View source for Caulanthus amplexicaulis

{{Treatment/ID
|accepted_name=Caulanthus amplexicaulis
|accepted_authority=S. Watson
|publications={{Treatment/Publication
|title=Proc. Amer. Acad. Arts
|place=17: 364. 1882
|year=1882
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Caulanthus amplexicaulis var. barbarae
|authority=(J. T. Howell) Munz
|rank=variety
}} {{Treatment/ID/Synonym
|name=Euklisia amplexicaulis
|authority=Greene
|rank=species
}} {{Treatment/ID/Synonym
|name=Pleiocardia magna
|authority=(S. Watson) Jepson
|rank=species
}} {{Treatment/ID/Synonym
|name=Streptanthus amplexicaulis
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Streptanthus amplexicaulis var. barbarae
|authority=J. T. Howell
|rank=variety
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Thelypodieae;Caulanthus;Caulanthus amplexicaulis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Thelypodieae]]</div><div class="higher-taxon"><small>genus</small>[[Caulanthus]]</div><div class="higher-taxon"><small>species</small>[[Caulanthus amplexicaulis]]</div></div>
|volume=Volume 7
|mention_page=page 678, 684
|treatment_page=page 679
}}<!--

--><span class="statement" id="st-undefined" data-properties="">Annuals; glabrous throughout. <b>Stems</b> erect, unbranched or branched distally, 0.4–11 dm. <b>Basal</b> leaves rosulate; petiole 0.5–3 cm; blade obovate to broadly oblanceolate, 1–7 cm × 5–37 mm, margins coarsely dentate. <b>Cauline</b> leaves (median) sessile; blade oblong to broadly ovate or obovate, 2–8 cm × 10–40 mm (smaller distally, base amplexicaul), margins coarsely dentate or entire. <b>Racemes</b> (lax), without a terminal cluster of sterile flowers. <b>Fruiting</b> pedicels divaricate to ascending, 2.5–19 mm. <b>Flowers</b>: sepals erect, (dark maroon-purple or ochroleucous to yellowish), ovate to ovate-lanceolate, 4–9.2 × 2–4 mm (equal); petals (abaxial pair) usually stramineous to yellowish green, rarely pale purple, (adaxial pair) purple, (slightly longer), 10–18 mm, blade 4–10 × 0.5–1.5mm, crisped, claw narrowly oblong-oblanceolate, 6–10 × 1–3 mm; filaments in 3 unequal pairs, abaxial pair 3–7 mm, lateral pair 1–5 mm, adaxial pair 4.5–9 mm; anthers oblong, unequal, 1–3.5 mm (adaxial pair smaller). <b>Fruits</b> divaricate to ascending (often distinctly curved), terete or slightly latiseptate, 4.5–14(–16.7) cm × 1–1.5 mm; valves each with obscure midvein; ovules 40–92 per ovary; style 0–0.4 mm; stigma subentire. <b>Seeds</b> 1.4–2.2 × 0.9–1.2 mm. <b>2n</b> = 28.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jul(-Aug).
|habitat=Chaparral, montane forests, serpentine areas, granitic and shale scree
|elevation=800-2900 m
|distribution=Calif.
|discussion=<p><i>Caulanthus amplexicaulis</i> is known from Los Angeles, San Bernardino, Santa Barbara, and Ventura counties. The serpentine populations of Santa Barbara County have sepals that are ochroleucous to yellowish instead of the dark maroon ones found elsewhere in the species range. They were recognized by R. C. Rollins (1993) and R. E. Buck (1995) as var. barbarae. Both vars. barbarae and amplexicaulis form a distinct monophyletic clade but they are without reproductive barriers (A. E. Pepper and L. E. Norwood 2001). Some other species of <i>Caulanthus</i> show comparable or even greater variation in sepal color, and it might be more practical to treat var. barbarae as a color form.</p>
|tables=
|references={{Treatment/Reference
|id=pepper2001a
|text=Pepper, A. E. and L. E. Norwood. 2001. Evolution of Caulanthus amplexicaulis var. barbarae (Brassicaceae), a rare serpentine endemic plant: A molecular phylogenetic perspective. Amer. J. Bot. 88: 1479–1489.
}}
}}<!--

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-->{{#Taxon:
name=Caulanthus amplexicaulis
|authority=S. Watson
|rank=species
|parent rank=genus
|synonyms=Caulanthus amplexicaulis var. barbarae;Euklisia amplexicaulis;Pleiocardia magna;Streptanthus amplexicaulis;Streptanthus amplexicaulis var. barbarae
|basionyms=
|family=Brassicaceae
|phenology=Flowering Apr–Jul(-Aug).
|habitat=Chaparral, montane forests, serpentine areas, granitic and shale scree
|elevation=800-2900 m
|distribution=Calif.
|reference=pepper2001a
|publication title=Proc. Amer. Acad. Arts
|publication year=1882
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_1162.xml
|tribe=Brassicaceae tribe Thelypodieae
|genus=Caulanthus
|species=Caulanthus amplexicaulis
}}<!--

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