View source for Castilleja citrina

{{Treatment/ID
|accepted_name=Castilleja citrina
|accepted_authority=Pennell
|publications={{Treatment/Publication
|title=Proc. Acad. Nat. Sci. Philadelphia
|place=73: 532. 1922
|year=1922
}}
|common_names=Lemon paintbrush
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Castilleja purpurea var. citrina
|authority=(Pennell) Shinners
}}
|hierarchy=Orobanchaceae;Castilleja;Castilleja citrina
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Orobanchaceae]]</div><div class="higher-taxon"><small>genus</small>[[Castilleja]]</div><div class="higher-taxon"><small>species</small>[[Castilleja citrina]]</div></div>
|volume=Volume 17
|mention_page=page 575, 598, 623, 649
|treatment_page=page 597
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, 1.5–3.5 dm; from a slender, woody caudex; with a taproot or stout, branched roots. <b>Stems</b> few to many, erect to ascending, unbranched or branched, hairs appressed to ± ascending, matted, long, soft, mixed with short-glandular ones, denser distally, sometimes obscuring surface. <b>Leaves</b> green, sometimes brown, linear to linear-lanceolate, 3–7 cm, not fleshy, margins plane, involute, 3–7-lobed, apex acute to rounded; lateral lobes spreading, narrowly linear, apex acuminate. <b>Inflorescences</b> (3.5–)8–20 × 2–5.5 cm; bracts proximally greenish, distally bright yellow, sometimes pale yellow to pale orange, sometimes aging white to pink, narrowly to broadly lanceolate or oblong, 3–5(–7)-lobed; lobes spreading to ascending, linear, long, arising at or below mid length, apex obtuse to rounded. <b>Calyces</b> green, pale green, or whitish, lobes colored as bracts, 12–18 mm; abaxial and adaxial clefts 8–15 mm, 60–75% of calyx length, deeper than laterals, lateral 2.5–3 mm, 20% of calyx length; lobes linear to very narrowly triangular (equilaterally triangular if very short), apex obtuse to rounded. <b>Corollas</b> straight but curved at tip, 30–41 mm; tube 21–26 mm; beak slightly to long-exserted, adaxially green to yellowish, sometimes aging pinkish, 10–15 mm; abaxial lip white or yellow, sometimes partly green, darkening with age, only slightly inflated, exserted from abaxial cleft, 3–7 mm, ca. 50% as long as beak; teeth prominent, petaloid, spreading, yellow, 2.5–6 mm. <b>2n</b> = 24.</span><!--

-->{{Treatment/Body
|phenology=Flowering (Mar–)Apr–May.
|habitat=Calcareous prairies, sandy fields, gravelly limestone hillsides, limestone outcrops, mesquite, juniper, oak-juniper, and post oak woodlands, roadsides.
|elevation=300–800 m.
|distribution=Kans.;Okla.;Tex.
|discussion=<p>Although the range of <i>Castilleja citrina</i> overlaps the range of its close relatives, <i>C. lindheimeri</i> and <i>C. purpurea</i>, in central Texas, <i>C. citrina</i> extends considerably farther to the west and northwest of the others (G. L. Nesom and J. M. Egger 2014). The inflorescences of <i>C. citrina</i> are mostly pale to bright lemon yellow or occasionally brassy yellow. The color and usually more elongate abaxial corolla lip separate it from <i>C. lindheimeri</i> and <i>C. purpurea</i>. <i>Castilleja citrina</i> is similar to some color forms of <i>C. sessiliflora</i>, but the more conspicuously curved corolla of <i>C. sessiliflora</i> is usually exserted far above the calyx and is often white to pale pink, rather than yellow.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Castilleja citrina
|author=
|authority=Pennell
|rank=species
|parent rank=genus
|synonyms=Castilleja purpurea var. citrina
|basionyms=
|family=Orobanchaceae
|phenology=Flowering (Mar–)Apr–May.
|habitat=Calcareous prairies, sandy fields, gravelly limestone hillsides, limestone outcrops, mesquite, juniper, oak-juniper, and post oak woodlands, roadsides.
|elevation=300–800 m.
|distribution=Kans.;Okla.;Tex.
|reference=None
|publication title=Proc. Acad. Nat. Sci. Philadelphia
|publication year=1922
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V17/V17_1047.xml
|genus=Castilleja
|species=Castilleja citrina
}}<!--

-->[[Category:Treatment]][[Category:Castilleja]]