View source for Cascadia

{{Treatment/ID
|accepted_name=Cascadia
|accepted_authority=A. M. Johnson
|publications={{Treatment/Publication
|title=Amer. J. Bot.
|place=14: 38, figs. 1, 2. 1927 ,
}}
|basionyms=
|synonyms=
|hierarchy=Saxifragaceae;Cascadia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Saxifragaceae]]</div><div class="higher-taxon"><small>genus</small>[[Cascadia]]</div></div>
|etymology=For the Cascade Mountains of western North America
|volume=Volume 8
|mention_page=page 43, 44, 49, 50, 133
|treatment_page=page 48
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual; herbage glabrous or sparsely red stipitate-glandular. <b>Flowering</b> stems trailing or suberect, leafy, 4–40 cm. <b>Leaves</b> cauline; stipules absent; petiole glabrous; blade ovate to lanceolate, unlobed, base cuneate or attenuate to rounded, margins 3-toothed apically or not, ultimate margins entire, (without lime-secreting hydathodes), apex acute; venation palmate or pinnate. <b>Inflorescences</b> poorly defined, usually paniculiform or racemiform thyrses, sometimes solitary flowers, 2–4-flowered, bracteate. <b>Flowers</b>: hypanthium adnate to proximal 1/3 of ovary, free from ovary 0 mm, adnate portion increasing along with attached ovary at maturity to constitute 2/3–4/5 of fruit, green, (0.8–2 mm); sepals 5, green; petals 5, white; nectary disc present; stamens 10, (distinct); filaments flattened, slightly widened at base; ovary semi-inferior, 2-locular, carpels connate in proximal 1/3 or less; placentation axile, appearing marginal above point of connation of ovaries; styles 2; stigmas 2. <b>Capsules</b> folliclelike, 2-beaked. <b>Seeds</b> brown, oblong, spiny in longitudinal rows. <b>x</b> = 8.</span><!--

-->{{Treatment/Body
|distribution=w United States.
|discussion=<p>Species 1: w United States.</p><!--
--><p>Johnson placed <i>Saxifraga</i> nuttallii in his monotypic genus <i>Cascadia</i> based on the unusual habit, free carpels, and spiny seeds. Molecular phylogenetic data (M. E. Mort and D. E. Soltis 1999; Soltis et al. 2001) placed <i>Cascadia</i> as sister to the southern South American (Tierra del Fuego) Saxifragodes D. M. Moore, both sister to <i>Micranthes</i>. Mort and Soltis considered the ovary of <i>Cascadia</i> to be superior because the two carpels are distinct to their bases; the hypanthium, fused to each carpel, gives the ovaries a semi-inferior appearance. Ovules in <i>Cascadia</i> are bitegmic, as in <i>Saxifraga</i>; those of <i>Micranthes</i> are usually unitegmic.</p><!--
--><p>Species 1</p>
|tables=
|references={{Treatment/Reference
|id=johnson1927a
|text=Johnson, A. M. 1927. The status of Saxifraga nuttallii. Amer. J. Bot. 14: 38–43.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Cascadia
|author=Luc Brouillet
|authority=A. M. Johnson
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Saxifragaceae
|illustrator=Linny Heagy
|illustration copyright=Flora of North America Association
|distribution=w United States.
|reference=johnson1927a
|publication title=Amer. J. Bot.
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V8/V8_86.xml
|genus=Cascadia
}}<!--

-->[[Category:Treatment]][[Category:Saxifragaceae]]