/Publication
|title=Novon
|place=9: 464. 1999
|year=1999
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Madiinae;Jensia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Madiinae]]</div><div class="higher-taxon"><small>genus</small>[[Jensia]]</div></div>
|etymology=For Jens Christian Clausen, 1891–1969, Californian botanist
|volume=Volume 21
|mention_page=page 255, 300, 302
|treatment_page=page 301
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> 5–60 cm (self-incompatible). <b>Stems</b> erect. <b>Leaves</b> mostly cauline; proximal opposite (often crowded), distal alternate; sessile; blades spatulate to linear, margins entire or toothed, faces hirsute to strigose (distal leaves sometimes stipitate-glandular as well). <b>Heads</b> radiate, in ± umbelliform arrays. <b>Peduncular</b> bracts: pit-glands, tack-glands, and/or spines 0. <b>Involucres</b> ± obconic or urceolate to globose, 3–5 mm diam. <b>Phyllaries</b> 2–12 in 1 series (lanceolate to lance-attenuate, herbaceous, each usually wholly enveloping a ray ovary, abaxially hirsute, hair tips ± uncinate). <b>Receptacles</b> flat to convex, glabrous or setulose, paleate (paleae falling, in 1 series between rays and discs, connate, herbaceous to ± scarious). <b>Ray</b> florets 2–12, pistillate, fertile; corollas yellow, sometimes purple-veined abaxially. <b>Disc</b> florets 1–65, functionally staminate; corollas yellow, tubes shorter than funnelform throats, lobes 5, deltate (anthers ± dark purple; styles glabrous proximal to branches). <b>Ray</b> cypselae compressed, clavate, arcuate, basal attachments oblique, faces glabrous, apices beaked. <b>Ray</b> pappi crowns of scales (0.1–1 mm); disc pappi of 5–7 (white or purple-tipped) subulate, crisped, ciliolate scales (2.5–3 mm). <b>x</b> = 8.</span><!--

-->{{Treatment/Body
|distribution=Calif.
|discussion=<p>Species 2 (2 in the flora).</p><!--
--><p>Recognition of <i>Jensia</i> is based on evidence that <i>Madia</i> in the sense of D. D. Keck (1959) is not monophyletic; the epappose annuals constituting <i>Madia</i> in the restricted sense are more closely related to <i>Carlquistia</i> than to <i>Jensia</i> (B. G. Baldwin 1996).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Plants 6–60 cm; involucres urceolate or globose; ray florets 5–12, laminae 4–10 mm; discflorets 16–65
|[[Jensia rammii|Jensia rammii]]
|-id=key-0-1
|1
|Plants 5–25 cm; involucres broadly obconic; ray florets 2–8, laminae 0.5–3 mm; disc florets1–7
|[[Jensia yosemitana|Jensia yosemitana]]
|}
</div></div><!--

-->{{#Taxon:
name=Jensia
|author=Bruce G. Baldwin;John L. Strother
|authority=B. G. Baldwin
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=
|family=Asteraceae
|illustrator=Barbara Alongi
|illustration copyright=Flora of North America Association
|distribution=Calif.
|reference=None
|publication title=Novon
|publication year=1999
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_736.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Madiinae
|genus=Jensia
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Madiinae]]