Castilleja xanthotricha |
Castilleja mogollonica |
|
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John Day or yellow-hairy paintbrush, John Day paintbrush, yellow hair paintbrush, yellow-hair Indian paintbrush |
Mogollon or White Mountains paintbrush |
|
Habit | Herbs, perennial, 1–2(–3.8) dm; from a woody caudex; with a taproot. | Herbs, perennial, 2.5–5 dm; from a woody caudex; with a taproot. |
Stems | few to several, ± decumbent to erect or ascending, unbranched, sometimes with short, leafy axillary shoots, hairs erect to spreading, long, soft, eglandular, mixed with short stipitate-glandular ones. |
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, linear, lanceolate to broadly lanceolate, oblong, or cuneate, 0.8–5 cm, not fleshy, margins plane to wavy, involute, 0–5-lobed, apex acute, sometimes rounded; lobes spreading, linear, arising below mid length, nearly as broad as center lobe, apex acute. |
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 | 3–14 × 1.5–4.5 cm; bracts proximally greenish, rarely dull reddish purple, distally white to cream, rarely pale yellow or dull, pale pink (sharply differentiated from proximal coloration), lanceolate or oblong to narrowly ovate, (3–)5–7-lobed; lobes ascending, linear to obovate, ± broadened distally, medium, long, proximal lobes arising below mid length, central lobe apex broadly rounded to truncate, others acute to rounded. |
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 | curved, 17–23 mm; tube 15–19 mm; beak exserted, adaxially green, 5–8(–9) mm, puberulent, stipitate-glandular; abaxial lip deep purple (color sometimes visible through calyx), green, pinkish, or pale yellow, ± prominent, slightly inflated, usually hidden in calyx, sometimes right at top of calyx, 2 mm, ca. 50% as long as beak; teeth ascending, whitish, yellowish, pink, or green, 1–1.5 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, 15–26 mm; abaxial and adaxial clefts 3.5–7 mm, 25–50% of calyx length, deeper than laterals, lateral 2–5 mm, 12–25% of calyx length; lobes linear, oblong, or narrowly triangular, center lobe apex usually rounded, lobes acute to rounded. |
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. |
2n | = 48. |
= 24, 48. |
Castilleja xanthotricha |
Castilleja mogollonica |
|
Phenology | Flowering Apr–Jul. | Flowering Jun–Sep. |
Habitat | Arid, rocky, sandy, or clay slopes of basaltic origin, sagebrush steppes. | Subalpine wet meadows and springs, mixed conifer forests, volcanic soils. |
Elevation | 400–800 m. (1300–2600 ft.) | 2600–2900 m. (8500–9500 ft.) |
Distribution |
OR
|
AZ |
Discussion | Castilleja xanthotricha is endemic to moderate elevations in the sagebrush hills of the John Day River drainage in north-central Oregon. N. H. Holmgren (1971) hypothesized that this tetraploid species is of allopolyploid hybrid origin between C. glandulifera and C. oresbia. (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. 665. | FNA vol. 17, p. 632. |
Parent taxa | ||
Sibling taxa | ||
Name authority | Pennell: Notul. Nat. Acad. Nat. Sci. Philadelphia 74: 5. (1941) | Pennell: Notul. Nat. Acad. Nat. Sci. Philadelphia 237: 1. (1951) |
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