Castilleja brevilobata |
Castilleja citrina |
|
---|---|---|
short-lobed paintbrush |
lemon paintbrush |
|
Habit | Herbs, perennial, 1–5 dm; from a branched, woody caudex; with a taproot. | Herbs, perennial, 1.5–3.5 dm; from a slender, woody caudex; with a taproot or stout, branched roots. |
Stems | solitary or few, erect or ascending, unbranched, sometimes branched, hairs spreading, short, medium, and long, soft, short and medium ones short stipitate-glandular. |
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. |
Leaves | green or ± yellow, lanceolate, elliptic, or oblong to narrowly ovate, 1–2(–2.5) cm, not fleshy, margins plane or wavy, involute, (0–)3–5(–7)-lobed, apex rounded to acute; lobes ascending to erect, linear to lanceolate, apex rounded to acute. |
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. |
Inflorescences | 3–20 × 2–3.5 cm; bracts proximally greenish to dull brown, distally red, orange-red, or scarlet, sometimes orange or yellow, broadly lanceolate or oblong, (0–)3–5-lobed; lobes ascending, broadly to narrowly lanceolate, short, arising above mid length, apex acute, obtuse, or rounded. |
(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. |
Corollas | straight, 15–24(–26) mm; tube 12–16 mm; beak exserted, abaxial lip equal to calyx; beak adaxially green or ± yellow-green, 7–10 mm, puberulent, stipitate-glandular; abaxial lip deep green, reduced, rounded, 1–2 mm, 10–25% as long as beak; teeth incurved to erect, light green, 0.5–1 mm. |
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. |
Calyces | green or whitish with green veins, lobes colored as bract lobes or paler, 14–30 mm; abaxial and adaxial clefts 5.5–8.5 mm, 30–40% of calyx length, deeper than laterals, lateral 1.5–4 mm, 20–25% of calyx length; lobes oblong to narrowly triangular, apex obtuse to rounded. |
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. |
2n | = 24. |
= 24. |
Castilleja brevilobata |
Castilleja citrina |
|
Phenology | Flowering Mar–Aug. | Flowering (Mar–)Apr–May. |
Habitat | Dry savannas, rocky slopes and open conifer forests, on serpentine. | Calcareous prairies, sandy fields, gravelly limestone hillsides, limestone outcrops, mesquite, juniper, oak-juniper, and post oak woodlands, roadsides. |
Elevation | 200–1700 m. [700–5600 ft.] | 300–800 m. [1000–2600 ft.] |
Distribution |
CA; OR
|
KS; OK; TX
|
Discussion | Castilleja brevilobata is endemic to dry serpentine openings in the Siskiyou Mountains of southwestern Oregon and adjacent California. Although sometimes treated as part of C. applegatei or C. hispida, its morphology does not suggest a close connection with either. This species occasionally hybridizes with C. pruinosa in Del Norte County, California. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Although the range of Castilleja citrina overlaps the range of its close relatives, C. lindheimeri and C. purpurea, in central Texas, C. citrina extends considerably farther to the west and northwest of the others (G. L. Nesom and J. M. Egger 2014). The inflorescences of C. citrina are mostly pale to bright lemon yellow or occasionally brassy yellow. The color and usually more elongate abaxial corolla lip separate it from C. lindheimeri and C. purpurea. Castilleja citrina is similar to some color forms of C. sessiliflora, but the more conspicuously curved corolla of C. sessiliflora is usually exserted far above the calyx and is often white to pale pink, rather than yellow. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 591. | FNA vol. 17, p. 597. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | C. hispida subsp. brevilobata | C. purpurea var. citrina |
Name authority | Piper: Proc. Biol. Soc. Wash. 33: 104. (1920) | Pennell: Proc. Acad. Nat. Sci. Philadelphia 73: 532. (1922) |
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