View source for Dudleya attenuata subsp. attenuata

{{Treatment/ID
|accepted_name=Dudleya attenuata subsp. attenuata
|accepted_authority=
|publications=
|common_names=Orcutt’s dudleya
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Dudleya attenuata subsp. orcuttii
|authority=
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Stylophyllum orcuttii
|authority=Britton
|rank=species
}} {{Treatment/ID/Synonym
|name=Stylophyllum parishii
|authority=
|rank=species
}}
|hierarchy=Crassulaceae;Dudleya;Dudleya subg. Stylophyllum;Dudleya attenuata;Dudleya attenuata subsp. attenuata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Crassulaceae]]</div><div class="higher-taxon"><small>genus</small>[[Dudleya]]</div><div class="higher-taxon"><small>subgenus</small>[[Dudleya subg. Stylophyllum]]</div><div class="higher-taxon"><small>species</small>[[Dudleya attenuata]]</div><div class="higher-taxon"><small>subspecies</small>[[Dudleya attenuata subsp. attenuata]]</div></div>
|volume=Volume 8
|mention_page=page 193
|treatment_page=page 176
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Caudices </b>0.5–2 dm × 0.3–1[–1.5] cm, clumps 1–4 dm diam. <b>Leaves</b> without resinous odor; rosette (lax), 5–20-leaved, 2–5(–10) cm diam.; blade often purplish, linear to linear-oblanceolate and somewhat clavate, terete or flattened adaxially towards base, 2–10 × 0.2–0.5 cm, 2–5 mm thick, to 2 times wider than thick, base 5–15 mm wide, surfaces farinose, not viscid, not oily. <b>Inflorescences</b>: cyme 1–3-branched, obpyramidal, (2–15(–20) × 1–10 dm); branches simple; cincinni 3–15-flowered, not circinate, 2–11 cm; floral shoots 0.5–2.5 dm × 1–3 mm; leaves 5–10, ascending, linear-lanceolate, (turgid), 5–3.5 × 0.2–0.5 cm. <b>Pedicels</b> 0.5–3 mm. <b>Flowers</b>: petals widespreading or somewhat ascending from near middle, connate 0.5–1 mm, white often flushed with rose, especially on keel, triangular-ovate, 6–10 × 1.5–3 mm, apex acute, corolla ca. 10 mm diam.; pistils erect, 4–7 mm; styles 1–2.5 mm. <b>Follicles</b> ascending, with adaxial margins ca. 45–60º above horizontal. <b>2n</b> = 34 [68, Mexico].</span><!--

-->{{Treatment/Body
|phenology=Flowering spring.
|habitat=Bluffs, flats, and rocky slopes near sea
|elevation=0-10 m
|distribution=Calif.;Mexico (Baja California).
|discussion=<p>Of conservation concern.</p><!--
--><p>Subspecies attenuata is abundant southward in Mexico but barely enters southwestern San Diego County on the coast, where it is now rare. It is considered seriously threatened in California. <i>Dudleya attenuata</i> subsp. orcuttii (Rose) Moran was thought to be distinct in having white or rose-tinged petals; subsequent field work showed that some populations include plants with yellow petals (R. V. Moran 2001). Stylophyllum parishii was supposedly from Pala, 90 kilometers to the north of the southwestern San Diego County population of <i></i>subsp.<i> attenuata</i>, and was based on cultivated plants that apparently were mislabeled (Moran 1943).</p><!--
--><p>In northwest Baja California <i></i>subsp.<i> attenuata</i> hybridizes with <i>Dudleya</i> brittonii, <i>D. edulis</i>, <i>D. formosa</i>, and <i>D. variegata</i>; all the hybrids apparently are rare.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Dudleya attenuata subsp. attenuata
|authority=
|rank=subspecies
|parent rank=species
|synonyms=Dudleya attenuata subsp. orcuttii;Stylophyllum orcuttii;Stylophyllum parishii
|basionyms=
|family=Crassulaceae
|phenology=Flowering spring.
|habitat=Bluffs, flats, and rocky slopes near sea
|elevation=0-10 m
|distribution=Calif.;Mexico (Baja California).
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V8/V8_352.xml
|genus=Dudleya
|subgenus=Dudleya subg. Stylophyllum
|species=Dudleya attenuata
|subspecies=Dudleya attenuata subsp. attenuata
}}<!--

-->[[Category:Treatment]][[Category:Dudleya attenuata]]