Castilleja attenuata |
Castilleja mogollonica |
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attenuate Indian paintbrush, attenuate paintbrush, narrow-leaf owl's-clover, narrow-leaf owl-clover, narrow-leaf paintbrush, valley-tassels |
Mogollon or White Mountains paintbrush |
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Habit | Herbs, annual, 1–4.5 dm; with fibrous roots. | Herbs, perennial, 2.5–5 dm; from a woody caudex; with a taproot. |
Stems | solitary, erect to ascending, unbranched, sometimes branched from base, hairs spreading, short and medium, ± stiff, eglandular. |
few to several, ascending to erect, unbranched or branched distally, sometimes with a few small, leafy axillary shoots, hairs spreading, long, soft, eglandular. |
Leaves | green to purple-tinged, linear to linear-lanceolate, (1–)2–8 cm, not fleshy, margins plane, flat, 0(–5)-lobed, apex acuminate; lobes spreading to ascending, filiform to lanceolate, apex sometimes acuminate. |
green to purple-tinged, sometimes purple, narrowly to broadly lanceolate, 2.5–5 cm, not fleshy, margins plane, sometimes ± wavy, flat, 0(–5)-lobed, apex acuminate; lobes ascending-spreading, linear to narrowly lanceolate, apex acute. |
Inflorescences | (1.5–)2–10(–19, –30 in fruit) × 1–2 cm; bracts proximally green to pale brown, rarely dull reddish brown, distally white on apices, sometimes pale yellow or pale pink-purplish on apices, rarely greenish or dull reddish brown throughout, lanceolate or lanceolate-elliptic, 3(–5)-lobed; lobes ascending, linear to lanceolate, long, arising below mid length, apex acuminate, acute, or obtuse. |
3–15 × 2–4 cm; bracts proximally greenish, distally yellow-green, green, pale yellow, cream, or pale orange, often tinged with bright orange along margins, aging dull pink, broadly lanceolate to oblong or obovate, (0–)3–5(–7)-lobed; lobes ascending to erect, linear to narrowly lanceolate, medium length, arising above or below mid length, central lobe apex rounded to obtuse, lateral ones usually acute. |
Corollas | straight, 10–25 mm; tube 9–20 mm, not expanded distally; beak exserted, straight, adaxially white, light yellow, or greenish, 3–5 mm, inconspicuously puberulent; abaxial lip white or yellow with deep brown to purple spots, often becoming pink, slightly inflated, exserted or not, pouches 3, 2 mm wide, 1–1.5 mm deep, 3–4 mm, 75–80% as long as beak; teeth erect, white, pale yellow, or pink, 0.5–1.2 mm. |
straight, (15–)17–27 mm; tube 11–12 mm; beak exserted, adaxially green, 9–10 mm; abaxial lip green, reduced, visible in front cleft, 0.5–2 mm, 10–20% as long as beak; teeth incurved to erect, green, 0.5–1 mm. |
Calyces | colored as bracts, (8–)15–23 mm; abaxial and adaxial clefts (4–)6–8 mm, abaxial ca. 50% of calyx length, adaxial ca. 75% of calyx length, lateral 3–3.5 mm, 33% of calyx length; lobes linear to narrowly triangular, apex acute to acuminate. |
colored as bracts, 13–20 mm; abaxial and adaxial clefts 5–9 mm, 33–50% of calyx length, deeper than laterals, lateral 1–2 mm, 7–25% of calyx length; lobes oblong, apex acute to rounded. |
Filaments | glabrous. |
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2n | = 24. |
= 24, 48. |
Castilleja attenuata |
Castilleja mogollonica |
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Phenology | Flowering (Feb–)Mar–Jun. | Flowering Jun–Sep. |
Habitat | Grasslands, pastures, moist margins of springs and streams, damp rocky slopes. | Subalpine wet meadows and springs, mixed conifer forests, volcanic soils. |
Elevation | 0–2100 m. (0–6900 ft.) | 2600–2900 m. (8500–9500 ft.) |
Distribution |
AZ; CA; OR; WA; BC; Mexico (Baja California); South America (Chile)
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AZ |
Discussion | Castilleja attenuata is a common and widespread species, ranging from southwestern Canada to northern Baja California, with several disjunct populations in central Chile. It is sensitive to competition from weeds. Disjunct populations in the Rincon Mountains in Pima County, Arizona, often have pink bracts but are otherwise typical. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Castilleja mogollonica is endemic to the Mogollon Rim in the White Mountains of Apache County. It is frequently confused with the widespread C. septentrionalis but is amply distinct therefrom. This species faces threats from grazing, road building, and recreational activities. It occasionally hybridizes with C. nelsonii. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 590. | FNA vol. 17, p. 632. |
Parent taxa | Orobanchaceae > Castilleja | Orobanchaceae > Castilleja |
Sibling taxa | ||
Synonyms | Orthocarpus attenuatus | |
Name authority | (A. Gray) T. I. Chuang & Heckard: Syst. Bot. 16: 656. (1991) | Pennell: Notul. Nat. Acad. Nat. Sci. Philadelphia 237: 1. (1951) |
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